Comparative genetic variation of fiber quality traits in reciprocal advanced backcross populations

Chandnani, Rahul; Zhang, Zhengsheng; Patel, Jinesh; Adhikari, Jeevan; Khanal, Sameer; He, Daohua; Brown, Nino; Chee, Peng W.; Paterson, Andrew H.

doi:10.1007/s10681-017-2029-7

Cited by 11 publications

(7 citation statements)

References 31 publications

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“…Similarly, for Acala 1517-99 × GA230 (ACGA) population, STR (0.44) showed the highest heritability while UNIF (0.27) showed the lowest heritability. Similar heritability values have been observed in other advanced generations and mutant populations ( Herring et al, 2004 ; Chandnani et al, 2017 ).…”

Section: Resultssupporting

confidence: 85%

Improved Upland Cotton Germplasm for Multiple Fiber Traits Mediated by Transferring and Pyramiding Novel Alleles From Ethyl Methanesulfonate-Generated Mutant Lines Into Elite Genotypes

et al. 2022

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Ethyl methanesulfonate (EMS) mutagenesis offers important advantages for improving crops, such as cotton, with limited diversity in elite gene pools. EMS-induced point mutations are less frequently associated with deleterious traits than alleles from wild or exotic germplasm. From 157 mutant lines that have significantly improved fiber properties, we focused on nine mutant lines here. A total of eight populations were developed by crossing mutant lines in different combinations into GA230 (GA2004230) background. Multiple lines in each population were significantly improved for the fiber trait that distinguished the donor parent(s), demonstrating that an elite breeding line (GA230) could be improved for fiber qualities using the mutant lines. Genotypes improved for multiple fiber traits of interest suggesting that allele pyramiding is possible. Compared to midparent values, individual progeny in the population conferred fiber quality improvements of as much as 31.7% (in population O) for micronaire (MIC), 16.1% (in population P) for length, 22.4% (in population K) for strength, 4.1% (in population Q) for uniformity, 45.8% (in population N) for elongation, and 13.9% (in population O) for lint percentage (lint%). While further testing for stability of the phenotype and estimation of yield potential is necessary, mutation breeding shows promise as an approach to reduce the problem of the genetic bottleneck of upland cotton. The populations developed here may also contribute to identifying candidate genes and causal mutations for fiber quality improvement.

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Section: Resultssupporting

confidence: 85%

Improved Upland Cotton Germplasm for Multiple Fiber Traits Mediated by Transferring and Pyramiding Novel Alleles From Ethyl Methanesulfonate-Generated Mutant Lines Into Elite Genotypes

et al. 2022

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“…To know hereditary fluctuation in a group of plants of the same species is of incredible importance to clarify the most fitting breeding strategies for the improvement of various parameters (Chandnani et al, 2017;Hinze et al, 2017;Sun et al, 2017). The expanding pattern in the production has been contained with constant endeavors of plant reproducer, even more endeavors are needed for expanded and maintainable cotton production.…”

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confidence: 99%

Assessment of Genetic Variability in F4 Populations of Upland Cotton (Gossypium hirsutum L.)

