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Journal of Zhejiang University SCIENCE B 2009 Vol.10 No.10 P.777~783


A new genetic factor for root gravitropism in rice (Oryza sativa L.)

Author(s):  Jiang-hua SHI, Xi HAO, Zhong-chang WU, Ping WU

Affiliation(s):  State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou 310058, China

Corresponding email(s):   jhshi@zju.edu.cn

Key Words:  Oryza sativa L., Root gravitropism, Genetic factor

Jiang-hua SHI, Xi HAO, Zhong-chang WU, Ping WU. A new genetic factor for root gravitropism in rice (Oryza sativa L.)[J]. Journal of Zhejiang University Science B, 2009, 10(10): 777~783.

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author="Jiang-hua SHI, Xi HAO, Zhong-chang WU, Ping WU",
journal="Journal of Zhejiang University Science B",
publisher="Zhejiang University Press & Springer",

%0 Journal Article
%T A new genetic factor for root gravitropism in rice (Oryza sativa L.)
%A Jiang-hua SHI
%A Zhong-chang WU
%A Ping WU
%J Journal of Zhejiang University SCIENCE B
%V 10
%N 10
%P 777~783
%@ 1673-1581
%D 2009
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.B0920132

T1 - A new genetic factor for root gravitropism in rice (Oryza sativa L.)
A1 - Jiang-hua SHI
A1 - Xi HAO
A1 - Zhong-chang WU
A1 - Ping WU
J0 - Journal of Zhejiang University Science B
VL - 10
IS - 10
SP - 777
EP - 783
%@ 1673-1581
Y1 - 2009
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.B0920132

root gravitropism is one of the important factors to determine root architecture. To understand the mechanism underlying root gravitropism, we isolated a rice (Xiushui63) mutant defective in root gravitropism, designated as gls1. Vertical sections of root caps revealed that gls1 mutant displayed normal distribution of amyloplast in the columella cells compared with the wild type. The gls1 mutant was less sensitive to 2,4-dichlorophenoxyacetic acid (2,4-D) and α-naphthaleneacetic acid (NAA) than the wild type. Genetic analysis indicated that the phenotype of gls1 mutant was caused by a single recessive mutation, which is mapped in a 255-kb region between RM16253 and CAPS1 on the short arm of chromosome 4.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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