Bread and hummus: trait connectance and correlation pleiades in grain crops

Sadras, Victor O

doi:10.1093/jxb/erae374

Journal of Experimental Botany

2024

DOI: 10.1093/jxb/erae374

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Bread and hummus: trait connectance and correlation pleiades in grain crops

Victor O Sadras

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2024

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Cited by 1 publication

References 41 publications

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Genetic modulation of yield and phenotypic plasticity of yield in winter wheat

Giordano,

Sadras,

Guttieri

et al. 2024

Preprint

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For winter wheat in the US Central Great Plains, phenotypic plasticity of yield is agronomically adaptive, i.e., genotypes with higher plasticity have higher yield in high yielding environments with no tradeoff in stressful, low yielding environments. Using data from variety trials conducted between 2000 and 2022 and cultivars released between 1967 and 2022, we explored time trends in phenotypic plasticity and heritability of yield. We hypothesize that i) if yield plasticity is agronomically adaptive, then newer cultivars will have higher yield plasticity; ii) heritability of yield is declining in the time series; and iii) genomic regions associated with yield depend on the environment and do not fully overlap with those associated with phenotypic plasticity of yield. Breeding for yield and agronomic adaptation increased phenotypic plasticity of yield at 0.5% year -1; broad sense heritability of yield decreased from 0.23 in 1993 to 0.15 in 2017. Genome-wide-association analysis shows genomic regions associated with yield varied between high yielding and stressful environments and were partially independent of those associated with yield plasticity. Newer cultivars have a higher frequency of alleles associated with yield and its plasticity. We discuss implications for breeding and agronomy aimed to improve wheat phenotypes.

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Genetic modulation of yield and phenotypic plasticity of yield in winter wheat

Giordano,

Sadras,

Guttieri

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

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Bread and hummus: trait connectance and correlation pleiades in grain crops

Cited by 1 publication

References 41 publications

Genetic modulation of yield and phenotypic plasticity of yield in winter wheat

Genetic modulation of yield and phenotypic plasticity of yield in winter wheat

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