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United States Department of Agriculture

Agricultural Research Service

Research Project: GENETIC AND CULTURAL METHODS TO MANAGE RENIFORM NEMATODE IN COTTON

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Title: Reniform nematode (Rotylenchulus reniformis) resistance locus from Gossypium aridum identified and introgressed into upland cotton (G. hirsutum))

Author
item Romano, Gabriela
item Sacks, Erik
item Stetina, Salliana - Sally
item Robinson, Arin
item Fang, David
item Gutierrez, Osman
item Scheffler, Jodi

Submitted to: Journal of Nematology
Publication Type: Abstract only
Publication Acceptance Date: 7/13/2009
Publication Date: 12/1/2009
Citation: Romano, G.B., Sacks, E.J., Stetina, S.R., Robinson, A.F., Fang, D.D., Gutierrez, O.A., Scheffler, J.A. 2009. Reniform nematode (Rotylenchulus reniformis) resistance locus from Gossypium aridum identified and introgressed into upland cotton (G. hirsutum). Journal of Nematology. 41(4):375-376.

Interpretive Summary:

Technical Abstract: SSR markers associated with reniform nematode (Rotylenchulus reniformis) resistance were identified and mapped using progeny from a cross between a tri-species hybrid [Gossypium arboreum × (G 371 - G. hirsutum × G. aridum -)] and G. hirsutum MD51ne. The 50 most resistant and 26 most susceptible progeny were genotyped with 104 markers. Of these, 25 markers were associated with a resistance locus. Two markers, BNL 3279_132 and BNL 2662_090, were mapped within 1 cM of the locus. Results indicate that the resistance is simply inherited, possibly controlled by a single dominant gene. Because the SSR fragments associated with resistance were found in G. aridum and the progenitor G 371 (G. hirsutum × G. aridum), G. aridum is the likely source of this resistance. The availability of this source of resistance in a G. hirsutum background, along with related molecular markers, should facilitate development of cotton cultivars with a high level of resistance to reniform nematode.

Last Modified: 8/24/2016
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