SlPLT6通过调节组蛋白乙酰化和甲基化调控番茄的成熟起始和品质性状。

IF 9.1 1区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES
Xiaoqing He, Yi Wu, Peng Shu, Yanpeng Yin, Heng Deng, Shiyu Ying, Mengbo Wu, Panpan Zhao, Tengbo Huang, Julien Pirrello, Yang Zhang, Don Grierson, Zhenhui Zhong, Yiguo Hong, Mondher Bouzayen, Mingchun Liu
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引用次数: 0

摘要

在不影响产量的情况下改善果实生长和质量是作物育种中备受追捧的目标。在这里,我们报道了一个含有EAR基序的转录因子SlPLT6控制着番茄果实成熟的开始和品质性状。SlPLT6基因敲除可在不影响产量的情况下提高两个番茄品种的早熟起始和果实品质。SlPLT6通过直接结合启动子来抑制参与成熟起始和主要品质性状的基因。此外,SlPLT6通过其c端EAR基序募集组蛋白去乙酰化酶1和通过第一个AP2结构域募集LIKE异染色质蛋白1b连接了两种抑制机制。此外,Sly-miR159作用于SlPLT6的上游以释放其抑制作用。综上所述,我们的数据为SlPLT6调控果实成熟和品质性状的运作模式提供了见解,并为目标作物改良定义了一个独特的基因,旨在提高果实品质而不影响产量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
SlPLT6 controls ripening initiation and quality traits through modulation of histone acetylation and methylation in tomato.

Improving fruit growth and quality without compromising yield is a highly sought-after goal in crop breeding. Here, we report that an EAR motif-containing transcription factor SlPLT6 controls the onset of fruit ripening and quality traits in tomato. SlPLT6 knockout caused precocious ripening initiation and enhanced fruit qualities without penalizing yield in two tomato cultivars. SlPLT6 represses genes involved in ripening initiation and major quality traits by directly binding to their promoters. Moreover, SlPLT6 connects two repressive mechanisms by recruiting Histone Deacetylase 1 via its C-terminal EAR motif and LIKE HETEROCHROMATIN PROTEIN 1b through the first AP2 domain. Furthermore, Sly-miR159 acts upstream of SlPLT6 to release its repression. Taken together, our data provide insights into the operating mode of SlPLT6 in modulating fruit ripening and quality traits and define a unique gene for targeted crop improvement aimed at upgrading fruit quality without yield penalty.

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来源期刊
CiteScore
19.00
自引率
0.90%
发文量
3575
审稿时长
2.5 months
期刊介绍: The Proceedings of the National Academy of Sciences (PNAS), a peer-reviewed journal of the National Academy of Sciences (NAS), serves as an authoritative source for high-impact, original research across the biological, physical, and social sciences. With a global scope, the journal welcomes submissions from researchers worldwide, making it an inclusive platform for advancing scientific knowledge.
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