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The Systematic Placement of the Monotypic Genus Paraisometrum (Gesneriaceae) Based on Molecular and Cytological Data PDF

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植 物 分 类 与 资 源 学 报 ,33 ( ): 摇 2011 5 465~476 Plant Diversity and Resources : 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 DOI 10.3724/SP.J.1143.2011.11075 单种属弥勒苣苔属系统位置研究: 基于分子和细胞学数据* 谭 英 , , 王 智 , , 隋学艺 , , 胡光万 , 1 2 1 3 1 4 1 摇 摇 5,6, 龙春林1,6** MOTLEY Timothy 中国科学院昆明植物研究所 云南昆明 中国科学院研究生院 北京 西南林业大学林学院 (1 , 摇 650201; 2 , 摇 100049; 3 , 云南昆明 云南农业大学农学院 云南昆明 奥多明尼奥大学生物学部 摇 650224; 4 , 摇 650201; 5 , 美国维吉尼亚州诺福克 中央民族大学生命环境科学学院 北京 摇 23529鄄0266; 6 , 摇 100081) 摘要: 弥勒苣苔属是苦苣苔科的单种属 仅分布于中国西南部 为探讨弥勒苣苔在苦苣苔亚科中的系统位 , 。 置 我们选择了苦苣苔亚科 个类群 外类群为苦苣苔亚科以外的 个物种 用最大简约法 和 , 116 , 7 。 (MP) 贝叶斯分析 对以上类群的核基因 以及两个叶绿体基因trnL鄄F atpB鄄rbcL数据进行了独立和联 (BI), ITS 、 合分析 在三个片段联合分析的结果中 弥勒苣苔与马铃苣苔属 后蕊苣苔属 金盏苣苔属 直瓣苣苔属 。 , 、 、 、 以及川鄂粗筒苣苔构成一个强烈支持的分枝 树中 此分枝为并系 而在 分析中 弥勒苣苔与川鄂 。 MP , , BI , 粗筒苣苔 直瓣苣苔属互为姐妹类群 同时 第一次报道了弥勒苣苔的染色体数目 n 根据前人 、 。 , (2 =34)。 报道 马铃苣苔属 后蕊苣苔属 粗筒苣苔属和直瓣苣苔属的染色体数目同为 n 这进一步支持我们 , 、 、 2 =34, 的分子系统发育分析 。 关键词: atpB鄄rbcL 苦苣苔科 弥勒苣苔属 系统学 trnL鄄F ; ; ITS; ; ; 中图分类号: 文献标识码: 文章编号: Q942, Q949摇 摇 摇 摇 摇 A摇 摇 摇 摇 摇 2095-0845(2011)05-465-12 The Systematic Placement of the Monotypic Genus Paraisometrum Gesneriaceae Based on Molecular and Cytological Data * ( ) 1,2 1,3 1,4 1 TAN Ying , WANG Zhi , SUI Xue鄄Yi , HU Guang鄄Wan , 5,6 1,6** MOTLEY Timothy , LONG Chun鄄Lin KunmingInstituteofBotany ChineseAcademyofSciences GraduateUniversityofChinese (1 , ,Kunming650201,China;2 AcademyofSciences SchoolofForestry SouthwestForestryUniversity ,Beijing100049,China;3 , ,Kunming CollegeofAgronomy YunnanAgriculturalUniversity 650224,China;4 , ,Kunming650201,China; DepartmentofBiologicalSciences OldDominionUniversity 5 , ,Norfolk,Virginia23529鄄0266,USA; CollegeofLifeandEnvironmentalSciences MinzuUniversityofChina 6 , ,Beijing100081,China) Abstract Paraisometrum : , isamonotypicgenusendemictoSouthwestChina,withanuncertainsystematicposition. Paraisometrum To resolve the phylogenetic relationships of within subfamily Cyrtandroideae, we performed phyloge鄄 neticanalysesof116taxaplacedinthesubfamilyCyrtandroideaeand7outgroupspeciesselectedfromotherGesneri鄄 aceae subfamilies. The independent and combined analyses were performed on three DNA datasets: the nuclear in鄄 trnL鄄F atpB鄄rbcL ternal transcribed spacer regions (ITS) and two chloroplast regions ( , ). Maximum Parsimony (MP) and Bayesian Inference (BI) were used fortreeconstruction. Thecombinedthreegenedatasetstronglysup鄄 * Foundationitems:TheChineseAcademyofSciences(KSCX2鄄YW鄄Z鄄0925 &O92441112F),theMinistryofEducation ofChinathrough its985and111projects(MUC98503鄄001006&B08044),theNationalScienceFoundationofChina(31070288),theJapan Society for the Promotion of Science (JSPS/AP/109080), and the Ministry of Science and Technology of China (2008FY110400鄄2鄄2) ** Authorforcorrespondence;E鄄mail:[email protected] Receiveddate: 2011-05-10, Accepteddate: 2011-06-16 作者简介 谭英 女 在读硕士研究生 主要从事保护生物学研究 : (1986-) , , 。 