Dissecting Source-Sink Relationship of Subtending Leaf for Yield and Fiber Quality Attributes in Upland Cotton (Gossypium hirsutum L.)
文献类型： 外文期刊
作者： Mangi, Naimatullah 1 ; Nazir, Mian Faisal 1 ; Wang, Xiaoyan 3 ; Iqbal, Muhammad Shahid 2 ; Sarfraz, Zareen 1 ; Jatoi, Ghulam Hussain 4 ; Mahmood, Tahir 1 ; Ma, Qifeng 1 ; Shuli, Fan 1 ;
作者机构： 1.Chinese Acad Agr Sci ICR, Inst Cotton Res, State Key Lab Cotton Biol, CAAS, Anyang 455000, Peoples R China
2.Ayub Agr Res Inst, Cotton Res Stn, Faisalabad 38850, Pakistan
3.Anyang Inst Technol, Coll Biol & Food Engn, Anyang 455000, Peoples R China
4.Mir Chakar Khan Rind Univ, Dept Agr, Sibi 82000, Pakistan
关键词： source-sink relationship; subtending leaf; cotton boll; multivariate analysis; upland cotton
期刊名称：PLANTS-BASEL （ 影响因子：3.935； ）
ISSN：
年卷期： 2021 年 10 卷 6 期
页码：
收录情况： SCI
摘要： Photosynthesis as a source is a significant contributor to the reproductive sink affecting cotton yield and fiber quality. Moreover, carbon assimilation from subtending leaves adds up a significant proportion to the reproductive sink. Therefore, this study aimed to address the source-sink relationship of boll subtending leaf with fiber quality and yield related traits in upland cotton. A core collection of 355 upland cotton accessions was subjected to subtending leaf removal treatment effects across 2 years. The analysis of variance suggested a significant effect range in the source-sink relationship under subtending leaf removal effects at different growth stages. Further insight into the variation was provided by the correlation analysis and principal component analysis. A significant positive correlation between different traits was observed and the multivariate analysis including hierarchical clustering and principal component analysis (PCA) categorised germplasm accessions into three groups on the basis of four subtending leaf removal treatment effects across 2 years. A set of genotypes with the lowest and highest treatment effects has been identified. Selected accessions and the outcome of the current study may provide a basis for a further study to explore the molecular mechanism of source-sink relationship of boll subtending leaf and utilization of breeding programs focused on cotton improvement.
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