Analysis on EST-SSR Markers Associated with Core Length in Cabbage

ACTA HORTICULTURAE SINICA ›› 2014, Vol. 41 ›› Issue (7): 1344-1354.

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Analysis on EST-SSR Markers Associated with Core Length in Cabbage

Online:2014-07-25 Published:2014-07-25

Abstract

Abstract: Forty EST-SSR markers were applied for the genetic structure analysis of a natural population comprised 100 cabbage inbred lines，and association analysis between markers and two agronomic traits on core length were subsequently performed using GLM（general linear model）and MLM（mixed linear model）programs of TASSEL3.0 software in this study. Population genetic structure analysis showed that 100 cabbage accessions were composed of 3 subpopulations，and high polymorphism and various degree of linkage disequilibrium were detected among EST-SSR loci. There were 7 alleles of 5 markers associated with core length，and 3 alleles of 2 markers associated with core length/vertical diameter of head，and 2 alleles associated simultaneously with two observed traits under GLM program. There were 4 alleles of 3 markers associated with core length，and 2 alleles of 1 marker associated with core length/vertical diameter of head，and 2 alleles associated simultaneously with two observed traits under MLM program. Furthermore，2 alleles of 1 marker associated with core length/vertical diameter ofhead and 4 alleles of 3 markers associated with core length were determined under GLM and MLM programs.

Key words: cabbage, EST-SSR, genetic diversity, population structure, association analysis

CLC Number:

S 635.1

SUN Peng-Peng, LIU Ji-Sheng, ZHANG Yang-Yong, FANG Zhi-Yuan, LIU Yu-Mei, YANG Li-Mei, GONG Yi-Qin, LIU Li-Wang, LI Zhan-Sheng, ZHUANG Mu. Analysis on EST-SSR Markers Associated with Core Length in Cabbage[J]. ACTA HORTICULTURAE SINICA, 2014, 41(7): 1344-1354.

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Analysis on EST-SSR Markers Associated with Core Length in Cabbage

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