E鄄mail:[email protected] 植 物 分 类 与 资 源 学 报 第 卷 摇466摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 33 port Paraisometrum Oreocharis Opithandra Isometrum Ancylostemon Briggsia ros鄄 in a clade containing , , , , and thomii Paraisometrum B.rosthomii . IntheMPtreethislineageisanunresolvedpolytomy,butBIresolves assisterto Ancylostemon Paraisometrum n and the clade. We did the first chromosome counts of (2 =34). The diploid number Oreocharis Opithandra Briggsia Ancylostemon 34 hasalsobeenreportedfor , , and ,whichlendsfurthersupporttothe Paraisometrum placement of in this lineage. Key words atpB鄄rbcL Paraisometrum trnL鄄F : ; Gesneriaceae; ITS; ; Phylogeny; Paraisometrum 摇 W.T. Wang is a monotypic ge鄄 or combined ITS and cpDNA sequences, respective鄄 P. mileense P. mileense nus, containing W. T. Wang, which is ly. Neither study included samples of , et al endemic to Southwest China (Weitzman ., which left its phylogenetic position unresolved. The P.mileense 1997) in the Yunnan Province (Shui, 2007a, b) rediscovery of a population of have made et al and Guangxi Region (Xu ., 2009). The holo鄄 it possible determine the phylogenetic position of this type of this plant was collected by French missionary species to test the morphological hypothsis of Wang et al Ducloux F. in Mi鄄le County, Yunnan Province in . (1998). Parai鄄 1906 and remained unnamed and stored in Paris for To investigate the systematic position of et al sometrum nearly 100 years. In 1997, when Weitzman . , we used DNA sequences for the nuclear wrote an article on Gesneriaceae in the corpus for internal transcribed spacer regions (ITS), cpDNA trnL鄄F trnL鄄F atpB鄄rbcL Flora of China, Prof. W. T. Wang checked Du鄄 intron鄄spacer region ( ) and atpB鄄rbcL cloux忆s specimens in Paris collected from Mi鄄le spacer ( ). In addition, we report the Paraisometrum County and concluded that it represented a new ge鄄 chromosome numbers of for the first Paraisometrum nus in Gesneriaceae and named it time and discuss characters among closely related mileense et al (Weitzman ., 1997). It was believed genera. extinct until 2006. In 2006, the species was redis鄄 1摇 Materials and methods covered in the Shilin County,Yunnan Province by Dr. 1.1摇 Taxon sampling Yuming Shui, a botanist from the Kunming Institute of Botany, Chinese Academy of Sciences (Shui, To produce a reliable phylogeny of the subfami鄄 2007a, b). According to the IUCN Species Pro鄄 ly Cyrtandroideae the ingroup comprised 116 taxa, Paraisometrum mileense gramme, can be considered representing 115 species in 46 genera and included an endangered species because of its narrow geo鄄 4 members of Gesnerioid and3 members of Coronan鄄 graphic range and small population size. theroid as outgroups (Appendix). These outgroup The Chinese Gesneriaceae, based on morpho鄄 taxa were chosen based on results of recent studies of et al et al logical characteristics, have been divided into six Gesneriaceae (Zimmer ., 2002; Perret ., et al tribes: Ramondeae, Didymocarpeae, Trichosporeae, 2003; M觟ller .,2009). Sequences used in this Cyrtandreae, Epithemateae and Titanotricheae (Wang study were from GenBank and supplemented with 17 et al et al P.mile鄄 trnL鄄F atpB鄄 ., 1992). Wang . (1998) placed new sequences (5 individuals of , 6 ense rbcL in the Didymocarpeae, and stated that it is most , 6 ITS). For the ingroup we followed the taxo鄄 Isometrum similar to the genus Craib because they nomic classification of Weber (2004). 