Maintenance of species boundaries in three sympatric Ligularia (Senecioneae, Asteraceae) species
Zhang, Ningning1,2; Ma, Yongpeng1; Folk, Ryan A.3; Yu, Jiaojun1; Pan, Yuezhi1; Gong, Xun1
2018-10-01
Source PublicationJOURNAL OF INTEGRATIVE PLANT BIOLOGY
ISSN1672-9072
Volume60Issue:10Pages:986-999
AbstractThe key process in speciation concerns the formation and maintenance of reproductive isolating barriers between diverging lineages. Although species boundaries are frequently investigated between two species across many taxa, reproductive isolating barriers among multiple species (>2) that would represent the most common phenomenon in nature, remain to be clarified. Here, we use double digest restriction-site associated DNA (ddRAD) sequencing to examine patterns of hybridization at a sympatric site where three Ligularia species grow together and verify whether those patterns contribute to the maintenance of boundaries among species. The results based on the RAD SNP datasets indicated hybridization Ligularia cyathiceps x L. duciformis and L. duciformis x L. yunnanensis were both restricted to F(1)s plus a few first-generation backcrosses and no gene introgression were identified, giving rise to strong reproductive isolation among hybridizing species. Moreover, hybrid swarm simulation, using HYBRIDLAB, indicated the RAD SNP datasets had sufficient discriminatory power for accurate hybrid detection. We conclude that parental species show strong reproductive isolation and they still maintain species boundaries, which may be the key mechanism to maintain species diversity of Ligularia in the eastern Qinghai-Tibetan Plateau and adjacent areas. Moreover, this study highlights the effectiveness of RAD sequencing in hybridization studies.
DOI10.1111/jipb.12674
Language英语
WOS Research AreaBiochemistry & Molecular Biology ; Plant Sciences
WOS SubjectBiochemistry & Molecular Biology ; Plant Sciences
WOS IDWOS:000446451000006
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/62774
Collection中国科学院东亚植物多样性与生物地理学重点实验室
Corresponding AuthorGong, Xun
Affiliation1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Plant Divers & Biogeog East Asia, Kunming 650201, Yunnan, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Univ Florida, Florida Museum Nat Hist, Gainesville, FL 32611 USA
Recommended Citation
GB/T 7714
Zhang, Ningning,Ma, Yongpeng,Folk, Ryan A.,et al. Maintenance of species boundaries in three sympatric Ligularia (Senecioneae, Asteraceae) species[J]. JOURNAL OF INTEGRATIVE PLANT BIOLOGY,2018,60(10):986-999.
APA Zhang, Ningning,Ma, Yongpeng,Folk, Ryan A.,Yu, Jiaojun,Pan, Yuezhi,&Gong, Xun.(2018).Maintenance of species boundaries in three sympatric Ligularia (Senecioneae, Asteraceae) species.JOURNAL OF INTEGRATIVE PLANT BIOLOGY,60(10),986-999.
MLA Zhang, Ningning,et al."Maintenance of species boundaries in three sympatric Ligularia (Senecioneae, Asteraceae) species".JOURNAL OF INTEGRATIVE PLANT BIOLOGY 60.10(2018):986-999.
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