Document Detail


Plant genetics. A Y-chromosome-encoded small RNA acts as a sex determinant in persimmons.
MedLine Citation:
PMID:  25359977     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
In plants, multiple lineages have evolved sex chromosomes independently, providing a powerful comparative framework, but few specific determinants controlling the expression of a specific sex have been identified. We investigated sex determinants in the Caucasian persimmon, Diospyros lotus, a dioecious plant with heterogametic males (XY). Male-specific short nucleotide sequences were used to define a male-determining region. A combination of transcriptomics and evolutionary approaches detected a Y-specific sex-determinant candidate, OGI, that displays male-specific conservation among Diospyros species. OGI encodes a small RNA targeting the autosomal MeGI gene, a homeodomain transcription factor regulating anther fertility in a dosage-dependent fashion. This identification of a feminizing gene suppressed by a Y-chromosome-encoded small RNA contributes to our understanding of the evolution of sex chromosome systems in higher plants.
Authors:
Takashi Akagi; Isabelle M Henry; Ryutaro Tao; Luca Comai
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2014-10-30
Journal Detail:
Title:  Science (New York, N.Y.)     Volume:  346     ISSN:  1095-9203     ISO Abbreviation:  Science     Publication Date:  2014 Oct 
Date Detail:
Created Date:  2014-10-31     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0404511     Medline TA:  Science     Country:  United States    
Other Details:
Languages:  eng     Pagination:  646-50     Citation Subset:  IM    
Copyright Information:
Copyright © 2014, American Association for the Advancement of Science.
Data Bank Information
Bank Name/Acc. No.:
BioProject/PRJNA261435; GENBANK/GBSJ00000000;  JRBH00000000;  KM408638;  KM408639;  KM408640;  KM408641;  KM408642; GEO/GSE61386; SRA/SRP045872
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