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ARS Home » Southeast Area » Mississippi State, Mississippi » Crop Science Research Laboratory » Genetics and Sustainable Agriculture Research » Research » Publications at this Location » Publication #386231
Research Project: Improvement of Cotton through Genetic Base Diversification and Enhancement of Agronomic, Fiber, and Nematode Resistance Traits

Location: Genetics and Sustainable Agriculture Research

Title: Registration of seven recombinant inbred lines of Upland Cotton with improved fiber length or strength

Author
item Jenkins, Johnie
item McCarty, Jack
item Hayes, Russell - Russ
item Wubben, Martin
item Fang, David
item Thyssen, Gregory
item Zeng, Linghe
item Campbell, Benjamin - Todd
item JONES, DON - Cotton, Inc

Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 9/29/2021
Publication Date: 11/18/2021
Citation: Jenkins, J.N., Mccarty Jr, J.C., Hayes, R.W., Wubben, M., Fang, D.D., Thyssen, G.N., Zeng, L., Campbell, B.T., Jones, D.C. 2021. Registration of seven recombinant inbred lines of Upland cotton with improved fiber length or strength. Journal of Plant Registrations. 16:94-99. https://doi.org/10.1002/plr2.20193.
DOI: https://doi.org/10.1002/plr2.20193

Interpretive Summary: Increased cotton fiber strength and length are needed in cotton cultivars for modern high speed spinning processes. Seven cotton germplasm lines with improved fiber properties of strength and length have been released and are now available for use in cotton breeding. These lines were developed by first random mating of 10 diverse cultivars and one root-knot resistant line for six cycles followed by development of a large number of recombinant inbred lines (RIL). These lines were evaluated for fiber properties. MS-RIL-037, MS-RIL-219, and MS-RIL-303 have significantly stronger and longer fiber than Acala Ultima or FM 966 the two best parents for fiber strength and length in the random mated population. MS-RIL-204, MS-RIL-282, and MS-RIL-490 have significantly longer fiber than the two best fiber parents. MS-RIL-009 has significantly stronger fiber than the two best fiber parents. The development of these lines shows that random mating followed by development of RILs can recombine alleles for fiber strength and length into new homozygous lines that are significantly better than any of the parents. This methodology recombines the available genetic diversity in cotton for fiber strength and length into new breeding lines that offer significant improvement in two traits needed for modern spinning processes. Core Idea 2: Random mating followed by development of RIL recombines alleles into useful breeding lines. Core Idea 3: MS-RIL-037, 219, and 303 have significantly stronger and longer fiber than best parent. Core idea 4: MS-RIL-204, 282, and 490 have significantly longer fiber than best parent. Core idea 5: MS-RIL-009 has significantly stronger fiber than the best parent.

Technical Abstract: The genetic base for upland cotton (Gossypium hirsutum L.) is narrow for the economically important fiber traits of strength and length. We developed random mated population RMUP-C5 from 11 parental lines and released seed in 2008. We have now developed 550 recombinant inbred lines (RILs) from this population and evaluated them for fiber properties in eight environments. We report the development and release of seven RILs with improved fiber strength and/or UHM fiber length. MS-RIL-009 (Reg. No. GP- PI698460); MS-RIL-037 (Reg. No. GP- PI698461); MS-RIL-204 (Reg. No, GP PI698462); MS-RIL-219 (Reg No. GP PI698463); MS-RIL-282 (Reg. No. GP ,PI698464); MS-RIL-303 (Reg. No. GP PI698465); MS-RIL-490 (Reg. No. GP PI698466). Fiber strength and length for the seven lines are: MS-RIL 009 (384, 30.0), MS-RIL 037 (369, 31.3), MS-RIL-204 (333, 32.5), MS-RIL-219 (345, 31.8), MS-RIL-282 (295, 31.4), MS-RIL-303 (379, 31.4) and MS-RIL-490 (318, 33.0) kN m kg-1 and mm, respectively. Fibers of MS-RILS 037, 219, and 303 are significantly stronger and longer, fibers of 009 are significantly stronger, and fibers of 204, 282, and 490 are significantly longer than fibers of Acala Ultima or FM 966 the parental lines with the strongest ( 326-334 kN m kg-1) and longest fibers (29.3-30.0 mm). MS-RIL-009, MS-RIL-037, MS-RIL-219, and MS-RIL-303 are homozygous for favorable alleles at the A07 strength QTL. All lines, except MS-RIL-009, are homozygous for favorable alleles at the D11 length QTL. Core Ideas Core Idea 1: Increased cotton fiber strength and length are needed for high speed spinning processes. Core Idea 2: Random mating followed by development of RIL recombines alleles into useful breeding lines. Core Idea 3: MS-RIL-037, 219, and 303 have significantly stronger and longer fiber than best parent. Core idea 4: MS-RIL-204, 282, and 490 have significantly longer fiber than best parent. Core idea 5: MS-RIL-009 has significantly stronger fiber than the best parent.