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Breeding has selected for architectural and photosynthetic traits in lentils.

ABSTRACT: Genetic progress in seed yield in lentils (Lens culinaris Medik) has increased by 1.1% per year in Australia over the past 27 years. Knowing which plant traits have changed through breeding during this time can give important insights as to how lentil yield has increased. This study aims to identify morphological and physiological traits that were directly or indirectly selected between 1993 and 2020 in the Australian lentil breeding program using 2 years of experimental data. Major changes occurred in plant architecture during this period. Divergent selection has seen the release of varieties that have sprawling to very upright types of canopies. Despite this genetic diversity in recently released varieties, there is an overall tendency of recently released varieties having increased plant height and leaf size with reduced number of branches. Increased light interception was positively correlated with year of release (YOR) and yield, and likely results from indirect selection of yield and taller plant types. There is an indication that recently released varieties have lower CO₂ assimilation rate, stomatal conductance and canopy temperature depression (CTD) at high ambient temperatures (~30°C). Understanding lentil physiology will assist in identifying traits to increase yield in a changing climate with extreme weather events.

SUBMITTER: Silva-Perez V

PROVIDER: S-EPMC9453451 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature

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Breeding has selected for architectural and photosynthetic traits in lentils.

Silva-Perez Viridiana V Shunmugam Arun S K ASK Rao Shiwangni S Cossani C Mariano CM Tefera Abeya Temesgen AT Fitzgerald Glenn J GJ Armstrong Roger R Rosewarne Garry M GM

Frontiers in plant science 20220825

Genetic progress in seed yield in lentils (<i>Lens culinaris</i> Medik) has increased by 1.1% per year in Australia over the past 27 years. Knowing which plant traits have changed through breeding during this time can give important insights as to how lentil yield has increased. This study aims to identify morphological and physiological traits that were directly or indirectly selected between 1993 and 2020 in the Australian lentil breeding program using 2 years of experimental data. Major chang ...[more]

PMID: 36092438

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Dataset Information

Breeding has selected for architectural and photosynthetic traits in lentils.

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Breeding has selected for architectural and photosynthetic traits in lentils.

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