Transcriptome analyses of seed development in grape hybrids reveals a possible mechanism influencing seed size

文献类型： 外文期刊

第一作者： Wang, Li

作者： Wang, Li;Hu, Xiaoyan;Jiao, Chen;Li, Zhi;Yan, Xiaoxiao;Wang, Yuejin;Wang, Xiping;Wang, Li;Hu, Xiaoyan;Li, Zhi;Yan, Xiaoxiao;Wang, Yuejin;Wang, Xiping;Jiao, Chen;Fei, Zhangjun;Liu, Chonghuai

作者机构：

关键词： Grape;Hormone;Mechanism;Seed size;Transcriptome

期刊名称：BMC GENOMICS （ 影响因子：3.969； 五年影响因子：4.478 ）

ISSN： 1471-2164

年卷期： 2016 年 17 卷

页码：

收录情况： SCI

摘要： Background: Seedlessness in grape (Vitis vinifera) is of considerable commercial importance for both the table grape and processing industries. Studies to date of grape seed development have been made certain progress, but many key genes have yet to be identified and characterized. Results: In this study we analyzed the seed transcriptomes of progeny derived from the V. vinifera seeded maternal parent 'Red Globe' and the seedless paternal parent 'Centennial seedless' to identify genes associated with seedlessness. A total of 6,607 differentially expressed genes (DEGs) were identified and examined from multiple perspectives, including expression patterns, Gene Ontology ( GO) annotations, pathway enrichment, inferred hormone influence and epigenetic regulation. The expression data of hormone-related genes and hormone level measurement reveals the differences during seed development between seedless and seeded progeny. Based on both our results and previous studies of A. thaliana seed development, we generated network maps of grape seed-related DEGs, with particular reference to hormone balance, seed coat and endosperm development, and seed identity complexes. Conclusion: In summary, the major differences identified during seed development of seedless and seeded progeny were associated with hormone and epigenetic regulation, the development of the seed coat and endosperm, and the formation of seed identity complexes. Overall the data provides insights into the possible molecular mechanism controlling grape seed size, which is of great importance for both basic research and future translation applications in the grape industry.

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