Genetic Analysis and Fine Mapping of Spontaneously Mutated Male Sterility Gene in Chinese Cabbage (<i>Brassica rapa</i> L. ssp. <i>pekinensis</i>).

ABSTRACT: Chinese cabbage (Brassica rapa L. ssp. pekinensis), an important traditional vegetable indigenous to China, is a typical cross-pollinated Brassica crop exhibiting pronounced heterosis. However, its small flower organs make artificial pollination for hybrid seed production highly challenging. The use of male-sterile lines has emerged as a crucial approach in hybrid seed production. Therefore, understanding the genetic and molecular mechanisms underlying male sterility in Chinese cabbage holds profound theoretical and economic importance and is pivotal for advancing Chinese cabbage crossbreeding. Here, cytological comparative analysis of anthers from sterile line 366-2S and fertile line 366-2F revealed abnormalities in 366-2S during the late tetrad stage, including delayed tape

SUBMITTER: Xu Q 

PROVIDER: S-EPMC11902244 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature