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马铃薯 KFB 家族成员的全基因组鉴定、进化和功能分析。

Genome-wide identification, evolutionary and functional analyses of KFB family members in potato.

机构信息

College of life sciences, Shanxi Agricultural University, Taigu, 030801, Shanxi, China.

College of Agriculture, Shanxi Agricultural University, Taigu, 030801, Shanxi, China.

出版信息

BMC Plant Biol. 2022 May 2;22(1):226. doi: 10.1186/s12870-022-03611-y.

DOI:10.1186/s12870-022-03611-y
PMID:35501691
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9063267/
Abstract

BACKGROUND

Kelch repeat F-box (KFB) proteins play vital roles in the regulation of multitudinous biochemical and physiological processes in plants, including growth and development, stress response and secondary metabolism. Multiple KFBs have been characterized in various plant species, but the family members and functions have not been systematically identified and analyzed in potato.

RESULTS

Genome and transcriptome analyses of StKFB gene family were conducted to dissect the structure, evolution and function of the StKFBs in Solanum tuberosum L. Totally, 44 StKFB members were identified and were classified into 5 groups. The chromosomal localization analysis showed that the 44 StKFB genes were located on 12 chromosomes of potato. Among these genes, two pairs of genes (StKFB15/16 and StKFB40/41) were predicted to be tandemly duplicated genes, and one pair of genes (StKFB15/29) was segmentally duplicated genes. The syntenic analysis showed that the KFBs in potato were closely related to the KFBs in tomato and pepper. Expression profiles of the StKFBs in 13 different tissues and in potato plants with different treatments uncovered distinct spatial expression patterns of these genes and their potential roles in response to various stresses, respectively. Multiple StKFB genes were differentially expressed in yellow- (cultivar 'Jin-16'), red- (cultivar 'Red rose-2') and purple-fleshed (cultivar 'Xisen-8') potato tubers, suggesting that they may play important roles in the regulation of anthocyanin biosynthesis in potato.

CONCLUSIONS

This study reports the structure, evolution and expression characteristics of the KFB family in potato. These findings pave the way for further investigation of functional mechanisms of StKFBs, and also provide candidate genes for potato genetic improvement.

摘要

背景

Kelch 重复 F-box（KFB）蛋白在植物的众多生化和生理过程的调节中发挥着重要作用，包括生长和发育、应激反应和次生代谢。在各种植物物种中已经鉴定出多个 KFB，但在马铃薯中尚未系统地鉴定和分析该家族成员及其功能。

结果

通过对 StKFB 基因家族的基因组和转录组分析，解析了 StKFB 在马铃薯中的结构、进化和功能。总共鉴定出 44 个 StKFB 成员，并分为 5 组。染色体定位分析表明，44 个 StKFB 基因位于马铃薯的 12 条染色体上。在这些基因中，两对基因（StKFB15/16 和 StKFB40/41）被预测为串联重复基因，一对基因（StKFB15/29）为片段重复基因。共线性分析表明，马铃薯中的 KFB 与番茄和辣椒中的 KFB 密切相关。在 13 种不同组织和不同处理的马铃薯植株中进行的 StKFB 表达谱分析揭示了这些基因的不同空间表达模式及其在应对各种胁迫中的潜在作用。多个 StKFB 基因在黄肉（品种‘Jin-16’）、红肉（品种‘Red rose-2’）和紫肉（品种‘Xisen-8’）马铃薯块茎中差异表达，表明它们可能在调控马铃薯花青素生物合成中发挥重要作用。

结论

本研究报告了马铃薯 KFB 家族的结构、进化和表达特征。这些发现为进一步研究 StKFB 的功能机制铺平了道路，并为马铃薯遗传改良提供了候选基因。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3748/9063267/22dc60812e1a/12870_2022_3611_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3748/9063267/3b5a9214243a/12870_2022_3611_Fig1_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3748/9063267/bb2861369dcb/12870_2022_3611_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3748/9063267/19739ab91bb2/12870_2022_3611_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3748/9063267/0d6729f7079f/12870_2022_3611_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3748/9063267/e44014e2db96/12870_2022_3611_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3748/9063267/22dc60812e1a/12870_2022_3611_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3748/9063267/3b5a9214243a/12870_2022_3611_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3748/9063267/bf09a45a87ab/12870_2022_3611_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3748/9063267/e231314d4ac1/12870_2022_3611_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3748/9063267/bb2861369dcb/12870_2022_3611_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3748/9063267/19739ab91bb2/12870_2022_3611_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3748/9063267/0d6729f7079f/12870_2022_3611_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3748/9063267/e44014e2db96/12870_2022_3611_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3748/9063267/22dc60812e1a/12870_2022_3611_Fig8_HTML.jpg

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