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Mapping of Quantitative Trait Loci Using a Doubled‐Haploid Population from the Cross of Indica and Japonica Cultivars of Rice

2009; Wiley; Volume: 49; Issue: 5 Linguagem: Inglês

10.2135/cropsci2008.11.0655

1435-0653

Victoria C. Lapitan, Edilberto D. Redoña, Toshinori Abe, D. S. Brar,

Plant Disease Resistance and Genetics

Crop ScienceVolume 49, Issue 5 p. 1620-1628 Crop Breeding & Genetic Mapping of Quantitative Trait Loci Using a Doubled-Haploid Population from the Cross of Indica and Japonica Cultivars of Rice Victoria C. Lapitan, Victoria C. Lapitan Plant Breeding and Biotechnology Division, Philippine Rice Research Institute (PhilRice)-Los Baños, Pili Drive, College, Los Baños, 4031Search for more papers by this authorEdilberto D. Redoña, Edilberto D. Redoña Plant Breeding, Genetics, and Biotechnology Division, International Rice Research Institute (IRRI), Los Baños, 4030 Laguna, PhilippinesSearch for more papers by this authorToshinori Abe, Corresponding Author Toshinori Abe tabe@tds1.tr.yamagata-u.ac.jp Bioprocess Engineering Division, Faculty of Agriculture, Yamagata University, 1-23 Wakaba-machi, Tsuruoka, Yamagata, 997-8555 JapanCorresponding author (tabe@tds1.tr.yamagata-u.ac.jp).Search for more papers by this authorDarshan S. Brar, Darshan S. Brar Plant Breeding, Genetics, and Biotechnology Division, International Rice Research Institute (IRRI), Los Baños, 4030 Laguna, PhilippinesSearch for more papers by this author Victoria C. Lapitan, Victoria C. Lapitan Plant Breeding and Biotechnology Division, Philippine Rice Research Institute (PhilRice)-Los Baños, Pili Drive, College, Los Baños, 4031Search for more papers by this authorEdilberto D. Redoña, Edilberto D. Redoña Plant Breeding, Genetics, and Biotechnology Division, International Rice Research Institute (IRRI), Los Baños, 4030 Laguna, PhilippinesSearch for more papers by this authorToshinori Abe, Corresponding Author Toshinori Abe tabe@tds1.tr.yamagata-u.ac.jp Bioprocess Engineering Division, Faculty of Agriculture, Yamagata University, 1-23 Wakaba-machi, Tsuruoka, Yamagata, 997-8555 JapanCorresponding author (tabe@tds1.tr.yamagata-u.ac.jp).Search for more papers by this authorDarshan S. Brar, Darshan S. Brar Plant Breeding, Genetics, and Biotechnology Division, International Rice Research Institute (IRRI), Los Baños, 4030 Laguna, PhilippinesSearch for more papers by this author First published: 01 September 2009 https://doi.org/10.2135/cropsci2008.11.0655Citations: 14 All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information storage and retrieval system, without permission in writing from the publisher. Permission for printing and for reprinting the material contained herein has been obtained by the publisher. The study is part of the Ph.D. dissertation of the senior author, V.C. Lapitan, under the Japan Society for the Promotion of Science (JSPS) RONPAKU Program Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat ABSTRACT Improving the cooking and eating quality of grain has always been an important consideration in most rice (Oryza sativa L.) breeding programs. In this study, an established rice doubled-haploid (DH) population consisting of 219 lines from anther culture of the F1 of indica variety PSB Rc10 and japonica variety Nipponbare was used to identify the quantitative trait loci (QTL) for amylose content (AC), gel consistency (GC), and gelatinization temperature (GT). Two hundred five simple sequence repeat (SSR) markers were used to construct a genetic linkage map covering the 12 chromosomes. A total of 13 QTLs were identified—three for AC and five each for GC and GT. Eight QTLs had major effects from which seven coincided with the most important loci identified in previous reports. All QTLs for AC were shown to have major effects on GC and GT. The QTL with the largest effect, which accounted for 74% of the AC variation corresponded to the waxy (Wx) locus while the other two QTLs were located above and below this region. The significant phenotypic correlations of these traits may underlie the colocalization of their QTLs. A major QTL specifying GT was detected within the alkali degeneration (Alk) locus. Other minor QTLs were identified for GC in chromosomes 2 and 8 and for GT in chromosome 2. Utilization of a homozygous DH population with relatively large sample size might have increased the accuracy of mapping these QTLs. The results thus obtained are valuable in breeding rice varieties with better grain quality. Citing Literature Volume49, Issue5September 2009Pages 1620-1628 RelatedInformation