文献类型：期刊文献

英文题名：Genetic Differentiation of Reintroduced Pere David's Deer (Elaphurus davidianus) Based on Population Genomics Analysis

作者：Zhang, Shumiao[1] Li, Chao[2] Li, Yiping[1] Chen, Qi[1] Hu, Defu[3] Cheng, Zhibin[1] Wang, Xiao[1] Shan, Yunfang[1] Bai, Jiade[1] Liu, Gang[2]

第一作者：Zhang, Shumiao

通信作者：Bai, JD[1];Liu, G[2]

机构：[1]Beijing Milu Ecol Res Ctr, Beijing, Peoples R China;[2]Chinese Acad Forestry, Inst Wetland Res, Beijing Key Lab Wetland Serv & Restorat, Beijing, Peoples R China;[3]Beijing Forestry Univ, Coll Ecol & Nat Conservat, Beijing, Peoples R China

年份：2021

卷号：12

外文期刊名：FRONTIERS IN GENETICS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000697293600001)】；

基金：This study was funded by Innovation Team Program of Beijing Academy of Science and Technology "Research on Genetic Resources Conservation and Fine Management of Milu" [IG201805N/C1 (newly added)].

语种：英文

外文关键词：Pere David's deer; reintroduction; genetic differentiation; demographic history; population genomics

摘要：The reintroduction is an important conservation tool to restore a species in its historically distribution area, but the rate of reintroduction success varies across species or regions due to different reasons. Genetic evaluation is important to the conservation management of reintroduced species. Conservation concerns relate to genetic threats for species with a small population size or severely historically bottle-necked species, such as negative consequences associated with loss of genetic diversity and inbreeding. The last 40years have seen a rapid increasing of population size for Pere David's deer (Elaphurus davidianus), which originated from a limited founder population. However, the genetic structure of reintroduced Pere David's deer has not been investigated in terms of population genomics, and it is still not clear about the evolutionary history of Pere David's deer and to what extent the inbreeding level is. Conservation genomics methods were used to reconstruct the demographic history of Pere David's deer, evaluate genetic diversity, and characterize genetic structure among 18 individuals from the captive, free-ranging and wild populations. The results showed that 1,456,457 single nucleotide polymorphisms (SNPs) were obtained for Pere David's deer, and low levels of genome-wide genetic diversity were observed in Pere David's deer compared with Red deer (Cervus elaphus) and Sika deer (Cervus nippon). A moderate population genetic differentiation was detected among three populations of Pere David's deer, especially between the captive population in Beijing Pere David's deer park and the free-ranging population in Jiangsu Dafeng National Nature Reserve. The effective population size of Pere David's deer started to decline similar to 25.8ka, and the similar levels of three populations' LD reflected the genetic impacts of long-term population bottlenecks in the Pere David's deer. The findings of this study could highlight the necessity of individual exchange between different facilities, and genetic management should generally be integrated into conservation planning with other management considerations.