13 species both have four fertile stamens and a funnelform (5 genera) belonged to Epithematoid Gesneriaceae tube, longer than the lobes. More recently, molecu鄄 and 103 species (42 genera) came from Didymo鄄 lar analyses of subfamily Didymocarpoideae have carpoid Gesneriaceae (Appendix). et al 1 2摇 Molecular methods been conducted by Mayer . (2003) and M觟ller . et al . (2009) based on chloroplast DNA (cpDNA) Materials for DNA extraction were from various 期 et al Paraisometrum 5 摇 摇 摇 TAN Ying .: The Systematic Placement of the Monotypic Genus (Gesneriaceae) …摇 摇 摇46摇7 forms and diverse sources, including fresh leaves rithm, MulTrees in effect, and steepest descent off. from research collections, silica鄄dried leaves from Support for the nodes resolved in the strict consensus our field collections. Genomic DNA was isolated of the MP trees was calculated by bootstrap analyses with a modified CTAB protocol (Doyle and Doyle, (Felsenstein, 1985) with 1 000 heuristic鄄search 1987). replicates as described above. Bayesian analysis was Amplifications of ITS were carried out following performed using MrBayes v. 3. 1. 2 (Huelsenbeck the PCR profile described by M觟ller and Cronk and Ronquist, 2003) for all the datasets. The most (1997), using forward primer ‘ITS 5P爷 and re鄄 appropriate molecular model for each dataset was de鄄 trnL鄄F verse primer ‘ITS 8P爷. The intron鄄spacer termined with jModelTest0.1.1 (Guindon and Gas鄄 trnL鄄F atpB鄄rbcL atpB鄄rbcL region ( ) and spacer ( ) cuel, 2003; Posada, 2008). The model GTR+I+G et al were amplified following Mayer . (2003) using was selected. The Markov chain Monte Carlo (MC鄄 trnL鄄F et al primers ‘c爷 and ‘f爷 for (Taberlet ., MC) algorithm was run for 10 000 000 generations atpB鄄rbcL 1991) and primers ‘JF31爷 and ‘JF5爷 for with one cold and three heated chains in two inde鄄 et al (Samuel .,1997). PCR was performed using a pendent parallel analyses. Trees were sampled every 襆 DNAEngine peltier thermal cycler ( Bio鄄RAD, 100 generations from the chain. The first 20% trees Inc.). The PCR products were purified using a mul鄄 were discarded as burn鄄in (generations prior to sta鄄 tifunction DNA purification KIT (BioTeke Inc.). tionary of likelihood values). 1 4摇 Cytological protocols The purified PCR products were cycle鄄sequenced . Paraisometrum mileense using an ABI Prism BigDye Terminator Cycle Kit fol鄄 Root tips of were pre鄄 -1 lowing standard kit protocols (Perkin鄄Elmer Applied treated in0.002mol·L 8鄄hydroxyquinoline for4 to Biosystems) and run on a ABI鄄PRISM3730 se鄄 5 h at room temperature, and then fixed in Carnoy忆s quencher. Forward and reverse sequences were as鄄 I (3 ethanol 颐 1 glacial acetic acid) for 30 min at -1 sembled using SeqMan of DNAStar (DNASTAR, 5益. After hydrolysis for 1 min in 1 mol·L HCl at 1999), visually aligned with ClustalX v. 1. 83 60益, followed by washing through several changes et al (Thompson ., 1998) followed by manual cor鄄 of distilled water, the root tips were dyed in carbol rection in BioEdit (Hall, 1999). Sequence align鄄 fuchsin and then squashed. The chromosomes were ments and PAUP/Nexus鄄formatted files for individu鄄 examined using Axioskop 40 made by ZEISS and al regions and combined analyses are available from photographed using JVC TK鄄C1480BEC color video the authors upon request. camera. 1 3摇 Phylogenetic analysis . 