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- Title
Registration of seven recombinant inbred lines of upland cotton with improved fiber length or strength.
- Authors
Jenkins, Johnie N.; McCarty, Jack C.; Hayes, Russell W.; Wubben, Martin J.; Fang, David D.; Thyssen, Gregory N.; Zeng, Linghe; Campbell, B. Todd; Jones, Don C.
- 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 upper half mean length: MS‐RIL‐009 (Reg. no. GP‐1100, PI 698460), MS‐RIL‐037 (Reg. no. GP‐1101, PI 698461), MS‐RIL‐204 (Reg. no. GP‐1102, PI 698462), MS‐RIL‐219 (Reg no. GP‐1103, PI 698463), MS‐RIL‐282 (Reg. no. GP‐1104, PI 698464), MS‐RIL‐303 (Reg. no. GP‐1105, PI 698465), and MS‐RIL‐490 (Reg. no. GP‐1106, PI 698466). Fiber strength and length for the seven lines are as follows: 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 'Fibermax 966', the parental lines with the strongest (326–334 kN m kg–1) and longest (29.3–30.0 mm) fibers. MS‐RIL‐009, MS‐RIL‐037, MS‐RIL‐219, and MS‐RIL‐303 are homozygous for favorable alleles at the A07 strength quantitative trait locus (QTL). All lines except MS‐RIL‐009 are homozygous for favorable alleles at the D11 length QTL. Core Ideas: Increased cotton fiber strength and length are needed for high‐speed spinning processes.Random mating followed by development of RIL recombines alleles into useful breeding lines.MS‐RIL‐037, 219, and 303 have significantly stronger and longer fiber than the best parent.MS‐RIL‐204, 282, and 490 have significantly longer fiber than the best parent.MS‐RIL‐009 has significantly stronger fiber than the best parent.
- Subjects
COTTON genetics; PLANT populations; PLANT breeding; COTTON yields; CROP yields
- Publication
Journal of Plant Registrations, 2022, Vol 16, Issue 1, p94
- ISSN
1936-5209
- Publication type
Article
- DOI
10.1002/plr2.20193