基于基因组重测序的栗属种质资源遗传特性分析

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中图分类号：S664.2 文献标志码：A 文章编号：1002-2910（2025）02-0011-08

Analysis of the genetic characteristics of Castanea germplasms based on genome resequencing

WANG Jinping1， TIAN Shoule1， CAI Gongzhan2， SUN Xiaoli1， TAO Diyang³， SHEN Guangning1* （1.Shandong Institute of Pomology，Tai'an，Shandong 2710oo， China; 2.Shandong Shangnong Agricultural Technology Co.，Ltd.，Heze，Shandong，China;3.Culaishan Forest Farm ofTai'an City，Tai'an， Shandong ， China）

Abstract： In this study， genome resequencing technology was employed to conduct an analysis of the genetic characteristics of a total of 180 Castanea germplasms，which included Chinese chestnut （Castanea molissima） cultivars from 16 provinces in China， as wellas European chestnut （Castanea sativa） and Japanese chestnut （Castanea crenata）. As a result， 48 374 108 genetic variation sites were successfully identified. According to the analysis of these variation sites，the l80 cultivars could be classified into eight major groups. There was a phenomenon of gene introgresson among different groups. The population dynamic changes of Chinese chestnut， European chestnut， and Japanese chestnut during the evolutionary process were significantly different. The study also discovered the gene flow of the Chinese chestnut populations from Beijing to Shandong. However， the study has limitations such as uneven distribution of the sample size and limited analysis dimensions. In the future， it is necessary to expand the sample scope and conduct in-depth research by integrating multi-omics approaches.

Key words： chestnut; germplasms; genome re-sequencing; genetic characteristics; population structure; gene flow

板栗（CastaneamollissimaBlume）在中国农林产业与生态建设中占据重要地位[1]。（剩余8362字）