QTL mapping of starch granule size in common wheat using recombinant inbred lines derived from a PH82-2/Neixiang 188 cross

Nan Feng; Zhonghu He; Yong Zhang; Xianchun Xia; Yan Zhang

doi:10.1016/j.cj.2013.07.003

Crop Journal (Dec 2013)

QTL mapping of starch granule size in common wheat using recombinant inbred lines derived from a PH82-2/Neixiang 188 cross

Nan Feng,
Zhonghu He,
Yong Zhang,
Xianchun Xia,
Yan Zhang

Affiliations

Nan Feng: Institute of Crop Science, National Wheat Improvement Center/The National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100081, China
Zhonghu He: Institute of Crop Science, National Wheat Improvement Center/The National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100081, China;International Maize and Wheat Improvement Center (CIMMYT) China Office, c/o CAAS, Beijing 100081, China
Yong Zhang: Institute of Crop Science, National Wheat Improvement Center/The National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100081, China
Xianchun Xia: Institute of Crop Science, National Wheat Improvement Center/The National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100081, China
Yan Zhang: Institute of Crop Science, National Wheat Improvement Center/The National Key Facility for Crop Gene Resources and Genetic Improvement, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100081, China

DOI: https://doi.org/10.1016/j.cj.2013.07.003
Journal volume & issue: Vol. 1, no. 2
pp. 166 – 171

Abstract

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Starch is a crucial component determining the processing quality of wheat (Triticum aestivum L.)-based products. Wheat starch generally contains A-type and B-type starch granules, having different effects on starch properties and end-use qualities. In the present study, 240 recombinant inbred lines (RILs) derived from a PH82-2/Neixiang 188 cross were grown in Anyang, Henan, China, during three cropping seasons. A-type and B-type granule contents were determined using a laser diffraction particle size analyzer, defined as the percentage of total starch volume. A total of 195 SSR and STS markers were used to construct a genetic map. QTL analysis was performed by composite interval mapping. Three QTL for A-type starch granule content were mapped on chromosomes 1DL, 7BL and 4AL, explaining 5.6%, 5.2% and 3.8% of the phenotypic variation, respectively. These results provide useful information for improving starch quality in common wheat.

Published in Crop Journal

ISSN: 2095-5421 (Print); 2214-5141 (Online)
Publisher: KeAi Communications Co., Ltd.
Country of publisher: China
LCC subjects: Agriculture: Agriculture (General)
Website: https://www.keaipublishing.com/en/journals/the-crop-journal/

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