Introgression between Betula tianshanica and Betula microphylla and its implications for conservation

doi:10.1002/ppp3.10182

KIB OpenIR

	Introgression between Betula tianshanica and Betula microphylla and its implications for conservation
	Ding,Junyi ; Hua,Donglai ; Borrell,James S.; Buggs,Richard J. A.; Wang,Luwei ; Wang,Feifei ; Li,Zheng ; Wang,Nian
	2021
发表期刊	PLANTS PEOPLE PLANET
ISSN	2572-2611
卷号	3 期号:4 页码:363-374
摘要	Societal Impact Statement In rapidly changing environments species conservation can be hindered by uncertainties in distinguishing closely related species. Cryptic ongoing hybridization can add further uncertainty and could be beneficial or destructive. Here, we show that a declining birch tree species is hybridizing with a more widespread relative in the Junggar basin, NW China, and their hybrids have been previously named as rare sub-species. Given the declining numbers of this birch tree, we suggest that conservation effort should aim to slow the rate of anthropogenic habitat loss at this hybrid zone and preserve its pure populations away from the hybrid zone. In areas where closely related species meet, the possibility that they may hybridize must be taken into account by conservationists. Hybridization may have positive or negative consequences for the long-term future of species. If present, its dynamics need to be understood. Betula microphylla is a declining wetland tree species in NW China that forms a continuum of leaf morphology and geographic distribution with its relative Betula tianshanica. We use ecological niche models to predict the distribution of B. microphylla and B. tianshanica. We use restriction site-associated DNA sequencing and SSRs to resolve their genetic structure and patterns of allele sharing. Ecological niche models predict an expansion of the range of B. tianshanica into that of B. microphylla since the Last Glacial Maximum and the contraction of B. microphylla's range in the future. Genetic data suggest that the two species have hybridized in the Junggar basin and in the Tianshan Mountains where the two species have co-occurred in the recent past and in the Altay Mountains where there are no records of B. tianshanica occurrence. Rare populations previously identified as sub-species of B. microphylla were shown to be of hybrid origin. Further research is needed on the costs and benefits of hybridization between B. microphylla and B. tianshanica in the changing environment of NW China. Our current data suggest that conservation effort should aim to slow the rate of anthropogenic habitat loss at the hybrid zone in the Junggar basin and preserve pure populations far away from the hybrid zone in the Altay Mountains.
关键词	Betula microphylla birch conservation ecological niche modelling genetic structure hybridization introgression species record MICROSATELLITE MARKERS DWARF BIRCH HYBRIDIZATION EVOLUTION FRAMEWORK SPECIATION DISCOVERY PUBESCENS TRANSPORT SEQUENCE
DOI	10.1002/ppp3.10182
WOS记录号	WOS:000669390800007
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/73248
专题	中国科学院昆明植物研究所
作者单位	1.Shandong Agr Univ, State Forestry & Grassland Adm Key Lab Silvicultu, Coll Forestry, Tai An 271018, Shandong, Peoples R China 2.Shandong Agr Univ, Coll Forestry, Mt Tai Forest Ecosyst Res Stn State Forestry & Gr, Tai An, Shandong, Peoples R China 3.Xinjiang Acad Agr & Reclamat Sci, Shihezi, Peoples R China 4.Shihezi Univ, Coll Life Sci, Shihezi, Peoples R China 5.Borrell, James S.; Buggs, Richard J. A.] Royal Bot Gardens Kew, Richmond, Surrey, England 6.Buggs, Richard J. A.] Queen Mary Univ London, Sch Biol & Chem Sci, London, England 7.Beijing Normal Univ, Coll Life Sci, Beijing, Peoples R China 8.Shandong Agr Univ, State Key Lab Crop Biol, Tai An, Shandong, Peoples R China 9.Chinese Acad Sci, Kunming Inst Bot, Yunnan Key Lab Integrat Conservat Plant Species E, Kunming, Yunnan, Peoples R China
推荐引用方式 GB/T 7714	Ding,Junyi,Hua,Donglai,Borrell,James S.,et al. Introgression between Betula tianshanica and Betula microphylla and its implications for conservation[J]. PLANTS PEOPLE PLANET,2021,3(4):363-374.
APA	Ding,Junyi.,Hua,Donglai.,Borrell,James S..,Buggs,Richard J. A..,Wang,Luwei.,...&Wang,Nian.(2021).Introgression between Betula tianshanica and Betula microphylla and its implications for conservation.PLANTS PEOPLE PLANET,3(4),363-374.
MLA	Ding,Junyi,et al."Introgression between Betula tianshanica and Betula microphylla and its implications for conservation".PLANTS PEOPLE PLANET 3.4(2021):363-374.