Abro¹,

Kaloi²,

Sootaher³

et al. 2021

SJA

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P akistan is the 4 th largest cotton producing and 3 rd cotton consuming country, however, the yield is low as compared other cotton producing countries (Nazir et al., 2020). The main reason of low yielding potential of existing germplasm is influence of biotic and abiotic factors and cotton production can be manage by introduction of new cotton varieties. Pakistan is leading in exporting cotton yarn and third in the export of raw material of the cotton crop worldwide (Nizamani et al., 2017). The nation of Pakistan largely depends on cotton industries with relation to textile sector. This fiber crop is on the top Abstract | The current investigations were carried out during 2016-2017 to determine genetic variability, heritability, and genetic gain in nine F 4 segregating populations for morphological, yield and fiber quality related traits in upland cotton. Significant differences were observed among genotypes, parents, F 4 populations and parents x F 4 populations for all the studied attributes which articulated greater genetic variation in the breeding material. Heritability estimates were moderate to high for all the traits. The F 4 population CRIS-134 x FH-113 displayed the highest heritability estimates for plant height (95.24%). The maximum heritability for sympodial branches plant -1 (85.30%) and seed index (82.02%) were exhibited by the F 4 population CRIS-342 x IR-3701. The F 4 population CRIS-342 x Neelum-121 manifested the highest heritability values for bolls plant -1 (90.81%) and boll weight (96.85%). For seed cotton yield plant -1 and ginning outturn, the highest heritability values (90.08 and 90.20%) were confirmed by the F 4 population CRIS-342 x MNH-886. For staple length, the promising heritability was discovered in the F 4 population CRIS-134 x Neelum-121 (85.45%). Genetic gain values were low to high for all traits. Results suggested that above F 4 populations indicated their potential for various yield and fiber traits through heritability coupled with genetic gain to be used in future breeding programs for improving seed cotton yield and fiber quality traits in upland cotton.

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“…From a genetic perspective, multiple independent quantitative trait loci (QTL) analyses have been performed to identify chromosomal regions contributing to phenotypic variation among various cotton genotypes. Most QTL analyses to date have focused either on crosses between modern cultivars of G. hirsutum or on crosses between cultivated forms of G. hirsutum with G. barbadense, another cultivated species which possesses superior fiber quality but with the limitations of lower yield and a narrower range of adaptation (Fang et al 2017c;Chandnani et al 2017;Hu et al 2019). Interspecific cotton crosses often generate negative genetic correlations between fiber quality and lint yield, and these frequently suffer from F 2 breakdown (reviewed in (Zhang et al 2014)).…”

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Genetic Analysis of the Transition from Wild to Domesticated Cotton (Gossypium hirsutumL.)

Grover

Yoo

Meng

et al. 2020

G3 Genes|Genomes|Genetics

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The evolution and domestication of cotton is of great interest from both economic and evolutionary standpoints. Although many genetic and genomic resources have been generated for cotton, the genetic underpinnings of the transition from wild to domesticated cotton remain poorly known. Here we generated an intraspecific QTL mapping population specifically targeting domesticated cotton phenotypes. We used 466 F2 individuals derived from an intraspecific cross between the wild Gossypium hirsutum var. yucatanense (TX2094) and the elite cultivar G. hirsutum cv. Acala Maxxa, in two environments, to identify 120 QTL associated with phenotypic changes under domestication. While the number of QTL recovered in each subpopulation was similar, only 22 QTL were considered coincident (i.e., shared) between the two locations, eight of which shared peak markers. Although approximately half of QTL were located in the A-subgenome, many key fiber QTL were detected in the D-subgenome, which was derived from a species with unspinnable fiber. We found that many QTL are environment-specific, with few shared between the two environments, indicating that QTL associated with G. hirsutum domestication are genomically clustered but environmentally labile. Possible candidate genes were recovered and are discussed in the context of the phenotype. We conclude that the evolutionary forces that shape intraspecific divergence and domestication in cotton are complex, and that phenotypic transformations likely involved multiple interacting and environmentally responsive factors.

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Comparative genetic variation of fiber quality traits in reciprocal advanced backcross populations

Cited by 11 publications

References 31 publications

Improved Upland Cotton Germplasm for Multiple Fiber Traits Mediated by Transferring and Pyramiding Novel Alleles From Ethyl Methanesulfonate-Generated Mutant Lines Into Elite Genotypes

Improved Upland Cotton Germplasm for Multiple Fiber Traits Mediated by Transferring and Pyramiding Novel Alleles From Ethyl Methanesulfonate-Generated Mutant Lines Into Elite Genotypes

Assessment of Genetic Variability in F4 Populations of Upland Cotton (Gossypium hirsutum L.)

Genetic Analysis of the Transition from Wild to Domesticated Cotton (Gossypium hirsutumL.)

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