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油茶MADS-box基因的全基因组分析揭示其参与种子发育和油脂积累

Genome-Wide Analyses of MADS-Box Genes Reveal Their Involvement in Seed Development and Oil Accumulation of Tea-Oil Tree ().

作者信息

Zhang Xianzhi, He Wenliang, Wang Xinyi, Duan Yongliang, Li Yongjuan, Wang Yi, Jiang Qingbin, Liao Boyong, Zhou Sheng, Li Yongquan

机构信息

College of Horticulture and Landscape Architecture Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.

Heyuan Branch Center Guangdong Laboratory for Lingnan Modern Agriculture, Heyuan 517500, China.

出版信息

Int J Genomics. 2024 Jul 29;2024:3375173. doi: 10.1155/2024/3375173. eCollection 2024.

DOI:10.1155/2024/3375173
PMID:39105136
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11300058/
Abstract

The seeds of produce high amount of oil, which can be broadly used in the fields of food, industry, and medicine. However, the molecular regulation mechanisms of seed development and oil accumulation in are unclear. In this study, evolutionary and expression analyses of the MADS-box gene family were performed across the genome for the first time. A total of 86 MADS-box genes () were identified, including 60 M-type and 26 MIKC members. More gene duplication events occurred in M-type subfamily (6) than that in MIKC subfamily (2), and genes were lost from the MIKC clade. Furthermore, 8, 15, and 17 differentially expressed genes (DEGs) were detected between three developmental stages of seed (S1/S2, S2/S3, and S1/S3), respectively. Among these DEGs, the and were highly expressed during the seed formation (S1 and S2), agreeing with their predicted functions to positively regulate the seed organogenesis and oil accumulation. While and showed increasing expression level with the seed maturation (S2 and S3), conforming to their potential roles in promoting the seed ripening. In all, these results revealed a critical role of MADS-box genes in the seed development and oil accumulation, which will contribute to the future molecular breeding of .

摘要

该植物的种子含有大量油脂，可广泛应用于食品、工业和医药领域。然而，该植物种子发育和油脂积累的分子调控机制尚不清楚。在本研究中，首次对该植物基因组进行了MADS-box基因家族的进化和表达分析。共鉴定出86个MADS-box基因（该植物MADS-box基因），包括60个M-type和26个MIKC成员。M-type亚家族（6个）发生的基因重复事件比MIKC亚家族（2个）多，并且MIKC进化枝中有该植物基因丢失。此外，在种子的三个发育阶段（S1/S2、S2/S3和S1/S3）分别检测到8个、15个和17个差异表达的该植物基因（DEGs）。在这些DEGs中，该植物基因和该植物基因在种子形成阶段（S1和S2）高度表达，与其正向调控种子器官发生和油脂积累的预测功能一致。而该植物基因和该植物基因随着种子成熟（S2和S3）表达水平升高，符合它们在促进种子成熟中的潜在作用。总之，这些结果揭示了MADS-box基因在该植物种子发育和油脂积累中的关键作用，这将有助于该植物未来的分子育种。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b41a/11300058/93ac5505e522/IJG2024-3375173.007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b41a/11300058/a22101d2b41b/IJG2024-3375173.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b41a/11300058/297ee3501e39/IJG2024-3375173.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b41a/11300058/eb936f6775fb/IJG2024-3375173.003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b41a/11300058/5ee45952b615/IJG2024-3375173.006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b41a/11300058/93ac5505e522/IJG2024-3375173.007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b41a/11300058/a22101d2b41b/IJG2024-3375173.001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b41a/11300058/297ee3501e39/IJG2024-3375173.002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b41a/11300058/eb936f6775fb/IJG2024-3375173.003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b41a/11300058/5ee45952b615/IJG2024-3375173.006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/b41a/11300058/93ac5505e522/IJG2024-3375173.007.jpg

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