TY  - JA
AU  - Yangyang Liu
AU  - Rui Yu
AU  - Liping Shen
AU  - Mengjing Sun
AU  - Yanchun Peng
AU  - Qingdong Zeng
AU  - Kuocheng Shen
AU  - Xuchang Yu
AU  - He Wu
AU  - Botao Ye
AU  - Ziying Wang
AU  - Zhiweng Sun
AU  - Danning Liu
AU  - Xiaohui Sun
AU  - Zhiliang Zhang
AU  - Jiayu Dong
AU  - Jing Dong
AU  - Dejun Han
AU  - He Zhonghu
AU  - Yuanfeng Hao
AU  - Jianhui Wu
AU  - Zifeng Guo
TI  - Genomic insights into the modifications of spike morphology traits during wheat breeding
SN  - 0140-7791
PY  - 2024///
CY  - Oxford (United Kingdom)
PB  - John Wiley & Sons Ltd.
KW  - Evolution
KW  - AGROVOC
KW  - Genetics
KW  - Grain
KW  - Yields
KW  - Genome-wide association studies
KW  - Wheat
KW  - Breeding
KW  - Spikes
N1  - Peer review; Early View; Open Access
N2  - Over the past century, environmental changes have significantly impacted wheat spike morphology, crucial for adaptation and grain yield. However, the changes in wheat spike modifications during this period remain largely unknown. This study examines 16 spike morphology traits in 830 accessions released from 1900 to 2020. It finds that spike weight, grain number per spike (GN), and thousand kernel weight have significantly increased, while spike length has no significant change. The increase in fertile spikelets is due to fewer degenerated spikelets, resulting in a higher GN. Genome-wide association studies identified 49,994 significant SNPs, grouped into 293 genomic regions. The accumulation of favorable alleles in these genomic regions indicates the genetic basis for modification in spike morphology traits. Genetic network analysis of these genomic regions reveals the genetic basis for phenotypic correlations among spike morphology traits. The haplotypes of the identified genomic regions display obvious geographical differentiation in global accessions and environmental adaptation over the past 120 years. In summary, we reveal the genetic basis of adaptive evolution and the interactions of spike morphology, offering valuable resources for the genetic improvement of spike morphology to enhance environmental adaptation
UR  - https://hdl.handle.net/10883/34679
DO  - https://doi.org/10.1111/pce.15117
T2  - Plant Cell and Environment
ER  -