NDLI: Physiological character and molecular mapping of leaf-color mutant wyv1 in rice (Oryza sativa L.)

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Genes & Genomics : Volume 32, Issue 1, February 2010

Genes & Genomics : Volume 31

Physiological character and molecular mapping of leaf-color mutant wyv1 in rice (Oryza sativa L.)

Content Provider	Springer Nature Link
Author	Sang, Xian chun Fang, Li kui Vanichpakorn, Yuenyong Ling, Ying hua Du, Peng Zhao, Fang ming Yang, Zheng lin He, Guang hua
Copyright Year	2010
Abstract	The seed of an excellent indica restorer line Jinhui10 (Oryza sativa L. ssp. indica) was treated by ethyl methanesulfonate (EMS); a leaf-color mutant displaying distinct phenotype throughout development grown in paddy field was identified from the progeny. The mutant leaf showed white-yellow at seedling stage and then turned to yellow-green at tillering stage, after that, virescent color appeared until to maturity. The mutant was thus temporarily designed as wyv1. The chlorophyll contents decreased significantly and the changing was consistent with the chlorotic level of wyv1 leaves. Chlorophyll fluorescence kinetic parameters measured at the seedling stage showed that co-efficiency of photochemical quenching (qP), actual photosystem II efficiency (ΦPS II), electron transport rate (ETR) and initial chlorophyll fluorescence level (Fo), net photosynthetic rate (Pn) and maximum photochemical efficiency (Fv / Fm) significantly decreased in severe chlorotic leaf of the mutant compared with that of wild type. However, no significant differences were observed for Pn and Fv/Fm between virescent leaf and normal green leaf. Genetic analysis suggested that the mutant phenotype was controlled by a single recessive nuclear gene which was finally mapped between SSR marker Y7 and Y6 on rice chromosome 3 based on F2 population of Xinong1A / wyv1. Genetic distances were 0.06 cM and 0.03 cM respectively, and the physical distance was 84 kb according to the sequence of indica rice 9311. The results must facilitate map-based cloning and functional analysis of WYV1 gene.
Starting Page	123
Ending Page	128
Page Count	6
File Format	PDF
ISSN	19769571
Journal	Genes & Genomics
Volume Number	32
Issue Number	2
Language	English
Publisher	The Genetics Society of Korea
Publisher Date	2010-04-30
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	Chlorophyll deficient Fine mapping Rice (Oryza sativa L.) white-yellow-virescent 1 (wyv1) Human Genetics Animal Genetics and Genomics Plant Genetics & Genomics Microbial Genetics and Genomics
Content Type	Text
Resource Type	Article
Subject	Genetics Biochemistry Molecular Biology

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