Genome-Wide Analysis of the NBS-LRR Gene Family and SSR Molecular Markers Development in Solanaceae
文献类型： 外文期刊
作者： Song, Xiaoming 1 ; Li, Chunjin 3 ; Liu, Zhuo 3 ; Zhou, Rong 4 ; Shen, Shaoqin 3 ; Yu, Tong 3 ; Jia, Li 1 ; Li, Nan 3 ;
作者机构： 1.Anhui Acad Agr Sci, Inst Hort, Key Lab Hort Crop Germplasm Innovat & Utilizat, Coconstruct Minist & Prov, Hefei 230001, Peoples R China
2.Anhui Acad Agr Sci, Inst Vegetables, Hefei 230001, Peoples R China
3.North China Univ Sci & Technol, Sch Life Sci, Tangshan 063210, Peoples R China
4.Nanjing Agr Univ, Coll Hort, Nanjing 210095, Peoples R China
5.Aarhus Univ, Dept Food Sci, DK-8200 Aarhus, Denmark
关键词：
Solanaceae;
期刊名称：HORTICULTURAE （ 影响因子：3.0； 五年影响因子：3.2 ）
ISSN：
年卷期： 2024 年 10 卷 12 期
页码：
收录情况： SCI
摘要： The Solanaceae family occupies a significant position, and the study of resistance genes within this family is extremely valuable. Therefore, our goal is to examine disease resistance genes based on the high-quality representative genomes of Solanaceae crops, and to develop corresponding Simple Sequence Repeat (SSR) molecular markers. Among nine representative Solanaceae species, we identified 819 NBS-LRR genes, which were further divided into 583 CC-NBS-LRR (CNL), 54 RPW8-NBS-LRR (RNL), and 182 TIR-NBS-LRR (TNL) genes. Whole genome duplication (WGD) has played a very important role in the expansion of NBS-LRR genes in Solanaceae crops. Gene structure analysis showed the striking similarity in the conserved motifs of NBS-LRR genes, which suggests a common ancestral origin, followed by evolutionary differentiation and amplification. Gene clustering and events like rearrangement within the NBS-LRR family contribute to their scattered chromosomal distribution. Our findings reveal that the majority of NBS-LRR family genes across all examined species predominantly localize to chromosomal termini. The analysis indicates the significant impact of the most recent whole genome triplication (WGT) on the NBS-LRR family genes. Moreover, we constructed Protein-Protein Interaction (PPI) networks for all 819 NBS-LRR genes, identifying 3820 potential PPI pairs. Notably, 97 genes displayed clear interactive relationships, highlighting their potential role in disease resistance processes. A total of 22,226 SSRs were detected from all genes of nine Solanaceae species. Among these SSRs, we screened 43 NBS-LRR-associated SSRs. Our study lays the foundation for further exploration into SSR development and genetic mapping related to disease resistance in Solanaceae species.
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