Population Genomic Analysis of Endemic Wild Wine Grapes in China
Grapes are an important economic plant in China,and wine grapes are an important part of the grape industry.In this study,whole genome resequencing data of 34 wine grapes were used to study the genetic structure,genetic diversity,and population demo-graphic history among populations of three endemic wild wine grapes(Vitis amurensis,Vitis davidii and Vitis heyneana)in China,screen selection signals through population genetics,and discover important germplasm genes unique to China's wild wine grapes.The population structure shows populations gather into four branches.Compared with the main cultivated wine grapes in China,the three wild wine grape populations have lower diversities,and are all affected by the last glacial period in East Asia,resulting in lower effec-tive population size.Relevant wild germplasm resources need to be further protected and collected.By mapping the overlap of selected regions of Chinese wild wine grapes,272 selected genes of Chinese wild wine grapes were identified in this study.These genes are en-riched in grape sexual reproduction,pollen formation,starch and sucrose metabolism,autophagy and other functions or pathways,which can provide important breeding basis for cross,disease resistance and wine flavor of wine grape in the future.These genes may be related to the unique growth and development process of Chinese wild grapes that have been affected by the local environment for a long time.This study provides important theoretical basis for the protection and breeding application of Chinese native wild wine grapes.
NETL
NSTL
万方数据
