Dataset Information

Phenotypic variation in photosynthetic traits in wheat grown under field versus glasshouse conditions.

ABSTRACT: Recognition of the untapped potential of photosynthesis to improve crop yields has spurred research to identify targets for breeding. The CO2-fixing enzyme Rubisco is characterized by a number of inefficiencies, and frequently limits carbon assimilation at the top of the canopy, representing a clear target for wheat improvement. Two bread wheat lines with similar genetic backgrounds and contrasting in vivo maximum carboxylation activity of Rubisco per unit leaf nitrogen (Vc,max,25/Narea) determined using high-throughput phenotyping methods were selected for detailed study from a panel of 80 spring wheat lines. Detailed phenotyping of photosynthetic traits in the two lines using glasshouse-grown plants showed no difference in Vc,max,25/Narea determined directly via in vivo and in vitro methods. Detailed phenotyping of glasshouse-grown plants of the 80 wheat lines also showed no correlation between photosynthetic traits measured via high-throughput phenotyping of field-grown plants. Our findings suggest that the complex interplay between traits determining crop productivity and the dynamic environments experienced by field-grown plants needs to be considered in designing strategies for effective wheat crop yield improvement when breeding for particular environments.

SUBMITTER: Sales CRG

PROVIDER: S-EPMC9126738 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature

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Phenotypic variation in photosynthetic traits in wheat grown under field versus glasshouse conditions.

Sales Cristina R G CRG Molero Gemma G Evans John R JR Taylor Samuel H SH Joynson Ryan R Furbank Robert T RT Hall Anthony A Carmo-Silva Elizabete E

Journal of experimental botany 20220501 10

Recognition of the untapped potential of photosynthesis to improve crop yields has spurred research to identify targets for breeding. The CO2-fixing enzyme Rubisco is characterized by a number of inefficiencies, and frequently limits carbon assimilation at the top of the canopy, representing a clear target for wheat improvement. Two bread wheat lines with similar genetic backgrounds and contrasting in vivo maximum carboxylation activity of Rubisco per unit leaf nitrogen (Vc,max,25/Narea) determi ...[more]

PMID: 35271722

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Dataset Information

Phenotypic variation in photosynthetic traits in wheat grown under field versus glasshouse conditions.

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Phenotypic variation in photosynthetic traits in wheat grown under field versus glasshouse conditions.

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