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Quantitative trait loci mapping of pubescence density and flowering time of insect-resistant soybean (Glycine max L. Merr.)

DOI: 10.1590/S1415-47572007000400022

Keywords: glycine max, hair, maturity, pest resistance, qtl, ssr.

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analysis of antibiosis resistance to common cutworm (spodoptera litura fabricius) in soybean (glycine max (l.) merr.) has progressed significantly, but the immediate cause remains unknown. we performed quantitative trait loci (qtl) analysis of pubescence density and plant development stage because these factors are assumed to be the immediate cause of resistance to cutworm. the qtls for pubescence appeared to be identical to the previously detected the pd1 and ps loci controlling pubescence density. we found no candidate loci for flowering time qtls, although one could be identical to the gene governing the long-juvenile trait or to the e6 loci controlling maturity. none of the qtls overlapped with the qtls for antibiosis resistance.


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