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基因家族成员的鉴定及一个关键结构变异揭示了OVATE基因在调控茶树叶片发育中的重要作用。

Identification of gene family members and a key structural variation reveal important roles of OVATE genes in regulating tea () leaf development.

作者信息

An Yanlin, Xia Xiaobo, Jing Tingting, Zhang Feng

机构信息

Department of Food Science and Engineering, Moutai Institute, Renhuai, China.

CIMMYT-JAAS Joint Center for Wheat Diseases/Key Laboratory of Germplasm Innovation in Downstream of Huaihe River (Nanjing) Ministry of Agriculture and Rural Affairs, Nanjing, China.

出版信息

Front Plant Sci. 2022 Sep 23;13:1008408. doi: 10.3389/fpls.2022.1008408. eCollection 2022.

DOI:10.3389/fpls.2022.1008408
PMID:36212328
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9539550/
Abstract

OVATE genes are a new class of transcriptional repressors with important regulatory roles in plant growth and development. Through genome-wide analysis of the OVATE gene family of tea plants, 26 and 13 family members were identified in cultivated and ancient tea plants, respectively. Syntenic results showed that OVATE gene family in cultivated tea plants may have experienced a special expansion event. Based on phylogenetic tree analysis, all OVATE genes were divided into four groups, and the third group had the largest number, reaching 16. Transcriptome data from different organs and populations indicated that many OVATE family members were highly expressed in young shoots and leaves, and their expression levels gradually decreased as tea leaves developed. Finally, the expression trends of the six key candidate genes were verified by RT-qPCR, which were consistent with the transcriptome results, indicating that the ovate gene family plays an important role in regulating the process of tea leaf development. In addition, we identified a key structural variation with a length of 184 bp, and the population genotyping showed that it was closely related to the area of tea leaves. Our research provides an important clue for further exploring the function of ovate gene family in tea plants and the development mechanism of tea leaves.

摘要

OVATE基因是一类新的转录抑制因子，在植物生长发育中具有重要的调控作用。通过对茶树OVATE基因家族进行全基因组分析，在栽培茶树和古老茶树中分别鉴定出26个和13个家族成员。共线性分析结果表明，栽培茶树中的OVATE基因家族可能经历了一次特殊的扩张事件。基于系统发育树分析，所有OVATE基因被分为四组，其中第三组数量最多，达到16个。来自不同器官和群体的转录组数据表明，许多OVATE家族成员在幼芽和叶片中高表达，并且随着茶叶的发育其表达水平逐渐降低。最后，通过RT-qPCR验证了6个关键候选基因的表达趋势，与转录组结果一致，表明OVATE基因家族在调控茶叶发育过程中发挥重要作用。此外，我们鉴定出一个长度为184 bp的关键结构变异，群体基因分型显示其与茶叶面积密切相关。我们的研究为进一步探究OVATE基因家族在茶树中的功能以及茶叶发育机制提供了重要线索。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e93e/9539550/2f7fc1227ae9/fpls-13-1008408-g0010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e93e/9539550/26115d579cc1/fpls-13-1008408-g0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e93e/9539550/158a5c67b707/fpls-13-1008408-g0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e93e/9539550/d9efa8736c23/fpls-13-1008408-g0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e93e/9539550/22d5124329e8/fpls-13-1008408-g0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e93e/9539550/760ce6b2b075/fpls-13-1008408-g0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e93e/9539550/170ad157be3b/fpls-13-1008408-g0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e93e/9539550/b3e846d875c3/fpls-13-1008408-g0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e93e/9539550/d3bbcd2bccef/fpls-13-1008408-g0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e93e/9539550/82c4e58720cd/fpls-13-1008408-g0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e93e/9539550/2f7fc1227ae9/fpls-13-1008408-g0010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e93e/9539550/26115d579cc1/fpls-13-1008408-g0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e93e/9539550/158a5c67b707/fpls-13-1008408-g0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e93e/9539550/d9efa8736c23/fpls-13-1008408-g0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e93e/9539550/22d5124329e8/fpls-13-1008408-g0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e93e/9539550/760ce6b2b075/fpls-13-1008408-g0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e93e/9539550/170ad157be3b/fpls-13-1008408-g0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e93e/9539550/b3e846d875c3/fpls-13-1008408-g0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e93e/9539550/d3bbcd2bccef/fpls-13-1008408-g0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e93e/9539550/82c4e58720cd/fpls-13-1008408-g0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e93e/9539550/2f7fc1227ae9/fpls-13-1008408-g0010.jpg

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