Conservation implications of asymmetric introgression and reproductive barriers in a rare primrose species

doi:10.1186/s12870-019-1881-0

	Conservation implications of asymmetric introgression and reproductive barriers in a rare primrose species
	Ma, Yongpeng 1; Marczewski, Tobias 1; Xue, Dan 2; Wu, Zhikun 1; Liao, Rongli 1; Sun, Weibang1 ; Marczewski, Jane 2
通讯作者	Ma, Yongpeng(mayongpeng@mail.kib.ac.cn) ; Sun, Weibang(wbsun@mail.kib.ac.cn)
	2019-06-28
发表期刊	BMC PLANT BIOLOGY
ISSN	1471-2229
卷号	19 页码:11
摘要	Background: Primula is a large genus of flowering herbs well known for their heterostyly. Currently few natural hybrids are known and reproductive barriers in this genus in the wild have received little attention. However, there is instance of hybridization between rare and widely-spread species, and conservation implications of such situation is poorly understood. In the present study, we investigated hybridization patterns and reproductive barriers between a wide spread species, Primula poissonii and a rare species P. anisodora, of which only three populations are currently known. Results: Pollinator-mediated reproductive isolation was strong between parental species but not significant between hybrids and parental species. Hand pollination experiments showed significant reduction of both fruit- and seed-set for heterospecific pollination as compared with conspecific pollination for both parental species. Furthermore, hybrids had higher fruit- and seed-set when pollinated with P. anisodora pollen as opposed to P. poissonii pollen. Microsatellites identified backcrosses to P. anisodora in two of the three populations of P. anisodora, and additionally more individuals of P. anisodora showed introgression from P. poissonii than vice versa. Conclusions: These results provide evidence for potential genetic swamping of the P. anisodora populations, which could pose a serious threat for this locally endemic species.
关键词	Asymmetric introgression Conservation implication Genetic swamping Heterostyly Reproductive isolation
DOI	10.1186/s12870-019-1881-0
收录类别	SCI
语种	英语
WOS记录号	WOS:000473151700003
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/67973
专题	资源植物与生物技术所级重点实验室
通讯作者	Ma, Yongpeng; Sun, Weibang
作者单位	1.Kunming Inst Bot, Yunnan Key Lab Integrat Conservat Plant Species E, Kunming 650201, Yunnan, Peoples R China 2.Yunnan Agr Univ, Kunming 650201, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Ma, Yongpeng,Marczewski, Tobias,Xue, Dan,et al. Conservation implications of asymmetric introgression and reproductive barriers in a rare primrose species[J]. BMC PLANT BIOLOGY,2019,19:11.
APA	Ma, Yongpeng.,Marczewski, Tobias.,Xue, Dan.,Wu, Zhikun.,Liao, Rongli.,...&Marczewski, Jane.(2019).Conservation implications of asymmetric introgression and reproductive barriers in a rare primrose species.BMC PLANT BIOLOGY,19,11.
MLA	Ma, Yongpeng,et al."Conservation implications of asymmetric introgression and reproductive barriers in a rare primrose species".BMC PLANT BIOLOGY 19(2019):11.

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