Natural Hybridization and Introgression between Ligularia cymbulifera and L. tongolensis (Asteraceae, Senecioneae) in Four Different Locations
Yu, Jiaojun1,2; Kuroda, Chiaki3; Gong, Xun1; Gong,X (reprint author),Chinese Acad Sci,Kunming Inst Bot,Key Lab Plant Divers & Biogeog East Asia,Kunming,Peoples R China.; gongxun@mail.kib.ac.cn
2014-12-31
发表期刊PLOS ONE
卷号9期号:12页码:e115167
摘要Natural hybridization has been considered to represent an important factor influencing the high diversity of the genus Ligularia Cass. in the Hengduan Mountains, China. Natural hybridization has been confirmed to occur frequently in Ligularia. To date, however, it has been demonstrated only within a single population. In this paper, we present evidence of natural hybridization in Ligularia from four different locations. The internal transcribed spacer (ITS) region of the nuclear ribosomal DNA and three chloroplast intergenic spacers (trnK-rps16, trnL-rpl32 and trnQ-5'rps16) of 149 accessions of putative hybrids and their putative parents (L. cymbulifera and L. tongolensis) were analyzed for evidence of hybridization. The ITS data clearly distinguished two putative parental species and sympatric L. vellerea and supported the hypothesis that those morphological intermediates were products of natural hybridization between L. cymbulifera and L. tongolensis. Moreover, several identified morphological parents were actual introgressed products. Because of hybridization and introgression, chloroplast DNA sequences generated a poorly resolved network. The present results indicate that varying degrees of hybridization and introgression occur differently depending on the habitat context. We conclude that gene flow caused by natural hybridization in Ligularia indeed plays an important role in the species diversity.
资助信息National Science Foundation of China [31470336]
学科领域Multidisciplinary Sciences
DOI10.1371/journal.pone.0115167
收录类别SCI
语种英语
WOS研究方向Science & Technology - Other Topics
WOS类目Multidisciplinary Sciences
WOS记录号WOS:000347119100030
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/19379
专题资源植物与生物技术所级重点实验室
通讯作者Gong,X (reprint author),Chinese Acad Sci,Kunming Inst Bot,Key Lab Plant Divers & Biogeog East Asia,Kunming,Peoples R China.; gongxun@mail.kib.ac.cn
作者单位1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Rikkyo Univ, Dept Chem, Tokyo 171, Japan
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Yu, Jiaojun,Kuroda, Chiaki,Gong, Xun,et al. Natural Hybridization and Introgression between Ligularia cymbulifera and L. tongolensis (Asteraceae, Senecioneae) in Four Different Locations[J]. PLOS ONE,2014,9(12):e115167.
APA Yu, Jiaojun,Kuroda, Chiaki,Gong, Xun,Gong,X ,&gongxun@mail.kib.ac.cn.(2014).Natural Hybridization and Introgression between Ligularia cymbulifera and L. tongolensis (Asteraceae, Senecioneae) in Four Different Locations.PLOS ONE,9(12),e115167.
MLA Yu, Jiaojun,et al."Natural Hybridization and Introgression between Ligularia cymbulifera and L. tongolensis (Asteraceae, Senecioneae) in Four Different Locations".PLOS ONE 9.12(2014):e115167.
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