Registration of Fourteen Cotton Germplasm Lines

Smith, C. Wayne; Niles, G. A.

doi:10.2135/cropsci1988.0011183x002800030042x

Cited by 6 publications

(6 citation statements)

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“…The F 3 seeds from the individual F 2 plants were sent to Tecoman, Mexico, for seed increase. The resulting F 4 seeds were used for a field test with three replications in 2012 that contained 34 entries, including the 18 new glandless lines and other glandless germplasm lines released by other programs (Owen and Gannaway, 1995;Smith and Niles, 1988). From the 18 F 4 lines, a total of 77 selections were then made, and the F 5 seed sent to Tecoman, Mexico for generation advance to F 6 and seed increase to be used in four replicated tests (designated trials S, T, U, and V) each with 32 entries in 2013.…”

Section: Methodsmentioning

confidence: 99%

“…Extensive activities in glandless cotton breeding and research have been conducted since the 1960s, resulting in the release of many glandless cotton germplasms. There were intermittent breeding activities for glandless cotton until the late 1990s (Dobbs and Oakley, 2000;Owen and Gannaway, 1995;Shepherd, 1982;Smith and Niles, 1988), but the best existing high-yielding glandless germplasm still had a 10 to 35% yield gap compared to 'Acala 1517-08' and a 25 to 54% yield gap compared to current commercial transgenic cotton (Idowu et al, 2014;Zhang et al, 2014). Zhang et al (2014) further showed that selection within the existing glandless germplasm could improve yield, but an 11 to 18% yield gap still existed.…”

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confidence: 99%

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Transgressive Segregation in an Acala Glanded × Acala Glandless Hybrid Population for the Development of Glandless Cotton Germplasm

Zhang¹,

Flynn²,

Idowu³

et al. 2016

JCS

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Improvement in lint yield is vital to commercial production of glandless cotton. The objective of this study was to determine if glanded ‘Acala 1517-08’ could be converted to glandless cotton without a yield penalty by crossing breeding with an obsolete glandless cotton. From 500 F2 plants, 18 glandless individuals were selected, and their F4 lines were compared with both parents. This led to a selection of 77 F6 lines for further replicated field testing. Only five F6 lines produced 90 to 96% of Acala 1517-08 lint yield (LY), while three lines had significantly lower LY than the lower parent ‘Acala GLS’. Transgressive segregation in the negative direction was also observed for boll weight (BW) and lint percent (LP) in that four and 22 F6 lines had significantly lower values than the lower parent, respectively. Four F6 lines had significantly lower fiber length (UHM) than the lower parent Acala 1517-08, while five lines had longer UHM than the higher parent Acala GLS. Ten F6 lines had weaker fibers than the lower parent Acala 1517-08, but none had stronger fibers than Acala GLS. Most F6 lines had micronaire (MIC) between the two parents except for one with higher MIC than the higher parent and five with lower MIC than the lower parent Acala GLS. In conclusion, positive transgressive segregation for LY, LP and BW should not be expected in this Acala × Acala cross, while negative transgressive segregations occurred frequently for the three traits and fiber strength. For UHM and MIC, negative transgressive segregations occurred more frequently than positive ones. Overall, there was no transgressive segregation for fiber uniformity, elongation and short fiber content.

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Section: Methodsmentioning

confidence: 99%

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confidence: 99%

Transgressive Segregation in an Acala Glanded × Acala Glandless Hybrid Population for the Development of Glandless Cotton Germplasm

Zhang¹,

Flynn²,

Idowu³

et al. 2016

JCS

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“…However, dehulled, roasted, and whole glandless kernel products and associated business did not gain much of the market, due to quality control, insects, and marketing issues, in addition to possible allergenic reactions (Hinze and Kohel, 2012). Since then, there were intermittent breeding activities until the late 1990s (Shepherd, 1982;Smith and Niles, 1988;Owen and Gannaway, 1995;Dobbs and Oakley, 2000). Using the glandless trait as a genetic marker, breeding populations using Upland cotton lines with varying gland densities involving glandless cotton were recently developed (Gutiérrez et al, 2006;Hinze et al, 2014).…”

Section: Breeding For Glandless Upland Cottonmentioning

confidence: 99%

Genetics and Breeding for Glandless Upland Cotton With Improved Yield Potential and Disease Resistance: A Review

Zhang

Wedegaertner

2021

Front. Plant Sci.

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Glandless cotton (devoid of toxic gossypol) can be grown as a triple-purpose crop for fiber, feeds, and food (as an oil and protein source). However, its sensitivity to insect pests and its low yield due to the lack of breeding activities has prevented the realization of its potential in commercial seed production and utilization. Since the mid-1990s, the commercialization of bollworm and budworm resistant Bt cotton and the eradication of boll weevils and pink bollworms have provided an opportunity to revitalize glandless cotton production in the United States. The objectives of this study were to review the current status of genetics and breeding for glandless cotton, with a focus on the progress in breeding for glandless Upland cotton in New Mexico, United States. Because there existed a 10–20% yield gap between the best existing glandless germplasm and commercial Upland cultivars, the breeding of glandless Upland cultivars with improved yield and disease resistance was initiated at the New Mexico State University more than a decade ago. As a result, three glandless Upland cultivars, i.e., long-staple Acala 1517-18 GLS, medium staple NuMex COT 15 GLS, and NuMex COT 17 GLS with Fusarium wilt race 4 resistance were released. However, to compete with the current commercial glanded cotton, more breeding efforts are urgently needed to introduce different glandless traits (natural mutations, transgenic or genome-editing) into elite cotton backgrounds with high yields and desirable fiber quality.

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“…TAM 96WD‐18 resulted from the cross of TAM 87G 3 –27, a breeding line with pedigree AET‐108/1209‐619‐2S‐77//PD 6992 developed in the Cotton Improvement Lab (Smith and Niles, 1994), and TAM 88G‐104, a high‐yielding picker‐type upland cotton with resistance to silverleaf whitefly [ Bemesis argentifolli (Perring and Bellows)] (Smith, 2001). TAM 88G‐104 was developed from the cross of ‘Deltapine 90’ (Calhoun et al, 1994) and CS‐8606 (Smith and Niles, 1988), and released as ‘Texas 418’. TAM 96WD‐18 was derived from a single F 2:3 plant selected on the basis of its apparent yield potential, fiber properties, and overall plant conformation.…”

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confidence: 99%

Registration of TAM 96WD‐18 Upland Cotton Germplasm Line with Improved Fiber Length and Strength

2005

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Registration of Fourteen Cotton Germplasm Lines

Cited by 6 publications

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Transgressive Segregation in an Acala Glanded × Acala Glandless Hybrid Population for the Development of Glandless Cotton Germplasm

Transgressive Segregation in an Acala Glanded × Acala Glandless Hybrid Population for the Development of Glandless Cotton Germplasm

Genetics and Breeding for Glandless Upland Cotton With Improved Yield Potential and Disease Resistance: A Review

Registration of TAM 96WD‐18 Upland Cotton Germplasm Line with Improved Fiber Length and Strength

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