Genetic Divergence and Biogeographical Patterns in Amentotaxus argotaenia Species Complex
文献类型：期刊论文
| 作者 | Ge, Xue-Jun1; Hung, Kuo-Hsiang2; Ko, Ya-Zhu3; Hsu, Tsai-Wen4; Gong, Xun5 ; Chiang, Tzen-Yuh6; Chiang, Yu-Chung3
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| 刊名 | PLANT MOLECULAR BIOLOGY REPORTER
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| 出版日期 | 2015-04-01 |
| 卷号 | 33期号:2页码:264-280 |
| 关键词 | Amentotaxus Gene flow Hybridization Paraphyly Past fragmentation Species divergence |
| 通讯作者 | Chiang,YC (reprint author),Natl Sun Yat Sen Univ,Dept Biol Sci,Kaohsiung 80424,Taiwan. ; tychiang@mail.ncku.edu.tw ; yuchung@mail.nsysu.edu.tw |
| 英文摘要 | The Amentotaxus argotaenia (Taxaceae) species complex is comprised of four relict and endangered gymnosperms. Amentotaxus argotaenia and A. yunnanensis are scattered throughout South and Central China, and A. formosana, and A. poilanei are restricted to Taiwan and Vietnam. In the present study, we examined genetic divergence and biogeographical patterns in the species complex based on chloroplast DNA atpI-atpH and rpS16-trnK intergenic spacers, the mitochondrial DNA nad1 intron, and microsatellite markers. Genealogical analyses revealed systematic inconsistencies between organellar DNA markers, with paraphyletic species inferred based on cpDNA, versus a monophyletic A. formosana, and clustering of A. poilanei within A. yunnanensis at mtDNA. AMOVA revealed that most organellar DNA variants resided among species and populations, a pattern also supported by clustering with STRUCTURE analyses on microsatellites. Higher levels of genetic diversity in the Yongxin population of A. argotaenia reflected features of a refugium. Most speciation events were rather recent, with divergence no earlier than 2.50 MYA, although many ancient lineages derived 4.12-13.84 MYA were maintained within species. Significant genetic structuring within A. argotaenia was detected among three geographical regions-a phylogeographical pattern likely attributable to past fragmentations. In contrast to paraphyletic A. argotaenia based on the maintenance of ancestral polymorphisms, interspecific hybridization likely contributed to polyphyly in A. yunnanensis. Furthermore, despite the low likelihood of recurrent gene flow due to geographical isolation, IM analyses revealed continued interspecific gene flow after species divergence, reflecting a parapatric speciation model. |
| 学科主题 | Biochemical Research Methods; Plant Sciences |
| 类目[WOS] | Biochemical Research Methods ; Plant Sciences |
| 研究领域[WOS] | Biochemistry & Molecular Biology ; Plant Sciences |
| 关键词[WOS] | MITOCHONDRIAL-DNA ; MICROSATELLITE LOCI ; STATISTICAL TESTS ; POPULATION-GROWTH ; ICE AGES ; PHYLOGEOGRAPHY ; CHLOROPLAST ; CHINA ; COALESCENT ; MUTATIONS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000350665000008 |
| 源URL | [http://ir.kib.ac.cn/handle/151853/20634]  |
| 专题 | 昆明植物研究所_中国科学院东亚植物多样性与生物地理学重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Plant Resources Conservat & Sustainable U, South China Bot Garden, Guangzhou, Guangdong, Peoples R China 2.Pingtung Univ Sci & Technol, Grad Inst Bioresources, Pingtung, Taiwan 3.Natl Sun Yat Sen Univ, Dept Biol Sci, Kaohsiung 80424, Taiwan 4.Taiwan Endem Species Res Inst, Nantou, Taiwan 5.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming, Peoples R China 6.Natl Cheng Kung Univ, Dept Life Sci, Tainan 70101, Taiwan |
| 推荐引用方式 GB/T 7714 | Ge, Xue-Jun,Hung, Kuo-Hsiang,Ko, Ya-Zhu,et al. Genetic Divergence and Biogeographical Patterns in Amentotaxus argotaenia Species Complex[J]. PLANT MOLECULAR BIOLOGY REPORTER,2015,33(2):264-280. |
| APA | Ge, Xue-Jun.,Hung, Kuo-Hsiang.,Ko, Ya-Zhu.,Hsu, Tsai-Wen.,Gong, Xun.,...&Chiang, Yu-Chung.(2015).Genetic Divergence and Biogeographical Patterns in Amentotaxus argotaenia Species Complex.PLANT MOLECULAR BIOLOGY REPORTER,33(2),264-280. |
| MLA | Ge, Xue-Jun,et al."Genetic Divergence and Biogeographical Patterns in Amentotaxus argotaenia Species Complex".PLANT MOLECULAR BIOLOGY REPORTER 33.2(2015):264-280. |
入库方式： OAI收割
来源：昆明植物研究所
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