2摇 Results Phylogenetic analyses were performed using Maxi鄄 2.1摇 Phylogenetic analysis mumParsimony (MP) and Bayesian Inference (BI) u鄄 sing the protocols of Rannala and Yang (1996) on the The main clades found in the parsimony analy鄄 atpB鄄rbcL trnL鄄F trnL鄄F atpB鄄rbcL individual ITS, , , combined cpDNA sies of the individual ITS, , and and combined three gene datasets respectively. Maxi鄄 combined cpDNA datasets (not shown) were broadly * mum Parsimony analysis was performed with PAUP congruent with, although less well resolved than, version 4.0b10 (Swofford, 2002). Gaps were trea鄄 the consensus trees from the combined three gene ted as missing data, and characters were assumed to dataset. This reflects the fewer of informative cha鄄 be unordered. Heuristic searches were performed racters in the separate analyses. The results of the employing 1000 random replicates, holding one tree combined three gene analyses are presented here. at each step during stepwise addition, using tree鄄bi鄄 Of the aligned2990 characters (ITS:791 char鄄 trnL鄄F atpB鄄rbcL section鄄reconnection (TBR) branch鄄swapping algo鄄 acters, : 1189 characters, : 1010 植 物 分 类 与 资 源 学 报 第 卷 摇468摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 33 n characters) analyzed, 1100 were constant, 549 un鄄 2 =34, and the chromosome size is small, <2 滋m informative, and 1341 parsimony informative. Maxi鄄 (Fig.3). mum parsimony analysis resulted in 4 most parsimo鄄 3摇 Discussion nious trees of7058 steps, with a CI of0.44, a RI of 3.1摇 Phylogenetic relationships 0.68, and a RC of 0.30. A strict consensus tree of the combined dataset resolved 92 nodes with boot鄄 In our study, Old World Gesneriaceae can be strap support (BS) 逸50% (Fig. 1). The phylo鄄 clearly divided into two tribal groups that are congru鄄 et al gram from the Bayesian analysis of the combined ent with previous studies (Smith .,1997; Wang et al et al dataset resolved113 nodes,95 of which had posteri鄄 and Li, 2002; Mayer ., 2003; M觟ller ., et al or probabilities (PP) 逸0.90 (Fig.2). Support for 2009; Wang ., 2010). Weber (2004) separa鄄 deep nodes was weak, but the support for the indi鄄 ted subfamily Cyrtandroideae into the small tribe Ep鄄 vidual major clades was strong. ithemateae (Epithematoid Gesneriaceae) and the The MP strict consensus tree had a similar tree large tribe Didymocarpeae in which the members of topology to that of Bayesian consensus tree. Subfam鄄 Cyrtandreae and Trichosporeae were polyphyletically ily Cyrtandroideae is monophyletic and sister to sub鄄 nested at various places (Didymocarpoid Gesneri鄄 family Gesnerioideae (BS = 97%; PP = 100%). aceae). On the basis of morphological and geo鄄 The tribe Epithemateae is sister to the remaining old graphical features, the Didymocarpoid Gesneriaceae world Gesneriaceae with strong support ( BS = can be divided into following groups: Basal Asiatic Corallodiscus 100%; PP =100%). Genus form a and European genera, African genera, Advanced A鄄 clade (BS=87%; PP=100%) and is sister to the siatic genera (including genera with twisted capsular remaining taxa (BS=87%; PP=100%). Basal A鄄 fruits, straight capsular fruits,or indehiscent fruits). Rhynchotechum Platystemma siatic genera, , , and The Asiatic and European, and African groups are Jancaea Ramonda Haberlea European genera, , , , well defined and supported according to the phyloge鄄 et al constitute a clade (BS=93%), which is separated netic result made by M觟ller . (2009). In their Briggsia from the African and remaining Asiatic genera with study, the genus is also not monophyletic, Oreocharis Briggsia Ancyloste鄄 moderate support (BS=87%; PP=100%). Among and , one clade of and Briggisa Chirita Strepto鄄 mon Oreo鄄 the remaining taxa, , , and