| Phylogenomic analysis reveals multiple evolutionary origins of selfing from outcrossing in a lineage of heterostylous plants | |
Zhong, Li1,2; Barrett, Spencer C. H.3; Wang, Xin-Jia1,2; Wu, Zhi-Kun4; Sun, Hua-Ying1; Li, De-Zhu5 ; Wang, Hong1; Zhou, Wei5
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| Corresponding Author | Wang, Hong(wanghong@mail.kib.ac.cn) ; Zhou, Wei(zhouwei@mail.kib.ac.cn) |
| 2019-11-01 | |
| Source Publication | NEW PHYTOLOGIST
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| ISSN | 0028-646X |
| Volume | 224Issue:3Pages:1290-1303 |
| Abstract | Evolutionary transitions from outcrossing to selfing often occur in heterostylous plants. Selfing homostyles originate within distylous populations and frequently evolve to become reproductively isolated species. We investigated this process in 10 species of Primula section Obconicolisteri using phylogenomic approaches and inferred how often homostyly originated from distyly and its consequences for population genetic diversity and floral trait evolution. We estimated phylogenetic relationships and reconstructed character evolution using the whole plastome comprised of 76 protein-coding genes. To investigate mating patterns and genetic diversity we screened 15 microsatellite loci in 40 populations. We compared floral traits among distylous and homostylous populations to determine how phenotypically differentiated homostyles were from their distylous ancestors. Section Obconicolisteri was monophyletic and we estimated multiple independent transitions from distyly to homostyly. High selfing rates characterised homostylous populations and this was associated with reduced genetic diversity. Flower size and pollen production were reduced in homostylous populations, but pollen size was significantly larger in some homostyles than in distylous morphs. Repeated transitions to selfing in section Obconicolisteri are likely to have been fostered by the complex montane environments that species occupy. Unsatisfactory pollinator service is likely to have promoted reproductive assurance in homostyles leading to subsequent population divergence through isolation. |
| Keyword | floral evolution genetic diversity heterostyly homostyly mating systems phylogenomics Primula selfing |
| DOI | 10.1111/nph.15905 |
| Indexed By | SCI ; SCI |
| Language | 英语 |
| WOS ID | WOS:000491130900028 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.kib.ac.cn/handle/151853/70914 |
| 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 Author | Wang, Hong; Zhou, Wei |
| Affiliation | 1.Chinese Acad Sci, Kunming Inst Bot, CAS Key Lab Plant Divers & Biogeog East Asia, 132 Lanhei Rd, Kunming 650201, Yunnan, Peoples R China 2.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China 3.Univ Toronto, Dept Ecol & Evolutionary Biol, Toronto, ON M5S 3B2, Canada 4.Guiyang Univ Tradit Chinese Med, Dept Pharm, Guiyang 550002, Guizhou, Peoples R China 5.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Plant Germplasm & Genom Ctr, 132 Lanhei Rd, Kunming 650201, Yunnan, Peoples R China |
| Recommended Citation GB/T 7714 | Zhong, Li,Barrett, Spencer C. H.,Wang, Xin-Jia,et al. Phylogenomic analysis reveals multiple evolutionary origins of selfing from outcrossing in a lineage of heterostylous plants[J]. NEW PHYTOLOGIST,2019,224(3):1290-1303. |
| APA | Zhong, Li.,Barrett, Spencer C. H..,Wang, Xin-Jia.,Wu, Zhi-Kun.,Sun, Hua-Ying.,...&Zhou, Wei.(2019).Phylogenomic analysis reveals multiple evolutionary origins of selfing from outcrossing in a lineage of heterostylous plants.NEW PHYTOLOGIST,224(3),1290-1303. |
| MLA | Zhong, Li,et al."Phylogenomic analysis reveals multiple evolutionary origins of selfing from outcrossing in a lineage of heterostylous plants".NEW PHYTOLOGIST 224.3(2019):1290-1303. |
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| nph.15905.pdf（1748KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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