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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 #320801
Title: Four chromosome-specific (Gossypium barbadense chromosome 5sh) Upland cotton RILs with improved elongation

Author
item Saha, Sukumar
item Jenkins, Johnie
item McCarty, Jack
item Hayes, Russell - Russ
item STELLY, DAVID - Texas A&M University
item Campbell, Benjamin - Todd

Submitted to: Journal of Plant Registrations
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 1/2/2017
Publication Date: 4/27/2017
Publication URL: https://handle.nal.usda.gov/10113/5763062
Citation: Saha, S., Jenkins, J.N., McCarty Jr, J.C., Hayes, R.W., Stelly, D.M., Campbell, B.T. 2017. Four chromosome-specific (Gossypium barbadense chromosome 5sh) Upland cotton RILs with improved elongation. Journal of Plant Registrations. 11(2):165-167.

Interpretive Summary: The textile market requires cotton fibers with improved potential for tensile properties. Fiber elongation (ability to stretch before breaking) is a very critical trait in determining tensile properties and yarn quality. The United States Department of Agriculture, Agricultural Research Service, Mississippi Agriculture and Forestry Experiment Station and the Texas A&M AgriLife Research developed and jointly announced to release six germplasm lines of Upland cotton (Gossypium hirsutum), CS-B05shRIL93, CS-B05shRI-83, CS-B05shRIL-68, CS-B05shRIL-66, CS-B05shRIL-34 and CS-B05shRIL-10 which have excellent elongation percentages of 7.64, 7.49,7.84, 7.37, 7.26 and 7.26, respectively, under a range of growing environments. The fiber properties were compared between these CS-B05shRILs with the commercial lines of ‘DP 393’ (PVP200400266) and PhytoGen brand PHY 370 WR, which had elongation percentages of 6.86 and 6.25, respectively. However, agronomic traits of both commercial lines were better than those of the released lines. A chromosome specific recombinant inbred line (CS-B05shRIL) population was created from a cross of TM-1, the genetic standard line of Gossypium hirsutum L. and CS-B05sh, a previously released interspecific chromosome substitution line in which all of the chromosome pairs are genetically similar to TM-1, except for the short arm of chromosome five, substituted from 3-79 (G. barbadense L.). Six of the fifty CS-B05sh RILs were selected and released based on their improved fiber quality traits especially elongation percentage ranging from 7.26 to 7.84. These germplasm lines are being released to incorporate good fiber quality genes especially for elongation percentage from G. barbadense with reduced genetic drag effect.

Technical Abstract: A chromosome specific recombinant inbred line (CS-B05shRIL) population was created from a cross of TM-1, the genetic standard line of Gossypium hirsutum L. and CS-B05sh, a previously released interspecific chromosome substitution line in which all of the chromosome pairs are genetically similar to TM-1, except for the short arm of chromosome five, substituted from 3-79 (G. barbadense L.). Six of the fifty CS-B05sh RILs were selected and released based on their improved fiber quality traits especially elongation percentage ranging from 7.26 to 7.84. The fiber properties were compared between these CS-B05ShRILs with the commercial lines of DP 393 and PHY 370 WR, which had elongation percentages of 6.86 and 6.25. However, commercial lines were better in agronomic traits compared to the released lines. Fiber elongation (ability to stretch before breaking) is a very critical trait in determining yarn quality. The combination of strength and elongation in a fiber determines the energy needed to break either a fiber or a yarn. The global market demand for cotton varieties with improved potential for tensile properties due to change in textile technologies. These germplasm lines are being released to incorporate good fiber quality genes especially for elongation percentage from G. barbadense with reduced genetic drag effect.