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Genome-Wide Identification and Analysis of the MAPK and MAPKK Gene Families in Potato (Solanum tuberosum L.)

文献类型： 外文期刊

作者： Shang, Yutong 1 ; Luo, Xiaobo 1 ; Zhang, Heng 2 ; Chen, Mingjun 2 ; Yin, Wang 2 ; Cao, Zhenju 2 ; Deng, Renju 2 ; Li, Yan 1 ; Li, Fei 2 ;

作者机构： 1.Guizhou Univ, Minist Educ, Coll Life Sci,Inst Agro Bioengn, Collaborat Innovat Ctr Mt Ecol & Agro Bioenn CICME, Guiyang 550025, Peoples R China

2.Guizhou Prov Acad Agr Sci, Guizhou Inst Biotechnol, Guiyang 550003, Peoples R China

关键词： potato; MAPK; MAPKK; gene family; low-temperature stress

期刊名称：AGRONOMY-BASEL （ 影响因子：3.7； 五年影响因子：4.0 ）

ISSN：

年卷期： 2023 年 13 卷 1 期

页码：

收录情况： SCI

摘要： Mitogen-activated protein kinase (MAPK) is an important component of the signal transduction pathway, which plays important roles in regulating plant growth and development, and abiotic stress. Potato (Solanum tuberosum L.) is one of the most popular tuber crops in the world. Genome-wide identification and analysis of the MAPK and MAPKK gene family in potato is not clear. A total of 20 MAPK genes and 8 MAPKK genes were identified in the potato genome. A conservative motif analysis showed that the MAPK protein contained a typical TxY phosphorylation site, and the MAPKK protein contained a conservative characteristic motif S/T-x5-S/T. Phylogenetic analysis showed that potato MAPK (mitogen-activated protein kinase) and MAPKK (mitogen-activated protein kinase kinase) were similar to Arabidopsis, including four groups of members A, B, C and D. Gene structure and promoter sequence analysis showed that all 28 gene family members of potato Solanum tuberosum MAPK (StMAPK) and StMAPKK have coding regions (CDS), and family members in the same group have similar intron and exon compositions, and that most cis-acting elements upstream of gene promoters elements have related to stress response. Chromosome location analysis found that MAPKs were unevenly distributed on 11 chromosomes, while MAPKKs were only distributed on chromosomes Chr. 03 and Chr. 12. Collinearity analysis showed that StMAPKK3 and StMAPKK6 have the same common ancestors among potato, pepper, and tomato. qRT-PCR results showed that the relative expressions of StMAPK14 and StMAPKK2 were significantly upregulated under low-temperature stress. These results could provide new insights into the characteristics and evolution of the StMAPK and StMAPKK gene family and facilitate further exploration of the molecular mechanism responsible for potato abiotic stress responses.

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