QTL mapping for grain yield conditioned on its component traits in two RIL populations of bread wheat

A. Ding; F. Cui; J. Li; C. Zhao; L. Wang; X. Qi; Y. Bao; X. Li; H. Wang

doi:10.1556/crc.2012.0025

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Cereal Research Communications

Volume/Issue:: Volume 41: Issue 1

QTL mapping for grain yield conditioned on its component traits in two RIL populations of bread wheat

Authors:

A. Ding

A. Ding

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F. Cui

F. Cui

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J. Li

J. Li

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C. Zhao

C. Zhao Shandong Agricultural University State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Taian Subcenter of National Wheat Improvement Center, Agronomy College Taian China

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L. Wang

L. Wang Municipal Academy of Agricultural Sciences Jining China

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X. Qi

X. Qi Shandong Agricultural University State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Taian Subcenter of National Wheat Improvement Center, Agronomy College Taian China

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Y. Bao

Y. Bao Shandong Agricultural University State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Taian Subcenter of National Wheat Improvement Center, Agronomy College Taian China

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X. Li

X. Li Shandong Agricultural University State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Taian Subcenter of National Wheat Improvement Center, Agronomy College Taian China

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H. Wang

H. Wang Shandong Agricultural University State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, Taian Subcenter of National Wheat Improvement Center, Agronomy College Taian China

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Pages:: 45–53

Online Publication Date:: 16 Oct 2012

Publication Date:: 01 Mar 2013

Article Category:: Research Article

DOI:: https://doi.org/10.1556/crc.2012.0025

Keywords:: grain yield; yield components; conditional analysis; QTL mapping

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Grain yield (GY) and yield components (YC) were investigated using two F8: 9 RILs, comprising 229 and 485 lines, respectively. A conditional analysis was conducted to generate conditional values for GY independent of each YC. Then both unconditional and conditional values were analyzed to map QTLs with additive effect. In both RILs, up to 23 unconditional and conditional QTLs were detected. However, only two QTLs were identified repeatedly among environments. All QTLs, except for 4 detected in unconditional mapping, were also identified as conditional QTLs, whereas a number of QTLs were additionally detected in conditional mapping. The number of QTLs detected that affected GY was different with respect to component-special influences. Our results revealed that the contributions of YC influencing QTL expression related to GY differed.

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Cereal Research Communications A Quarterly of the Cereal Research Non-Profit Ltd. Company

Print ISSN:: 0133-3720

Online ISSN:: 1788-9170

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Cereal Research Communications
Language	English
Size	A4
Year of Foundation	1973
Volumes per Year	1
Issues per Year	4
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0133-3720 (Print)
ISSN	1788-9170 (Online)