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Genetic Basis of Heterosis for Growth-Related Traits in Arabidopsis Investigated by Testcross Progenies of Near-Isogenic Lines Reveals a Significant Role of Epistasis
From:
Genetics
| Date:
November 1, 2007| Author:
Melchinger, Albrecht E; Piepho, Hans-Peter; Utz, H Friedrich; Muminovic, Jasmina; Wegenast, Thilo; TÃ ¶ rjek, Otto; Altmann, Thomas; Kusterer, Barbara
| Copyright Genetics Society of America Nov 2007. Provided by ProQuest LLC.Copyright information
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ABSTRACT
Epistasis seems to play a significant role in the manifestation of heterosis. However, the power of detecting epistatic interactions among quantitative trait loci (QTL) in segregating populations is low. We studied heterosis in Arabidopsis thaliana hybrid C24 Ã Col-0 by testing near-isogenic lines (NILs) and their triple testcross (TTC) progenies. Our objectives were to (i) provide the theoretical basis for estimating different types of genetic effects with this experimental ...