compose a clade. Our results show that carpus Paraisometrum charis Opithandra Isometrum Ancylostemon are not monophyletic. is in a , , , , Briggsia rosthornii Paraisometrum well supported clade (BS = 100%, PP = 100%) and constitute a Briggsia rosthornii Isometrum lungshengense with , , clade in the Advanced Asiatic group, and suggest Opithandra primuloides Oreocharis auricula Paraisometrum Ancyloste鄄 , and may be mostly related to Ancylostemon mon Briggesia rosthornii three species of . The three species of and than other genera. Ancylostemon 3 2摇 Morphology form a monophyletic group with strong . Paraisometrum support (BS = 100%; PP = 100%). The BI tree The 5 genera in the clade with Paraisometrum provides more resolution in the have some shared floral characters,supporting their re鄄 Paraisometrum Ancylostemon clade, is sister to and lationship. These genera have campanulate calyx, ad Briggsia rosthornii (PP=99%) in a polytomy with basin 5鄄sectus, bilabiate corollas, corolla lobes much the other three genera of the lineagewhile the MP shorter than the corolla tube, and 4 fertile stamens, Isometrum Briggsia Ancy鄄 tree does not resolve any of the relationships among stigma number varies, , ,and lostemon Opithandra Ore鄄 the genera in the clade. have 2 stigmas,whereas and 2 2摇 Cytology charis Paraisome鄄 . can have either 1 or 2 stigmas, and Paraisometrum mileense trum et al has a diploid number of always has a single stigma (Wang .,1998). 期 et al Paraisometrum 5 摇 摇 摇 TAN Ying .: The Systematic Placement of the Monotypic Genus (Gesneriaceae) …摇 摇 摇46摇9 trnL鄄F atpB鄄rbcL Fig.1摇 Strictconsensustreeof4 mostparsimonioustreesbasedonthecombinedITS, and data. Numbersabovebranchesarebootstrapsupportvalues逸50%. Thetribesarelabeledwithbars 植 物 分 类 与 资 源 学 报 第 卷 摇470摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 33 trnL鄄F atpB鄄rbcL Fig.2摇 BayesianphylogrambasedonthecombinedITS, and data. Numbersabovebranchesareposterior probabilityvalues(onlyvalues逸0.90 areshown). Thetribesarelabeledwithbars 期 et al Paraisometrum 5 摇 摇 摇 TAN Ying .: The Systematic Placement of the Monotypic Genus (Gesneriaceae) …摇 摇 摇47摇1 Paraisometrummileense Fig.3摇 Karyomorphologyof . A. Interphasenucleus(伊1000);B. Mitoticprophase(伊1000); C. Mitoticmetaphase(伊1000);D. Mitoticanaphase(伊1000). Thebaris1滋mlong 3 4摇 Cytology Burtt (1962) and Pan (1986) held the opinion that . Isometrum based on their observations that Craib and Chromosome ploidy levels and base numbers Ancylostemon Craib were closely related, which our can provide insight into plant evolution, because et al results support. Wang . (1998) hypothesized sister groups often share chromosome numbers or Paraisometrum Isometrum et al et that was sister to . Our base number (Turner ., 1961; Ehrendorfer al analysis confirmed that these two genera are closely ., 1968; Walker, 1972; Raven, 1975; Grant, Paraisometrum related in the same lineage, but like鄄 1982). However, chromosome counts at the spe鄄 Ancylostemon Briggsia ly has closer affinities to and cies鄄level across the family have been made for only rosthornii . Different from other 3 genera, their aba鄄 about 18% of the taxa in the Gesneriaceae, and the xial lip is longer than adaxial lip. number of genera without chromosome counts is even 3 3摇 Distribution . greater in the subfamily Cyrtandroideae than subfami鄄 Briggsia rosthornii is distributed in