TY - JOUR
T1 - Development of 'naked-tufted' seed coat mutants for potential use in cotton production
AU - Bechere, Efrem
AU - Auld, D. L.
AU - Hequet, E.
N1 - Funding Information:
Acknowledgment We would like to thank Cotton Incorporated and the International Cotton Research Center at Texas Tech University for their financial support in carrying out this research. This research was carried out at Texas Tech University where the senior author was working as a cotton breeder.
PY - 2009/6
Y1 - 2009/6
N2 - Use of chemical mutagenesis has been highly successful in most major crops. The objective of this research was to develop 'naked-tufted' seed mutants and to incorporate this genetic trait into cotton to enhance crop quality and reduce processing costs. In 1997, six commercial cultivars were treated with 2.45% v/v ethyl methane sulfonate. In 1999, three M3 plants were identified that had partially naked seed coats. The trait was stabilized through individual plant selections from 2000 to 2004. During 2005 and 2006, the homozygous naked-tufted M8 mutant lines were evaluated for lint yield, lint percent, fibers/seed, fibers/mm2, fiber quality, seed oil content, ginning efficiency and yarn spinning performance. Overall, the naked-tufted seed mutants had lower lint yield, lower fibers/seed, lower lint/seed, and lower fibers/mm2 when compared with their original fuzzy parents. The lint turnout from the mutants was similar to the fuzzy parents and the commercial cultivars. The naked-tufted seed mutants had higher seed oil percent, 6-17% lower short fiber contents, significantly reduced seed coat neps (37-42%), higher elongation and yarn tenacity than their fuzzy counterparts. Preliminary data also showed that the naked-tufted mutants required less energy to gin.
AB - Use of chemical mutagenesis has been highly successful in most major crops. The objective of this research was to develop 'naked-tufted' seed mutants and to incorporate this genetic trait into cotton to enhance crop quality and reduce processing costs. In 1997, six commercial cultivars were treated with 2.45% v/v ethyl methane sulfonate. In 1999, three M3 plants were identified that had partially naked seed coats. The trait was stabilized through individual plant selections from 2000 to 2004. During 2005 and 2006, the homozygous naked-tufted M8 mutant lines were evaluated for lint yield, lint percent, fibers/seed, fibers/mm2, fiber quality, seed oil content, ginning efficiency and yarn spinning performance. Overall, the naked-tufted seed mutants had lower lint yield, lower fibers/seed, lower lint/seed, and lower fibers/mm2 when compared with their original fuzzy parents. The lint turnout from the mutants was similar to the fuzzy parents and the commercial cultivars. The naked-tufted seed mutants had higher seed oil percent, 6-17% lower short fiber contents, significantly reduced seed coat neps (37-42%), higher elongation and yarn tenacity than their fuzzy counterparts. Preliminary data also showed that the naked-tufted mutants required less energy to gin.
KW - Ethyl methane sulfonate
KW - Fiber quality
KW - Mutagenesis
KW - Naked seeds
UR - http://www.scopus.com/inward/record.url?scp=67349235260&partnerID=8YFLogxK
U2 - 10.1007/s10681-009-9890-y
DO - 10.1007/s10681-009-9890-y
M3 - Article
AN - SCOPUS:67349235260
SN - 0014-2336
VL - 167
SP - 333
EP - 339
JO - Euphytica
JF - Euphytica
IS - 3
ER -