An arsenate tolerance gene on chromosome 6 of rice

Tapash Dasgupta; S. A. Hossain; Andrew Alexander Meharg; Adam Huw Price

doi:10.1111/j.1469-8137.2004.01109.x

An arsenate tolerance gene on chromosome 6 of rice

Tapash Dasgupta, S. A. Hossain, Andrew Alexander Meharg, Adam Huw Price

Aberdeen Centre For Environmental Sustainability

Research output: Contribution to journal › Article › peer-review

82 Citations (Scopus)

Abstract

The genetics of arsenic tolerance in plants has not been extensively studied and no arsenic tolerance gene has been genetically mapped.

Screening 20 diverse genotypes of rice for reduced root growth in 13.3 m arsenate identified marked differences in tolerance. The most sensitive variety, Dawn, is known to be highly susceptible to straighthead, a condition linked to arsenic contamination of soil.

Screening 108 recombinant inbred lines of the Bala x Azucena mapping population revealed the presence of a major gene, AsTol, which mapped between markers RZ516 and RG213 on chromosome 6.

This gene is a good target for further characterisation. It should prove valuable for investigations into the physiological and molecular mechanism behind arsenic tolerance in plants and may lead to strategies aimed at breeding for arsenic contaminated regions.

Original language	English
Pages (from-to)	45-49
Number of pages	4
Journal	New Phytologist
Volume	163
Issue number	1
DOIs	https://doi.org/10.1111/j.1469-8137.2004.01109.x
Publication status	Published - Jul 2004

Keywords

Arsenic tolerance
phosphate
Oryza
QTL
Oryza glaberrima
Straighthead
ORYZA-SATIVA L.
HOLCUS-IANATUS L
PHOSPHORUS-DEFICIENCY
PHOSPHATE-UPTAKE
QTLS
CONTAMINATION
BANGLADESH
METABOLISM
WATER

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10.1111/j.1469-8137.2004.01109.x

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title = "An arsenate tolerance gene on chromosome 6 of rice",

abstract = "The genetics of arsenic tolerance in plants has not been extensively studied and no arsenic tolerance gene has been genetically mapped.Screening 20 diverse genotypes of rice for reduced root growth in 13.3 m arsenate identified marked differences in tolerance. The most sensitive variety, Dawn, is known to be highly susceptible to straighthead, a condition linked to arsenic contamination of soil.Screening 108 recombinant inbred lines of the Bala x Azucena mapping population revealed the presence of a major gene, AsTol, which mapped between markers RZ516 and RG213 on chromosome 6.This gene is a good target for further characterisation. It should prove valuable for investigations into the physiological and molecular mechanism behind arsenic tolerance in plants and may lead to strategies aimed at breeding for arsenic contaminated regions.",

keywords = "Arsenic tolerance, phosphate, Oryza, QTL, Oryza glaberrima, Straighthead, ORYZA-SATIVA L., HOLCUS-IANATUS L, PHOSPHORUS-DEFICIENCY, PHOSPHATE-UPTAKE, QTLS, CONTAMINATION, BANGLADESH, METABOLISM, WATER",

author = "Tapash Dasgupta and Hossain, {S. A.} and Meharg, {Andrew Alexander} and Price, {Adam Huw}",

year = "2004",

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T1 - An arsenate tolerance gene on chromosome 6 of rice

AU - Dasgupta, Tapash

AU - Hossain, S. A.

AU - Meharg, Andrew Alexander

AU - Price, Adam Huw

PY - 2004/7

Y1 - 2004/7

N2 - The genetics of arsenic tolerance in plants has not been extensively studied and no arsenic tolerance gene has been genetically mapped.Screening 20 diverse genotypes of rice for reduced root growth in 13.3 m arsenate identified marked differences in tolerance. The most sensitive variety, Dawn, is known to be highly susceptible to straighthead, a condition linked to arsenic contamination of soil.Screening 108 recombinant inbred lines of the Bala x Azucena mapping population revealed the presence of a major gene, AsTol, which mapped between markers RZ516 and RG213 on chromosome 6.This gene is a good target for further characterisation. It should prove valuable for investigations into the physiological and molecular mechanism behind arsenic tolerance in plants and may lead to strategies aimed at breeding for arsenic contaminated regions.

AB - The genetics of arsenic tolerance in plants has not been extensively studied and no arsenic tolerance gene has been genetically mapped.Screening 20 diverse genotypes of rice for reduced root growth in 13.3 m arsenate identified marked differences in tolerance. The most sensitive variety, Dawn, is known to be highly susceptible to straighthead, a condition linked to arsenic contamination of soil.Screening 108 recombinant inbred lines of the Bala x Azucena mapping population revealed the presence of a major gene, AsTol, which mapped between markers RZ516 and RG213 on chromosome 6.This gene is a good target for further characterisation. It should prove valuable for investigations into the physiological and molecular mechanism behind arsenic tolerance in plants and may lead to strategies aimed at breeding for arsenic contaminated regions.

KW - Arsenic tolerance

KW - phosphate

KW - Oryza

KW - QTL

KW - Oryza glaberrima

KW - Straighthead

KW - ORYZA-SATIVA L.

KW - HOLCUS-IANATUS L

KW - PHOSPHORUS-DEFICIENCY

KW - PHOSPHATE-UPTAKE

KW - QTLS

KW - CONTAMINATION

KW - BANGLADESH

KW - METABOLISM

KW - WATER

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DO - 10.1111/j.1469-8137.2004.01109.x

M3 - Article

SN - 0028-646X

VL - 163

SP - 45

EP - 49

JO - New Phytologist

JF - New Phytologist

IS - 1

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An arsenate tolerance gene on chromosome 6 of rice

Abstract

Keywords

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