中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Variations in phenological, physiological, plant architectural and yield-related traits, their associations with grain yield and genetic basis

文献类型:期刊论文

作者Li, Yibo5; Tao, Fulu4,5; Hao, Yuanfeng3; Tong, Jingyang3; Xiao, Yonggui3; He, Zhonghu3; Reynolds, Matthew2
刊名ANNALS OF BOTANY
出版日期2023-04-01
卷号N/A
ISSN号1095-8290
关键词Genetic variation ideotypes photosynthetic traits Triticum aestivum yield potential
DOI10.1093/aob/mcad003
文献子类Article; Early Access
英文摘要Background and Aims Physiological and morphological traits play essential roles in wheat (Triticum aestivum) growth and development. In particular, photosynthesis is a limitation to yield. Increasing photosynthesis in wheat has been identified as an important strategy to increase yield. However, the genotypic variations and the genomic regions governing morphological, architectural and photosynthesis traits remain unexplored. Methods Here, we conducted a large-scale investigation of the phenological, physiological, plant architectural and yield-related traits, involving 32 traits for 166 wheat lines during 2018-2020 in four environments, and performed a genome-wide association study with wheat 90K and 660K single nucleotide polymorphism (SNP) arrays. Key Results These traits exhibited considerable genotypic variations in the wheat diversity panel. Higher yield was associated with higher net photosynthetic rate (r = 0.41, P < 0.01), thousand-grain weight (r = 0.36, P < 0.01) and truncated and lanceolate shape, but shorter plant height (r = -0.63, P < 0.01), flag leaf angle (r = -0.49, P < 0.01) and spike number per square metre (r = -0.22, P < 0.01). Genome-wide association mapping discovered 1236 significant stable loci detected in the four environments among the 32 traits using SNP markers. Trait values have a cumulative effect as the number of the favourable alleles increases, and significant progress has been made in determining phenotypic values and favourable alleles over the years. Eleven elite cultivars and 14 traits associated with grain yield per plot (GY) were identified as potential parental lines and as target traits to develop high-yielding cultivars. Conclusions This study provides new insights into the phenotypic and genetic elucidation of physiological and morphological traits in wheat and their associations with GY, paving the way for discovering their underlying gene control and for developing enhanced ideotypes in wheat breeding.
WOS关键词GENOME-WIDE ASSOCIATION ; LEAF PHOTOSYNTHETIC RATE ; BREAD WHEAT ; BIOMASS ACCUMULATION ; STOMATAL CONDUCTANCE ; GENOTYPIC VARIATION ; AGRONOMIC TRAITS ; WATER-CONTENT ; GROWTH-STAGES ; COMMON WHEAT
WOS研究方向Plant Sciences
出版者OXFORD UNIV PRESS
WOS记录号WOS:000942781200001
源URL[http://ir.igsnrr.ac.cn/handle/311030/190354]  
专题陆地表层格局与模拟院重点实验室_外文论文
作者单位1.Int Maize & Wheat Improvement Ctr CIMMYT, Texcoco, Mexico
2.Chinese Acad Agr Sci, Inst Crop Sci, Beijing 100081, Peoples R China
3.Nat Resources Inst Finland Luke, Helsinki, Finland
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, CAS, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714
Li, Yibo,Tao, Fulu,Hao, Yuanfeng,et al. Variations in phenological, physiological, plant architectural and yield-related traits, their associations with grain yield and genetic basis[J]. ANNALS OF BOTANY,2023,N/A.
APA Li, Yibo.,Tao, Fulu.,Hao, Yuanfeng.,Tong, Jingyang.,Xiao, Yonggui.,...&Reynolds, Matthew.(2023).Variations in phenological, physiological, plant architectural and yield-related traits, their associations with grain yield and genetic basis.ANNALS OF BOTANY,N/A.
MLA Li, Yibo,et al."Variations in phenological, physiological, plant architectural and yield-related traits, their associations with grain yield and genetic basis".ANNALS OF BOTANY N/A(2023).

入库方式: OAI收割

来源:地理科学与资源研究所

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