RETRACTED: Study of Genetic Diversity in Germplasm  of Upland Cotton (&amp;lt;i&amp;gt;Gossypium  hirsutum&amp;lt;/i&amp;gt; L.) in Pakistan

Talib, Irfan; Ali, Syed Shahid; Pervez, Muhammad Wajid; Hassan, Muhammad Umair; Hussain, Rashid; Rehman, Khalil Ur; Firdous, Ramla; Hussain, Sajid

doi:10.4236/ajps.2015.613218

Cited by 3 publications

(2 citation statements)

References 14 publications

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“…To select the genotype with suitable flowering period, it is necessary to generate information on genetic variability in germplasm for flowering period along with higher yield potential. The variability of various yield and yield contributing traits has been studied by various workers (Hinze et al, 2011;Talib et al, 2015). However, studies for variation in flowering period in relation to seed cotton yield, ginning out turn and other desirable traits in genetic resources of G. hirsutum cotton is either not or meagerly available.…”

Section: Issn: 2319-7706 Volume 7 Number 10 (2018)mentioning

confidence: 99%

Flowering Period Variability in Relation to Seed Cotton Yield, Ginning Out Turn and Other Desirable Traits in Genetic Resources of G. hirsutum Cotton

Meena¹,

Monga²,

Sain³

et al. 2018

Int.J.Curr.Microbiol.App.Sci

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Section: Issn: 2319-7706 Volume 7 Number 10 (2018)mentioning

confidence: 99%

Flowering Period Variability in Relation to Seed Cotton Yield, Ginning Out Turn and Other Desirable Traits in Genetic Resources of G. hirsutum Cotton

Meena¹,

Monga²,

Sain³

et al. 2018

Int.J.Curr.Microbiol.App.Sci

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“…Genetic diversity assessment based on phenotype traits is the most intuitive and basic method, and it can provides important information for plant breeders (Ge and Hong, 1994;Pan et al, 2015). A few studies evaluating the genetic diversity using phenotype traits have been reported (Van Esbroeck et al, 1999;Chen and Du, 2006;He et al, 2010;Talib et al, 2015). Although the phenotypic differences can reflect genetic diversity to some extent, the number of phenotype traits is relatively limited and susceptible to external environmental conditions (Qian et al, 1994).…”

mentioning

confidence: 99%

Genetic Diversity Assessment of Upland Cotton Variety Resources in China Based on Phenotype Traits and Molecular Markers

Song

Zhu

et al. 2017

Crop Science

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Evaluating germplasm resources comprehensively and accurately is of great significance to their efficient utilization. To comprehensively characterize the genetic relationships among upland cotton (Gossypium hirsutum L.) varieties, the genetic diversity of 172 upland cotton varieties in China was assessed using 18 phenotype traits and 154 polymorphic simple sequence repeat molecular markers. According to the variation analysis of phenotype traits, the variation coefficient, which reflects the level of phenotypic genetic diversity, varied widely among traits. The analysis of marker polymorphism showed that the average allele number, gene diversity index, and polymorphism information content were 2.62, 0.3985 and 0.3343, respectively, indicating a relatively low level of genetic diversity. All varieties grouped into five clusters (I–V) based on phenotypic data. Among the five clusters, clusters III and IV further grouped into four (III‐1, III‐2, III‐3, and III‐4) and two subclusters (IV‐1 and IV‐2), respectively. Cluster I and subclusters III‐1, III‐3, III‐4, and IV‐1 displayed prominent values in some of the 18 traits. Then, all varieties grouped into nine clusters (A–I) based on molecular marker data. Clusters C, D, E, F, H, and I displayed prominent values in some of the 18 traits. Clustering based on phenotype traits and/or molecular markers was largely congruent with varietal pedigree information, but the clustering of varieties was independent of the varietal ecological sources. Results in this study suggest that varieties with prominent complementary traits in different phenotype‐ and/or marker‐ based clusters can be selected as parents in breeding.

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Simple sequence repeat markers associated/linked with agronomic traits, as core primers, are eminently suitable for DNA fingerprinting in Upland cotton

Chen

et al. 2018

Breed. Sci.

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Analyzing the genetic differences among crop germplasm resources scientifically and accurately is very important for the selection of core accessions, the identification of new cultivars, and the determination of seed purity. However, phenotypic selection per se is not sufficient to identify genetically distinct accessions. In this study, 26 out of 83 simple sequence repeat markers associated/linked with cotton important agronomic traits derived from our previous and other published research, corresponding to the 26 chromosomes of Upland cotton (Gossypium hirsutum L.), were selected as core primers for DNA fingerprinting construction. The 26 markers showed clear band patterns, good repeatability and high polymorphism. The average alleles, gene diversity index and polymorphism information content were 3.12, 0.4312 and 0.3830, respectively. Using TM-1, a genetic standard line for Upland cotton, as the control, DNA fingerprinting pattern and DNA barcodes were obtained based on the core primers. There was a significant positive correlation between genetic distance matrix determined using 26 core primers and that determined using more primers (335) derived from previous research, further suggesting that the core primers were eminently suitable for DNA fingerprinting in Upland cotton. This study provides a molecular basis for assessing identification, authenticity and seed purity of cotton cultivars.

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RETRACTED: Study of Genetic Diversity in Germplasm of Upland Cotton (<i>Gossypium hirsutum</i> L.) in Pakistan

Cited by 3 publications

References 14 publications

Flowering Period Variability in Relation to Seed Cotton Yield, Ginning Out Turn and Other Desirable Traits in Genetic Resources of G. hirsutum Cotton

Flowering Period Variability in Relation to Seed Cotton Yield, Ginning Out Turn and Other Desirable Traits in Genetic Resources of G. hirsutum Cotton

Genetic Diversity Assessment of Upland Cotton Variety Resources in China Based on Phenotype Traits and Molecular Markers

Simple sequence repeat markers associated/linked with agronomic traits, as core primers, are eminently suitable for DNA fingerprinting in Upland cotton

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