The genome of Prunus humilis provides new insights to drought adaption and population diversity
文献类型： 外文期刊
作者： Wang, Yi 1 ; Xie, Jun 2 ; Zhang, Hongna 3 ; Li, Weidong 4 ; Wang, Zhanjun 5 ; Li, Huayang 1 ; Tong, Qian 1 ; Qiao, Gaixia 2 ; Liu, Yujuan 2 ; Tian, Ying 2 ; Wei, Yongzan 6 ; Li, Ping 4 ; Wang, Rong 2 ; Chen, Weiping 7 ; Liang, Zhengchang 1 ; Xu, Meilong 7 ;
作者机构： 1.Chinese Acad Sci, Inst Bot, Beijing Key Lab Grape Sci & Enol, Lab Plant Resources, Beijing 100093, Peoples R China
2.State Key Lab Seedling Bioengn, Yinchuan 750004, Ningxia, Peoples R China
3.Hainan Univ, Haikou 570228, Hainan, Peoples R China
4.Beijing Univ Chinese Med, Sch Chinese Mat Med, Beijing 102488, Peoples R China
5.Ningxia Acad Agr & Forestry Sci, Inst Desertificat Control, Yinchuan 750012, Ningxia, Peoples R China
6.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Key Lab Biol & Genet Resources Trop Crops, Minist Agr, Haikou 571101, Hainan, Peoples R China
7.Ningxia Acad Agr & Forestry Sci, Inst Hort, Yinchuan 750012, Ningxia, Peoples R China
关键词： P; humilis; genome; drought adaption; population diversity
期刊名称：DNA RESEARCH （ 影响因子：4.477； 五年影响因子：5.358 ）
ISSN： 1340-2838
年卷期： 2022 年 29 卷 4 期
页码：
收录情况： SCI
摘要： Prunus humilis (2n = 2x = 16) is a dwarf shrub fruit tree native to China and distributed widely in the cold and arid northern region. In this study, we obtained the whole genome sequences of P. humilis by combining Illumina, PacBio and HiC sequencing technologies. This genome was 254.38 Mb long and encodes 28,301 putative proteins. Phylogenetic analysis indicated that P. humilis shares the same ancestor with Prunus mume and Prunus armeniaca at similar to 29.03 Mya. Gene expansion analysis implied that the expansion of WAX-related and LEA genes might be associated with high drought tolerance of P. humilis and LTR maybe one of the driver factors for the drought adaption by increase the copy number of LEAs. Population diversity analysis among 20 P. humilis accessions found that the genetic diversity of P. humilis populations was limited, only 1.40% base pairs were different with each other, and more wild resources need to be collected and utilized in the breeding and improvement. This study provides new insights to the drought adaption and population diversity of P. humilis that could be used as a potential model plant for horticultural research.
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