Broadening the Genetic Base of Upland Cotton in U.S. Cultivars – Genetic Variation for Lint Yield and Fiber Quality in Germplasm Resources

Zeng, Linghe

doi:10.5772/57606

Cited by 8 publications

(11 citation statements)

References 44 publications

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“…In breeding practice, breeders can decide whether to start selection in early generations based on additive gene effects or the ratio of dominance gene effects (V D ) over additive gene effects (V A ). Zeng (2014) hypothesized that the increase of the dominance gene effects in these introgression populations was due to the addition of nonadditive genes by introgression from wild or exotic cotton. There are many reports on genetic variances for lint yield and yield components in upland cotton.…”

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confidence: 99%

Comparative Genetic Analysis of Lint Yield and Fiber Quality among Single, Three‐way, and Double Crosses in Upland Cotton

Zeng

Bechere

2017

Crop Science

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Appropriate crossing systems for genetic improvement of quantitative traits are critical in cotton breeding. Determination of genetic variance for lint yield and fiber quality in three different crossing schemes (single cross [SC], three‐way cross [TWC], and double cross [DC]) of upland cotton (Gossypium histutum L.) will help breeders decide which crossing scheme to use in hybrid production and pure‐line development. This study was designed to compare agronomic performance and fiber quality among SCs, TWCs, and DCs and determine genetic variance for evaluated traits in the three crossing systems. A balanced set of 10 F2 hybrid populations from each crossing system was planted with their five parents in 2013, 2014, and 2015. There were no significant differences for lint yield and fiber properties between SC and the other two crossing systems. When genetic variance components were expressed as proportions of the total phenotypic variances (VP), there were mainly dominance (VD) and environmental variances (VE) for lint yield in F2 hybrids of all three crossing systems. The predominance of VD for lint yield suggests that selection would be more successful in later generations than in early generations among lines derived from SCs, TWCs, and DCs. The proportion of dominance (VD/VP) and additive genetic variances (VA/VP) for yield components was greater in TWCs and DCs than in SCs. Midparent heterosis (MPH) of lint yield in TWCs increased compared with SCs. Results indicate that TWCs may be used to enhance heterosis in hybrids, and TWCs and DCs may be used in pure‐line development to increase yield potential of upland cotton cultivars.

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confidence: 99%

Comparative Genetic Analysis of Lint Yield and Fiber Quality among Single, Three‐way, and Double Crosses in Upland Cotton

Zeng

Bechere

2017

Crop Science

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“…The negative associations between lint yield and fiber strength have been a persistent problem for cotton breeders for a long time (Miller and Rawlings, 1967). Zeng (2014) reported that these negative associations have been significantly reduced in some germplasm populations developed by public cotton breeding programs. In a recent report, however, analysis of 102 strains and commercial cultivars evaluated across 56 environments in the Regional High Quality tests from 2001 to 2007 showed that genetic correlations between lint yield and fiber strength and between lint yield and fiber length were −0.63 and −0.56, respectively (Meredith and Nokes, 2011).…”

Section: Characteristicsmentioning

confidence: 99%

Registration of Cotton Germplasm USDA MD 16‐1 and USDA MD 16‐2 with Enhanced Lint Yield and Fiber Quality