Sichuan, ly Gesnerioideae (M觟ller and Kiehn,2004). In the Guizhou, and Hubei provinces of Southwest and Epithemateae, the chromosome counts have high Opithandra South鄄Central China, is scattered throug鄄 variation, with the basic numbers in this group ran鄄 O. primuloides n hout Western China, except for , a ging from =8-12, (Ratter, 1975; Skog, 1984; Ore鄄 et al species restricted to Japan. The distributions of Wang ., 1998). It is more complicated in the ocharis Ancylostemon and range from Southwestern to Didymocarpoid Gesneriaceae, where basic numbers et n Central and Southeastern China (Li,1996; Wang are =4, 8,9,10,11,12,13,14,15,16,17, al Isometrum ., 1998; Li and Wang, 2004). is en鄄 18 (Ratter and Prentice,1967; Ratter,1975; Kie鄄 et al demic to China, and centered in Sichuan, where hn and Weber, 1998; Rashid ., 2001; M觟ller 82% of the species in the genus occur (Pan,1986). and Kiehn, 2004). In previous studies, the genera 植 物 分 类 与 资 源 学 报 第 卷 摇472摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 33 Oreocharis Opithandra Ancylostemon , , and have the 337—353 n Briggsia FelsensteinJ,1985. Confidence limits on phylogenies: an approach same chromosome number 2 =34, has the Evolution 39 n n usingthebootstrap [J]. , :783—791 chromosome number 2 = 34 or 2 = 68 (Ratter, Grant V, 1982. Chromosome number patterns in primitive angio鄄 1963; Ratter and Prentice, 1964; Wang and Gu, BotanicGazette 143 sperms [J]. , :390—394 et al Paraisometrum 1999; Zhou ., 2004). also has GuindonS,GascuelO,2003. A simple, fast, and accurate method n Sys鄄 a chromosome complement of 2 =34, which is an鄄 toestimatelargephylogeniesbyMaximumLikelihood [J]. tematicBiology 52 , :696—704 other character uniting members of this clade. The HallTA,1999. BioEdit: a user鄄friendly biological sequence aligen鄄 chromosome is too small to do karyotype analysis, or menteditorandanalysis program for Windows95/98/NT [J]. we can do further comparison of these species. Al鄄 NucleicAcidsSymposiumSeries 41 , :95—98 though the data are not yet available, we predict that HuelsenbeckJ,RonquistF,2003. MrBayes3:Bayesianphylogenet鄄 Isometrum n Bioinformatics 19 to have a karyotype of 2 =34. ic inference under mixed models [J]. , : 1572—1574 Our molecular analyses place the rare monotypic Paraisometrum KiehnM,WeberA,1998. ChromosomenumbersofMalayanandoth鄄 genus, , among the Didymocarpoid erpaleotropical Gesneriaceae:2. Tribes Trichosporeae, Cyrtan鄄 genera, subfamily Cyrtandroideae of Gesneriaceae. Beitr覿gezurBiologiederPflanzen dreaeandEpithemateae [J]. , Paraisometrum 70 belongs in a strongly supported clade :445—470 Oreocharis Opithandra Isometrum Ancyloste鄄 with , , , LiZY,1996. The geographical distribution of the subfamily Cyrtan鄄 mon Briggsia rosthornii ActaPhytot鄄 , and among and nested in an droideaeEndl. emend. Burtt(Gesneriaceae) [J]. axonomicSinica 34 , :341—360 informal group the Advanced Asiatic group. Bayesi鄄 Plants of Gesneriaceae in China Paraisometrum An鄄 LiZY, Wang WT, 2004. [M]. an analyses support , as sister to HenanScienceandTechnologyPublication cylostemon Briggsia rosthornii Briggsia and . Because M觟llerM, Cronk Q, 1997. Origin and relationships of Saintpaulia rosthornii is a single species (and not the type) in a (Gesneriaceae) based on ribosomal DNA internal transcribed American Journalof Botany 84 polyphyletic genus further study and taxonomic revi鄄 spacer(ITS) sequences [J]. , : 956—965 sion will be required on this clade. So at this time Briggsia rosthornii M觟ller M, Kiehn M, 2004. 