An Evaluation of Gossypium barbadense L. Chromosomes 6 and 17 in the G. hirsutum L. Genome1

Kohel, R. J.; Endrizzi, J. E.; White, Thomas G.

doi:10.2135/cropsci1977.0011183x001700030016x

Cited by 28 publications

(22 citation statements)

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“…Study of several early versions of CS-B lines indicated that chromosome 6 of 3-79 confers a higher lint percentage, finer fiber, and later flowering relative to TM-1, and that chromosome 17 confers short fiber length (Kohel et al 1977). Ren et al (2002) mapped QTL for boll size, lint percentage, fiber length, and fiber elongation on chromosome 16 using 178 families from the cross of a CS-B line for chromosome 16 and TM-1.…”

Section: Discussionmentioning

confidence: 99%

“…This approach has been extended with various modifications to several species. Methods for development of interspecific chromosome substitution in G. hirsutum were outlined by Endrizzi (1963), and several of the initially discovered G. hirsutum monosomics were used to substitute G. barbadense chromosomes into G. hirsutum (White et al 1967;Kohel et al 1977;Endrizzi et al 1984). To date, there have been no formal reports on long-term efforts to enhance productivity in Upland cultivars using interspecific chromosome substitution lines.…”

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confidence: 99%

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Effects of Chromosome-Specific Introgression in Upland Cotton on Fiber and Agronomic Traits

Saha

Jenkins

et al. 2006

Genetics

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Interspecific chromosome substitution is among the most powerful means of introgression and steps toward quantitative trait locus (QTL) identification. By reducing the genetic ''noise'' from other chromosomes, it greatly empowers the detection of genetic effects by specific chromosomes on quantitative traits. Here, we report on such results for 14 cotton lines (CS-B) with specific chromosomes or chromosome arms from G. barbadense L. substituted into G. hirsutum and chromosome-specific F 2 families. Boll size, lint percentage, micronaire, 2.5% span length, elongation, strength, and yield were measured by replicated field experiments in five diverse environments and analyzed under an additive-dominance (AD) genetic model with genotype and environment interaction. Additive effects were significant for all traits and dominance effects were significant for all traits except 2.5% span length. CS-B25 had additive effects increasing fiber strength and fiber length and decreasing micronaire. CS-B16 and CS-B18 had additive effects related to reduced yields. The results point toward specific chromosomes of G. barbadense 3-79 as the probable locations of the genes that significantly affect quantitative traits of importance. Our results provided a scope to analyze individual chromosomes of the genome in homozygous and heterozygous conditions and thus detected novel effects of alleles controlling important QTL.

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Section: Discussionmentioning

confidence: 99%

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confidence: 99%

Effects of Chromosome-Specific Introgression in Upland Cotton on Fiber and Agronomic Traits

Saha

Jenkins

et al. 2006

Genetics

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“…Kohel et al (1977) and Ma and Kohel (1983) evaluated six cotton substitution lines and indicated some quantitative genes on the substituted chromosomes. Recently, we reported chromosome 25 from line 3-79 in a TM-1 background associated with longer and stronger fibers and lower micronaire as well and chromosomes 16 and 18 of 3-79 associated with decreased yields .…”

Section: Introductionmentioning

confidence: 99%

Effects of chromosome 5sh from Gossypium barbadense L. on flower production in G. hirsutum L.

McCarty

Saha

et al. 2006

Euphytica

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Cotton (Gossypium spp.) yield is directly determined by mature bolls that developed from squares and flowers. The first four to six weeks of flowering accounts for the majority of lint yield in upland cotton (G. hirsutum L.) for most cultivated areas of the southern USA cotton belt. In this study, we evaluated 13 cotton chromosome substitution lines (CS-B) and their chromosome specific-F 2 hybrids, TM-1, 3-79, and six cultivars for the number of flowers produced during the first four weeks of flowering. Results showed that CS-B05sh produced more flowers than TM-1 and 3-79 from 10 July to 5 August. The results suggest that when the short arm of chromosome 5 was substituted from 3-79 (G. barbadense L.) into TM-1 (G. hirsutum) a positive genetic association with flower numbers during this flowering period was exhibited. CS-B05sh had comparable flower numbers with three cultivars, Deltapine 90, Phytogen 355, and Stoneville 474 and more flowers than, Sure Grow 747, Sure Grow 125, and Deltapine 5415. Different patterns for additive and dominance effects on cumulative flowers were observed across weeks of flower-

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“…Many studies were focused on whole genome based analyzes (Cherry 1983;Kohel et al 1985;Dani and Kohel 1988;Wu et al 1995;Wang et al 1996a, b;Ye et al 2003). One of the advantages of using chromosome substitution lines is they can be used to associate traits of importance with specific chromosomes (Endrezzi 1963;Kohel et al 1977;Ma and Kohel 1983;Saha et al 2004Saha et al , 2006Jenkins et al 2006Jenkins et al , 2007McCarty et al 2006;Wu et al 2006). The previous studies on cotton chromosome substitution lines were focused on genetic analyzes of agronomic and fiber traits.…”

Section: Discussionmentioning

confidence: 99%

Seed trait evaluation of Gossypium barbadense L. chromosomes/arms in a G. hirsutum L. background

Jenkins

McCarty

et al. 2009

Euphytica

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Investigation of cotton nutritional components is important because its seeds provide a useful nutritional profile and can possibly serve as a biofuel resource. In this study, five cultivars, 13 cotton chromosome substitution (CS-B) lines, their donor parent, '3-79', and their recurrent parent, 'TM-1', were evaluated for seed traits over four environments. A mixed linear model approach with the jackknife method was employed to estimate variance components and to predict genotypic effects for each seed trait. Genotypic effects were more important than genotype by environment interaction for all seed traits. Chromosome associations with these seed traits were detected using the comparative method by comparing the differences between each CS-B line and TM-1. For example, chromosome 4 of 3-79 in TM-1 background was associated with reduced seed index (SI), embryo percentage, protein percentage while associated with increased seed oil percentage and seed fiber percentage. Other chromosome associations with these seed traits were also observed in this study. SI was highly correlated with three seed index traits: seed protein index, seed oil index (OI), and seed fiber index. Lint percentage, boll number, and lint yield were positively correlated with protein percentage while negatively correlated with SI and OI. SI and seed fiber content exhibited negative correlations with micronaire but positive correlations with fiber length and strength. Results suggested that agronomic traits and seed nutrition components can be improved simultaneously.

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An Evaluation of Gossypium barbadense L. Chromosomes 6 and 17 in the G. hirsutum L. Genome¹

Cited by 28 publications

References 0 publications

Effects of Chromosome-Specific Introgression in Upland Cotton on Fiber and Agronomic Traits

Effects of Chromosome-Specific Introgression in Upland Cotton on Fiber and Agronomic Traits

Effects of chromosome 5sh from Gossypium barbadense L. on flower production in G. hirsutum L.

Seed trait evaluation of Gossypium barbadense L. chromosomes/arms in a G. hirsutum L. background

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