scholarly journals Transcriptome Analysis Suggests That Chromosome Introgression Fragments from Sea Island Cotton (Gossypium barbadense) Increase Fiber Strength in Upland Cotton (Gossypium hirsutum)

2017 ◽  
Vol 7 (10) ◽  
pp. 3469-3479 ◽  
Author(s):  
Quanwei Lu ◽  
Yuzhen Shi ◽  
Xianghui Xiao ◽  
Pengtao Li ◽  
Juwu Gong ◽  
...  
Keyword(s):  
Gossypium Hirsutum ◽  
Transcriptome Analysis ◽  
Upland Cotton ◽  
Fiber Strength ◽  
Gossypium Barbadense ◽  
Chromosome Introgression

Fine-mapping qFS07.1 controlling fiber strength in upland cotton (Gossypium hirsutum L.)

2017 ◽  
Vol 130 (4) ◽  
pp. 795-806 ◽  
Author(s):  
Xiaomei Fang ◽  
Xueying Liu ◽  
Xiaoqin Wang ◽  
Wenwen Wang ◽  
Dexin Liu ◽  
...  
Keyword(s):  
Gossypium Hirsutum ◽  
Fine Mapping ◽  
Upland Cotton ◽  
Fiber Strength ◽  
Gossypium Hirsutum L

Photosynthetic Rate, Stomatal Conductance and Leaf Area in Two Cotton Species (Gossypium barbadense and Gossypium hirsutum) and their Relation with Heat Resistance and Yield

1997 ◽  
Vol 24 (5) ◽  
pp. 693 ◽  
Author(s):  
Zhenmin Lu ◽  
Jiwei Chen ◽  
Richard G. Percy ◽  
Eduardo Zeiger
Keyword(s):  
Stomatal Conductance ◽  
Gossypium Hirsutum ◽  
Heat Resistance ◽  
Leaf Area ◽  
Photosynthetic Rate ◽  
Upland Cotton ◽  
Gossypium Barbadense ◽  
Lint Yield ◽  
Historical Series ◽  
Field And Laboratory Conditions

Gossypium barbadense L. (Pima) and Gossypium hirsutum L. (upland) cottons are the two major fibre producing species grown in the south-western United States, where lint yields are adversely affected by high temperatures. In these environments, heat-adapted upland cultivars show higher yields and heat resistance than advanced Pima cultivars. Recent studies with an historical series of commercial Pima cultivars have shown that increases in lint yield and heat resistance are tightly coupled to increases in stomatal conductance and photosynthetic rate, and to decreases in leaf area. In the present study, Pima S-6 and Pima S-7 (advanced Pima cultivars) and Deltapine 90 (advanced upland cultivar) were compared under field and laboratory conditions to determine whether the physiological and morphological gradients found in the Pima historical series extrapolate to upland cotton. In the field, Deltapine 90 showed 25–35% higher stomatal conductance, 35–50% higher photosynthetic rate and 45% smaller leaf area than Pima S-6. The higher photosynthetic rate and stomatal conductance of Deltapine 90 leaves were partially related to their sun-tracking ability. In gas exchange experiments that prevented sun-tracking, the two cultivars had comparable photosynthetic rate as a function of incident radiation, while stomatal conductance was higher in upland cotton. In the 25–35°C range, photosynthetic rate as a function of temperature remained nearly constant in both cultivars, and was higher in upland cotton at all temperatures. Stomatal conductance showed a strong temperature-dependence, and conductance value and the slope of the stomatal response to temperature were higher in Deltapine 90. In progeny from a cross between Deltapine 90 and Pima S-7, the segregation of stomatal conductance in F1 and F2 populations showed a clear genetic component. These results indicate that the differences in photosynthetic rate, stomatal conductance and leaf area associated with increases in lint yield and heat resistance in the Pima historical series are also evident in a comparison between advanced cultivars of upland and Pima cotton. Upland cotton could be used as a source of genetic variation for high stomatal conductance in Pima breeding programs.

scholarly journals Correlation Analysis of stem hardness traits with fiber and yield-related traits in core collections of Gossypium hirsutum

2020 ◽  
Author(s):  
Irum Raza ◽  
Dao-Wu Hu ◽  
Adeel Ahmad ◽  
Hongge Li ◽  
Shou-Pu He ◽  
...  
Keyword(s):  
Gossypium Hirsutum ◽  
Principal Components ◽  
Upland Cotton ◽  
Bending Strength ◽  
Fiber Strength ◽  
Fiber Quality ◽  
High Yield ◽  
Genotypic Difference ◽  
Phenotypic Traits ◽  
Compression Properties

Abstract Background Stem hardness is one of the major influencing factors for plant architecture in upland cotton (Gossypium hirsutum L.). Evaluating hardness phenotypic traits is very important for the selection of elite lines for resistance to lodging in Gossypium hirsutum L. Cotton breeder are interested in using diverse genotypes to enhance fiber quality and high-yield. The research for hardness and its relation with fiber quality and yield were very few. This study was designed to find the relationship of stem hardness traits with fiber quality and yield contributing traits of upland cotton. Results Experiments were carried out to measure the bending, acupuncture, and compression properties of the stem from a collection of upland cotton genotypes, comprising 237 accessions. The results showed that the genotypic difference in stem hardness was highly significant among the genotypes, and the stem hardness traits (BL, BU, AL, AU, CL, and CU) have a positive association with fiber quality traits and yield-related traits. Statistical analyses of the results showed that bending (BL, BU) has a maximum coefficient of variance and trait fiber length and fiber strength have less coefficient of variance among the genotypes. Principal component analysis (PCA) reduced quantitative characters into nine principal components. The first nine principal components (PC) with Eigenvalues >1 explained 86% of the variation among 237 accessions of the cotton crop. Both 2017& 2018, PCA results indicated that BL, BU, FL, FE, and LI variables contributed their variability in PC1 and BU, AU, CU, FD, LP, and FWPB have shown their variability in PC2. Conclusion We describe here, to the best of our knowledge, the systematic study of the mechanism involved in the regulation of enhancing fiber quality and yield by stem bending strength, acupuncture, and compression properties of Gossypium hirsutum crop.

Registration of GA R01-40-08, a Gossypium hirsutum Upland Cotton Germplasm Line with qFL-Chr.1 Introgressed from Gossypium barbadense Conferring Improved Fiber Length

2019 ◽  
Vol 13 (3) ◽  
pp. 406-410
Author(s):  
Nino Brown ◽  
Xinlian Shen ◽  
Edward L. Lubbers ◽  
Pawan Kumar ◽  
Jennifer McBlanchett ◽  
...  
Keyword(s):  
Gossypium Hirsutum ◽  
Upland Cotton ◽  
Fiber Length ◽  
Gossypium Barbadense ◽  
Germplasm Line
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