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Bethesda Mar鄄 nalofBotany 60 quencealignmentprogram(version1.83)[J]. , , :449—466 yland NationalCenterforBiotechnologyInformation et al : ZimmerE, Roalson E, Skog L ., 2002. Phylogenetic relation鄄 TurnerB, Ellison W, King R, 1961. Chromosome numbers in the shipsintheGesnerioideae(Gesneriaceae) basedonnrDNAITS trnL鄄F trnE鄄T A鄄 Compositae. IV. NorthAmericanspecies,withphyleticinterpre鄄 andcpDNA and spacerregionsequences [J]. AmericanJournalofBotany mericanJournalofBotany 89 tations [J]. ,216—223 , :296—311 植 物 分 类 与 资 源 学 报 第 卷 摇474摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 摇 33 Appendix : GenBank accession numbers for the sequences used in the phylogenetic analysis GenBankaccessionNo. Taxon Locality Voucher atpB鄄rbcL trnL鄄F ITS1/ITS2 Outgrouptaxon Gesnerioid Achimenesadmirabilis Wiehler AJ439982 AJ439827 AY182173 Sinningiacardinalis (Lehm.) H. E. Moore AJ490931 AJ492318 — S.schiffneri Fritsch AJ439900 AJ439745 — Gesneriahumilis L. AJ439976 AJ439821 AY047051 Coronantheroid Asterantheraovata (Cav.) Hanst FJ501371 FJ501427 EF445669 Fidldiaaustralis Cunn. AY423112 AY423130 EF445687 Rhabdothamnuxsolandri Cunn. FJ501370 FJ501426 EF445700 Ingrouptaxon Didymocarpoid Acanthonemastrigosum Hook. f. — FJ501454 FJ501306 Aeschynanthusaustroyunnanensis W.T. Wang FJ501396 FJ501500 AF349218/AF349299 A.bracteatus Wall. exDC. — FJ501501 AF349203/AF349284 A.hildebrandtii Hemsl. — AY047099 AY047040 A.longiflorus (Blume) DC. AJ490920 AJ492307 FJ501333 Agalmylabiflora (Elmer)O.M.Hilliard&B.L.Burtt FJ501421 FJ501541 FJ501361 A.parasitica (Lam.) Kuntze FJ501420 FJ501539 — Ancylostemonaureus (Franch.) B. L. Burtt FJ501398 FJ501505 FJ501336 A.convexus Craib — FJ501506 FJ501337 Annamollifolia (W.T.Wang)W.T.Wang&K.Y.Pan — FJ501543 AF055050/AF055051 A.submontana Pellegr. FJ501422 FJ501542 FJ501362 Boeahygrometrica (Bunge) R. Br. — FJ501476 FJ501319 B.magellanica Lam. — FJ501478 FJ501321 Briggsialongipes (Hemsl. ExOliv.) Craib FJ501423 FJ501545 AF055052/AF055053 B.mihieri Craib — FJ501544 FJ501363 B.rosthornii (Diels) B.L. Burtt FJ501425 FJ501547 FJ501365 Calcareoboeacoccinea C.Y. WuexH.W. Li FJ501406 FJ501516 FJ501365 Chiritaasperifolia (Blume) B.L. Burtt FJ501419 FJ501538 FJ501359 C.caliginosa C.B. Clarke FJ501391 FJ501488 FJ501325 C.gemella D. Wood FJ501408 FJ501523 FJ501345 C.hamosa R. Br. FJ501392 FJ501489 — C.lacunosa (Hookf.) B.L. Burtt FJ501384 FJ501458 FJ501308 C.lavandulacea Stapf. FJ501390 FJ501497 FJ501324 C.longgangensis W.T. Wang AJ490903 AJ492290 FJ501347 C.pinnata W.T. Wang — FJ501526 FJ501349 C.pinnatifida (Hand.鄄Mazz.) B.L. Burtt — FJ501527 FJ501350 C.pumila D. Don FJ501393 FJ501491 FJ501327 *Chiritasp. China,YunnanProv., HGWB鄄754 HQ327455 HQ327447 HQ327462 JiaozixueshanMountain (KUN) C.sinensis Lindl. FJ501409 FJ501524 FJ501348 C.spadiciformis W.T. Wang AJ490904 AJ492291 FJ501346 C.urticifolia Buch.鄄Ham. ExD. Don — FJ501492 FJ501328 C.walkei Gardner — FJ501490 FJ501326 Colpogynebetsiliensis B.L. Burtt — FJ501445 FJ501302 Conandronramondioides Sieb. &Zucc. FJ501405 FJ501515 FJ501340 Corallodiscusconchifolia Batalin FJ501375 FJ501433 — C.lanuginosus (Wall. ExR. Br) B. L. Burtt FJ501374 FJ501432 —

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