Transcriptional repression specifies the central cell for double fertilization | Zendy

Mengxia Zhang | Zendy; Shanshan Zhu | Zendy; YongChao Xu | Zendy; YaLong Guo | Zendy; WeiCai Yang | Zendy; HongJu Li | Zendy

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Transcriptional repression specifies the central cell for double fertilization

Author(s) -

Mengxia Zhang,

Shanshan Zhu,

YongChao Xu,

YaLong Guo,

WeiCai Yang,

HongJu Li

Publication year - 2020

Publication title -

proceedings of the national academy of sciences

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.011

H-Index - 771

eISSN - 1091-6490

pISSN - 0027-8424

DOI - 10.1073/pnas.1909465117

Subject(s) - biology , double fertilization , gametophyte , gamete , egg cell , genetics , embryo , sporophyte , microbiology and biotechnology , ploidy , endosperm , cell fate determination , mitosis , ovule , arabidopsis , sexual reproduction , bryopsida , gene , botany , transcription factor , human fertilization , pollen tube , mutant , pollination , pollen

Significance Double fertilization is a key innovation of flowering plants. The central cell is the second female gamete, and its fertilization gives rise to the endosperm, the nurse of a seed. However, how this cell is specified and evolved in angiosperm remains unknown. This study reveals a transcriptional repression mechanism to specify the central cell inArabidopsis and provides insight into the origination of this mechanism in Brassicaceae.

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