Bechere¹,

Manning²

2018

J of Plant Registrations

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Upland cotton (Gossypium hirsutum L.) germplasm USDA MD 16‐1 (Reg. No. CV‐138, PI 682133), and USDA MD 16‐2 (Reg. No. CV‐139, PI 682134) have enhanced yield and good fiber quality. These germplasm lines were developed by the USDA‐ARS, Stoneville, MS, and released on 27 June 2017. Two crosses, MD 25‐51 × MD 10‐9‐1 and MD 25‐51 × MD 10‐9‐10 were made at the Jamie Whitten Delta State Research Center, USDA‐ARS, Stoneville, in 2010. The F1 population was grown at the winter nursery in Mexico in 2010. The F2 populations were planted at Stoneville in 2011. One boll per plant was bulked, and the F3 population was grown in 2012. This process was repeated during 2013 (F4). In 2014, individual plants (F5) were selected for progeny rows. In 2015 (F6) and 2016 (F7) selected progeny rows were tested for yield and fiber quality, and one progeny row from MD 25‐51 × MD 10‐9‐1 (named USDA MD 16‐1) and another progeny row from MD 25‐51 × MD 10‐9‐10 (named USDA MD 16‐2) were identified for their superior lint yield and fiber quality. During 2015 and 2016, the two germplasm were planted along with the check cultivars in randomized complete designs at Stoneville and were evaluated at the 2016 Regional Breeders’ Testing Network (RBTN) test across 13 locations spanning across all cotton growing regions. Data were collected on lint yield and quality parameters. Data at Stoneville indicated that both USDA MD 16‐1 and USDA MD 16‐2 had 9 to 16% and 6 to 14% higher lint yield than the two check cultivars, MD 25 and MD 10‐5, respectively In the 2016 RBTN across 13 locations, USDA MD 16‐1 was the top yielder (1710 kg ha−1), and USDA MD 16‐2 had the strongest fiber (355 kN m kg−1).

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“…The negative associations between lint yield and fiber strength have been a persistent problem for cotton breeders (Miller and Rawlings, 1967). Zeng (2014) reported that these negative associations have been significantly reduced in some germplasm populations developed by public cotton breeding programs. In a recent analysis of 102 strains and commercial cultivars evaluated across 56 environments in the Regional High Quality (RHQ) tests from 2001 to 2007, the genetic correlations between lint yield and fiber strength and between lint yield and fiber length were −0.63 and −0.56, respectively (Meredith and Nokes, 2011).…”

Section: Characteristicsmentioning

confidence: 99%

Registration of Five Upland Cotton Mutant Germplasm Lines with Superior Fiber Length, Strength, and Uniformity

Bechere¹,

Zeng²,

Auld

2017

J of Plant Registrations

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Mutant germplasm lines MD 15‐Mut 13 (Reg. No. GP‐1025, PI 681706), MD 15‐Mut 31 (Reg. No. GP‐1026, PI 681707), MD 15‐Mut 61 (Reg. No. GP‐1027, PI 681708), MD 15‐Mut 89 (Reg. No. GP‐1028, PI 681709), and MD 15‐Mut 138 (Reg. No. GP‐1029, PI 681710) are unique genotypes of upland cotton (Gossypium hirsutum L.). These germplasm lines were developed by the USDA‐ARS, Stoneville, MS, and released on 18 Apr. 2017. In 2008, about 5000 seeds of the germplasm line MD 15 were chemically mutagenized with 3.2% (v/v) of ethyl methane sulfonate. The treated seeds were hand planted in the field in 2008 to produce the M0 generation. One boll was hand‐picked from each of 2000 surviving plants, and this bulk was planted in 2009 to produce the M1. In 2010, 2011, and 2012, the same procedure was followed to produce the M2, M3, and M4 generations, respectively. Individual progeny rows of the best fiber quality mutants, along with the check genotypes, were tested in replicated trials at Stoneville during 2013 to 2016. These tests identified five mutants designated as MD 15‐Mut 13, MD 15‐Mut 31, MD 15‐Mut 61, MD 15‐Mut 89 and MD 15‐Mut 138 with outstanding fiber length, strength, and uniformity. These mutants have long to extra‐long, very strong, and highly uniform fibers.

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Broadening the Genetic Base of Upland Cotton in U.S. Cultivars – Genetic Variation for Lint Yield and Fiber Quality in Germplasm Resources

Cited by 8 publications

References 44 publications

Comparative Genetic Analysis of Lint Yield and Fiber Quality among Single, Three‐way, and Double Crosses in Upland Cotton

Comparative Genetic Analysis of Lint Yield and Fiber Quality among Single, Three‐way, and Double Crosses in Upland Cotton

Registration of Cotton Germplasm USDA MD 16‐1 and USDA MD 16‐2 with Enhanced Lint Yield and Fiber Quality

Registration of Five Upland Cotton Mutant Germplasm Lines with Superior Fiber Length, Strength, and Uniformity

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