Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2024, Vol. 40 ›› Issue (13): 27-35.doi: 10.11924/j.issn.1000-6850.casb2023-0860

Previous Articles     Next Articles

Molecular Advancements of Male Sterility in Pepper

XU Xiaomei1(), HENG Zhou1, WANG Hengming1, SUN Qidi2, XU Xiaowan1()   

  1. 1 Vegetable Research Institute, Guangdong Academy of Agriculture Sciences/Guangdong Key Laboratory for New Technology Research of Vegetables, Guangzhou 510640
    2 Maoming Maoshu Seed Technology Co., Ltd., Maoming, Guangdong 525000
  • Received:2023-12-14 Revised:2024-02-27 Online:2024-04-28 Published:2024-04-28

Abstract:

In order to have a more intuitive, systematic and in-depth understanding of the progress made in molecular research on male sterility in pepper, we sorted out the identified nuclear male sterility (NMS) genes in pepper and the development of molecular markers for some of the NMS genes, and highlighted the fine mapping of the NMS genes and the exploration of the candidate genes in recent years. Meanwhile, we reviewed the mitochondrial sterile genes related to cytoplasmic male sterility (CMS) and their associated molecular markers, as well as molecular markers developed for CMS fertility restoration genes, with a focus on the progress made in recent years in fine mapping of fertility restoration genes. Finally, it was pointed out that the fine mapping of NMS genes, identification of candidate genes and development of functional markers were the main focuses of NMS research in pepper, which could not only lay the foundation for the exploration of the mechanism of NMS in pepper, but also provided molecular markers for efficient use in breeding. Compared with NMS, CMS is more complex, characterized by diverse genetic mechanisms and more susceptible to environmental influences. Therefore, there is still a long way to go from the fine mapping of CMS restorer-of-fertility genes to the cloning of genes and the functional studies to understand the molecular mechanisms of CMS.

Key words: pepper, nuclear male sterility, cytoplasmic male sterility, fertility restoration gene, molecular marker