Skip to main content
ARS Home » Plains Area » College Station, Texas » Southern Plains Agricultural Research Center » Insect Control and Cotton Disease Research » Research » Publications at this Location » Publication #419523
Research Project: Molecular and Genetic Approaches to Manage Cotton and Sorghum Diseases

Location: Insect Control and Cotton Disease Research

Title: Registration of three Upland cotton germplasm lines resistant to root-knot and reniform nematodes

Author
item Bell, Alois
item Quintana, Jose
item Hinze, Lori
item HARRIS, JARRED - Us Army Corp Of Engineers (USACE)
item Liu, Jinggao
item WAGNER, TANYA - Texas A&M University
item PROM, SANDRIA - Texas A&M University
item Esquivel, Jesus

Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 5/27/2025
Publication Date: 8/6/2025
Citation: Bell, A.A., Quintana, J., Hinze, L.L., Harris, J., Liu, J., Wagner, T.A., Prom, S., Esquivel, J.F. 2025. Registration of three Upland cotton germplasm lines resistant to root-knot and reniform nematodes. Journal of Plant Registrations. 19(2). Article e70019. https://doi.org/10.1002/plr2.70019.
DOI: https://doi.org/10.1002/plr2.70019

Interpretive Summary: Three Upland cotton lines that are resistant to reniform and root-knot nematodes were developed and released by the USDA-ARS in 2024. The three lines each contain simple genetic markers for the respective genes responsible for nematode resistance. In controlled environmental assays, the three lines reduced reniform and root-knot nematode eggs by an average of 84 and 97 %, respectively. In field studies, the three lines outyielded commercial varieties by 12 to 20%, and possessed fiber quality equal to or greater than those of commercial varieties. The release and registration of these three cotton lines with genetic markers will provide breeders with agronomically elite germplasm that is resistant to both reniform and root-knot nematodes which, in turn, will also greatly reduce the severity of the Fusarium wilt disease caused by race 1.

Technical Abstract: Cotton (Gossypium hirsutum L.) germplasm lines BARBREN 713-32-28 (Reg. No._, PI_), BARBREN 713-32-30 (Reg. No._, PI_), and BARBREN 713-32-38 (Reg. No._, PI_) were developed and released by the USDA-ARS in 2024. The objective of the releases was to provide breeders with agronomically elite germplasm that is resistant to both reniform nematode (Rotylenchulus reniformis, Linford & Oliveira) and root-knot nematode [Meloidogyne incognita (Kolfoid & White) Chitwood]. The releases also reduce severity of Fusarium wilt caused by various genotypes of race 1. The lines have simple sequence repeat (SSR) DNA markers CIR316_202 and BNL3661_185 for the Mi-1 and Mi-2 genes for resistance to root-knot nematode, respectively, and BNL 3279_105 and BNL 569_131 for the Ren2GB713 and Ren3GB713 genes for resistance to reniform nematode. The single nucleotide polymorphism (SNP) marker GI-187401 also was associated with the Ren2GB713 gene. In controlled environment assays, these lines suppressed numbers of reniform nematode eggs by a mean of 83.6% and root-knot nematode eggs by a mean of 97.2% compared to control plants. The released lines with both the Mi-1 and Mi-2 genes had significantly greater shoot weight than other experimental lines with the Mi-1 gene alone, but not the Mi-2 gene in soils infested with both root-knot nematode and Fusarium oxysporum f. sp. vasinfectum (Fov) race 1 isolates. The lines outyielded Fibermax ‘FM 966’ by 12 to 20% and had fiber quality equal to or greater than Phytogen ‘PSC 355’.