Theoretical and Applied Genetics (2009) 120, 139-150

Gabriela Beatriz Romano, Erik J. Sacks, Salliana R. Stetina, A. Forest Robinson, David D. Fang, Osman A. Gutierrez and Jodi A. Scheffler (2009)
Identification and genomic location of a reniform nematode (Rotylenchulus reniformis) resistance locus (Ren^ari) introgressed from Gossypium aridum into upland cotton (G. hirsutum)
Theoretical and Applied Genetics 120 (1), 139-150
Abstract: In this association mapping study, a tri-species hybrid, [Gossypium arboreum × (G. hirsutum × G. aridum)²], was crossed with MD51ne (G. hirsutum) and progeny from the cross were used to identify and map SSR markers associated with reniform nematode (Rotylenchulus reniformis) resistance. Seventy-six progeny (the 50 most resistant and 26 most susceptible) plants were genotyped with 104 markers. Twenty-five markers were associated with a resistance locus that we designated Ren ^ari and two markers, BNL3279_132 and BNL2662_090, mapped within 1 cM of Ren ^ari . Because the SSR fragments associated with resistance were found in G. aridum and the bridging line G 371, G. aridum is the likely source of this resistance. The resistance is simply inherited, possibly controlled by a single dominant gene. The markers identified in this project are a valuable resource to breeders and geneticists in the quest to produce cotton cultivars with a high level of resistance to reniform nematode.
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Database assignments for author(s): Jodi A. Scheffler, David D. Fang, Salliana R. Stetina, A. Forest Robinson

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Rotylenchulus reniformis	Cotton (Gossypium)