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Genetic Analysis and QTL Positioning of Primary Branch Number Trait in Liaojing371×Liaojing326 Combination

Da Wang

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Abstract

Primary branch number(PBN) trait of Liaojing371×Liaojing326 were analyzed by the mixed major gene plus polygenes genetic model of quantitative traits.The results showed that PBN trait was controlled by two equal major genes plus polygene with additive-dominance effects(E-4 model).These two major genes showed equal additive effects as-0.618.The heritability of two major genes was about 48.4%.SSR markers on F2 and Qgene software were used to anylisis QTLs of this combination.Two gene loci qPBN-1-1 and qPBN-8-1 were positioned on Chromosome 1 and 8 with additive effects of-0.736 and-0.388,heritability of 11.7% and 10.8% respectively.The results from genetic analysis and QTL positioning were matched for the most part.

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What this paper is about

Primary branch number(PBN) trait of Liaojing371×Liaojing326 were analyzed by the mixed major gene plus polygenes genetic model of quantitative traits.The results showed that PBN trait was controlled by two equal major genes plus polygene with additive-dominance effects(E-4 model).These two major genes showed equal additive effects as-0.618.The heritability of two major genes was about 48.4%.SSR markers on F2 and Qgene software were used to anylisis QTLs of this combination.Two gene loci qPBN-1-1 and qPBN-8-1 were positioned on Chromosome 1 and 8 with additive effects of-0.736 and-0.388,heritability of 11.7% and 10.8% respectively.The results from genetic analysis and QTL positioning were matched for the most part.

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Available abstract

Primary branch number(PBN) trait of Liaojing371×Liaojing326 were analyzed by the mixed major gene plus polygenes genetic model of quantitative traits.The results showed that PBN trait was controlled by two equal major genes plus polygene with additive-dominance effects(E-4 model).These two major genes showed equal additive effects as-0.618.The heritability of two major genes was about 48.4%.SSR markers on F2 and Qgene software were used to anylisis QTLs of this combination.Two gene loci qPBN-1-1 and qPBN-8-1 were positioned on Chromosome 1 and 8 with additive effects of-0.736 and-0.388,heritability of 11.7% and 10.8% respectively.The results from genetic analysis and QTL positioning were matched for the most part.

Key concepts: Polygene, Quantitative trait locus, Heritability, Major gene, Biology, Genetics, Trait, Genetic analysis

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Genetic Analysis and QTL Positioning of Primary Branch Number Trait in Liaojing371×Liaojing326 Combination — Research Paper | ScholarLens