Dissecting the trade-off of grain number and size in wheat

被引:20
|
作者
Xie, Quan [1 ]
Sparkes, Debbie L. [2 ]
机构
[1] Nanjing Agr Univ, Coll Agr, Nanjing 210095, Jiangsu, Peoples R China
[2] Univ Nottingham, Div Plant & Crop Sci, Sch Biosci, Sutton Bonington Campus, Loughborough LE12 5RD, Leics, England
关键词
AGP2; Principal component analysis; QTL; Trade-off; Yield; Yield component; GENOME-WIDE ASSOCIATION; QUANTITATIVE TRAIT LOCI; YIELD-RELATED TRAITS; BREAD WHEAT; GENETIC DISSECTION; AGRONOMIC TRAITS; WATER-STRESS; SEED WEIGHT; CARPEL SIZE; DURUM-WHEAT;
D O I
10.1007/s00425-021-03658-5
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Main conclusion Principal component and meta-QTL analyses identified genetic loci affecting the trade-off of wheat grain number and size, which could provide opportunities to optimize local breeding strategies for further yield improvement. Grain yield of wheat is complex, and its physiological and genetic bases remain largely unknown. Using the Forno/Oberkulmer recombinant inbred lines, this study validated the negative phenotypic relationships between thousand grain weight (TGW) and grain number components. This trade-off might be alleviated at the population level by early anthesis and at the shoot level by higher shoot biomass. Principal component (PC) analysis revealed three useful PCs, of which both PC1 and PC3 were positively associated with grain yield and grains m(-2) through increased spikes m(-2) (for PC1) or grains per spike (for PC3), while PC2 primarily reflected the trade-off of grain number and TGW. Quantitative trait locus (QTL) mapping detected eight and seven loci for PC1 and PC2, respectively, on chromosomes 1D, 2A, 3A, 3B, 4A, 4B, 5A and 7B, individually explaining 11.7-29.3% of phenotypic variations. Using the 1203 QTLs published previously, a meta-analysis was performed to reveal 12, 21, 37 and 54 genomic regions (MQTLs) affecting grains m(-2), spikes m(-2), grains per spike and TGW, respectively. Moreover, 67 MQTLs (96%) for grain number were coincided with the TGW MQTLs, with reverse phenotypic effects, suggesting intensive genetic trade-off between grain number and size. The AGP2 gene, which encodes ADP-glucose pyrophosphorylase determining TGW, was found by haplotype analysis in the Forno/Oberkulmer population to affect grain number oppositely, indicating this trade-off at the gene level. Appropriate combinations of the QTLs/genes for local breeding targets, such as higher grain number or larger grains, therefore, would be critical to achieve future yield gains.
引用
收藏
页数:16
相关论文
共 50 条
  • [1] Dissecting the trade-off of grain number and size in wheat
    Quan Xie
    Debbie L. Sparkes
    [J]. Planta, 2021, 254
  • [2] The leaf size/number trade-off in trees
    Kleiman, David
    Aarssen, Lonnie W.
    [J]. JOURNAL OF ECOLOGY, 2007, 95 (02) : 376 - 382
  • [3] TaGSNE, a WRKY transcription factor, overcomes the trade-off between grain size and grain number in common wheat and is associated with root development
    Khan, Nadia
    Zhang, Yanfei
    Wang, Jingyi
    Li, Yuying
    Chen, Xin
    Yang, Lili
    Zhang, Jie
    Li, Chaonan
    Li, Long
    Rehman, Shoaib Ur
    Reynolds, Matthew P.
    Zhang, Lichao
    Zhang, Xueyong
    Mao, Xinguo
    Jing, Ruilian
    [J]. JOURNAL OF EXPERIMENTAL BOTANY, 2022, 73 (19) : 6678 - 6696
  • [4] GNI-A1 mediates trade-off between grain number and grain weight in tetraploid wheat
    Golan, Guy
    Ayalon, Idan
    Perry, Aviad
    Zimran, Gil
    Ade-Ajayi, Toluwanimi
    Mosquna, Assaf
    Distelfeld, Assaf
    Peleg, Zvi
    [J]. THEORETICAL AND APPLIED GENETICS, 2019, 132 (08) : 2353 - 2365
  • [5] GNI-A1 mediates trade-off between grain number and grain weight in tetraploid wheat
    Guy Golan
    Idan Ayalon
    Aviad Perry
    Gil Zimran
    Toluwanimi Ade-Ajayi
    Assaf Mosquna
    Assaf Distelfeld
    Zvi Peleg
    [J]. Theoretical and Applied Genetics, 2019, 132 : 2353 - 2365
  • [6] The leaf size/number trade-off in herbaceous angiosperms
    Whitman, Thea
    Aarssen, Lonnie W.
    [J]. JOURNAL OF PLANT ECOLOGY, 2010, 3 (01) : 49 - 58
  • [7] Phylogenetic evidence for a flower size and number trade-off
    Sargent, Risa D.
    Goodwillie, Carol
    Kalisz, Susan
    Rees, Richard H.
    [J]. AMERICAN JOURNAL OF BOTANY, 2007, 94 (12) : 2059 - 2062
  • [8] The Effect of Growth Conditions on the Seed Size/Number Trade-Off
    Paul-Victor, Cloe
    Turnbull, Lindsay A.
    [J]. PLOS ONE, 2009, 4 (09):
  • [9] Reproductive allometry and the size-number trade-off for lizards
    Warne, Robin W.
    Charnov, Eric L.
    [J]. AMERICAN NATURALIST, 2008, 172 (03): : E80 - E98
  • [10] The trade-off between grain weight and grain number in wheat is explained by the overlapping of the key phases determining these major yield components
    Vicentin, Lucas
    Canales, Javier
    Calderini, Daniel F.
    [J]. FRONTIERS IN PLANT SCIENCE, 2024, 15