Meta-analysis of QTL involved in silage quality of maize and comparison with the position of candidate genes.

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
M TruntzlerLaurence Moreau

Abstract

A meta-analysis of quantitative trait loci (QTL) associated with plant digestibility and cell wall composition in maize was carried out using results from 11 different mapping experiments. Statistical methods implemented in "MetaQTL" software were used to build a consensus map, project QTL positions and perform meta-analysis. Fifty-nine QTL for traits associated with digestibility and 150 QTL for traits associated with cell wall composition were included in the analysis. We identified 26 and 42 metaQTL for digestibility and cell wall composition traits, respectively. Fifteen metaQTL with confidence interval (CI) smaller than 10 cM were identified. As expected from trait correlations, 42% of metaQTL for digestibility displayed overlapping CIs with metaQTL for cell wall composition traits. Coincidences were particularly strong on chromosomes 1 and 3. In a second step, 356 genes selected from the MAIZEWALL database as candidates for the cell wall biosynthesis pathway were positioned on our consensus map. Colocalizations between candidate genes and metaQTL positions appeared globally significant based on χ(2) tests. This study contributed in identifying key chromosomal regions involved in silage quality and potentially associated g...Continue Reading

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Citations

Nov 6, 2012·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Gustavo Dias AlmeidaRaman Babu
Aug 31, 2012·BMC Plant Biology·Catherine BodénèsChristophe Plomion
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Jul 6, 2016·Molecular Genetics and Genomics : MGG·Yahui WuWuming Xiao
Oct 23, 2016·BMC Plant Biology·Hongwu WangChangling Huang
Aug 18, 2020·Physiology and Molecular Biology of Plants : an International Journal of Functional Plant Biology·Anuj KumarP K Gupta
Dec 5, 2013·Genome Génome / Conseil National De Recherches Canada·Yi-Hong WangKarl H Hasenstein
May 21, 2019·Frontiers in Plant Science·Laëtitia VirlouvetMatthieu Reymond
Oct 17, 2020·Biotechnology for Biofuels·Duong T NguyenSimon J McQueen-Mason
Apr 25, 2018·Journal of Agricultural and Food Chemistry·F El HageM Reymond

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