Comparative Transcriptome Analysis between Cytoplasmic Male-sterile Line and Its Maintainer During the Floral Bud Development of Pepper
文献类型: 外文期刊
作者: Lv, Junheng 1 ; Liu, Zhoubin 1 ; Liu, Yuhua 1 ; Ou, Lijun 1 ; Deng, Minghua 3 ; Wang, Jing 1 ; Song, Jingshuang 1 ; Ma, Y 1 ;
作者机构: 1.Hunan Univ, Longping Branch, Grad Sch, Changsha 410125, Peoples R China
2.Hunan Acad Agr Sci, Vegetable Inst, Changsha 410125, Peoples R China
3.Yunnan Agr Univ, Coll Landscape & Hort, Kunming 650201, Yunnan, Peoples R China
关键词: pepper; capsicum annuum; cytoplasmic male sterility; comparative transcriptome analysis; DEGs
期刊名称:HORTICULTURAL PLANT JOURNAL ( 影响因子:3.032; )
ISSN: 2095-9885
年卷期: 2020 年 6 卷 2 期
页码:
收录情况: SCI
摘要: The male-sterile line has been largely used in the hybrid seed production of pepper, which can effectively improve the efficiency of hybrid seed production. However, the formation mechanism of male sterility in pepper remains unclear. In the present study, we compared the gene expression patterns between pepper cytoplasmic male sterile line 9704A and its maintainer 9704B during floral bud development using RNA sequencing technology. A total of 547 976 and 2 416 Differentially Expressed Genes (DEGs) were identified in the stage S1, S2 and S3, respectively, and more than 70% of the DEGs were down-regulated in the sterile line. Gene Ontology (GO), and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses were performed to further understand the functions of these identified DEGs. The results showed that the DEGs were mainly enriched in pathways of starch and sucrose metabolism, pentose and glucuronate interconversions. A number of genes, such as MS1, PME5, ATPB, and lots of transcription factors were found down-regulated in the sterile line, and we also identified a series of genes with large differences in expression patterns between sterile line and maintainer line. Collectively, our findings laid a foundation for further molecular breeding in pepper and provided new insights into its mechanism underlying the male sterility.
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