Genetic and QTL Mapping Analysis of Bolting Time in Cabbage（Brassica oleracea）

doi:10.16420/j.issn.0513-353x.2019-0825

ACTA HORTICULTURAE SINICA ›› 2020, Vol. 47 ›› Issue (5): 974-982.doi: 10.16420/j.issn.0513-353x.2019-0825

• Research Notes • Previous Articles Next Articles

Genetic and QTL Mapping Analysis of Bolting Time in Cabbage（Brassica oleracea）

WANG Wuhong，WANG Jinglei，LI Biyuan，WEI Qingzhen，HU Tianhua，HU Haijiao，and BAO Chonglai*

Institute of Vegetables，Zhejiang Academy of Agricultural Sciences，Hangzhou 310021，China

Online:2020-05-25 Published:2020-05-25

Abstract

Abstract: We constructed the populations of F1，BC1，BC2，and F2 by using cabbage lines‘S-1’（early flower）and‘G-1’（late flower）as parents and adopted the plant quantitative trait major gene + polygenic mixed genetic model method to analysis the genetic model of bolting time of cabbage. Besides，we used SLAF-BSA technology to mapping the bolting time QTLs. The results showed that the bolting time fitted the model of two additive-dominant-epistatic major genes and additive-dominance polygenes. The average heritability of major genes plus polygenes was 93.41%，which indicated that bolting trait of cabbage was mainly affected by major gene inheritance. Moreover，two QTLs were detected，which located on chromosome C02 2.31–3.09 Mb and 33.57–34.40 Mb，respectively，with a total length of 1.61 Mb.

Key words: cabbage, Brassica oleracea, bolting, genetic analysis, QTL mapping

CLC Number:

S 635.1

WANG Wuhong，WANG Jinglei，LI Biyuan，WEI Qingzhen，HU Tianhua，HU Haijiao，and BAO Chonglai*. Genetic and QTL Mapping Analysis of Bolting Time in Cabbage（Brassica oleracea）[J]. ACTA HORTICULTURAE SINICA, 2020, 47(5): 974-982.

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Genetic and QTL Mapping Analysis of Bolting Time in Cabbage（Brassica oleracea）

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