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Application of genome-wide association analysis in studying tea

FANG Wanping,LEI Xiaogang,YANG Bin,WANG Ya,MA Yuanchun
College of Horticulture，Nanjing Agricultural University，Nanjing 210095，China

Abstract Genome-wide association analysis（GWAS）is based on high-throughput sequencing tech⁃

nology，combined with bioinformatics and statistical methods，to identify genetic variants that regulate com⁃
plex traits at the genome-wide level.It is the most powerful and effective method to study the genetic varia⁃
tion of complex agronomic traits and diseases，and its core is to study the association between genetic varia⁃
tion and target traits.This review briefly introduces the basic principles，processes and influencing factors of
GWAS analysis.A series of progress made by GWAS in studying the tea beverage consumption，important
agronomic traits of tea trees，tea quality and the population structure of tea plant were summarized.Finally，

the problems encountered and the direction of development in the GWAS research of tea plant were dis⁃
cussed.It will provide a basis for using GWAS in further researches on the selection of tea consumers，the
genetics and breeding of tea plant.
Keywords tea plant；genome-wide association analysis（GWAS）；agronomic traits；tea consump⁃
tion；quality；breeding

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