Journal
JOURNAL OF APPLIED GENETICS
Volume 63, Issue 2, Pages 213-221Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s13353-021-00676-7
Keywords
Doubled haploid (DH) lines; Barley; QTL interaction; Genetic interactions; Statistical methods
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This study compared two methods for estimating the aaa interaction of QTL effects, revealing that estimators obtained with molecular marker information had smaller absolute values.
This paper presents the analytical and numerical comparison of two methods of estimation of additive x additive x additive (aaa) interaction of QTL effects. The first method takes into account only the plant phenotype, while in the second we also included genotypic information from molecular marker observation. Analysis was made on 150 doubled haploid (DH) lines of barley derived from cross Steptoe x Morex and 145 DH lines from Harrington x TR306 cross. In total, 153 sets of observation was analyzed. In most cases, aaa interactions were found with an exert effect on QTL. Results also show that with molecular marker observations, obtained estimators had smaller absolute values than phenotypic estimators.
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