The value of multivariate and genomic analysis to accelerate selection for low-heritability traits in field pea (Pisum sativum L.)

Felipe Castro Urrea

doi:10.26182/52x9-s322

The value of multivariate and genomic analysis to accelerate selection for low-heritability traits in field pea (Pisum sativum L.)

Felipe Castro Urrea

Research output: Thesis › Doctoral Thesis

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Abstract

The rate of annual yield genetic gain in major crops is in the order of 1%; however, this rate needs to double to meet the forecasted demand by 2050. Genetic gain in self-pollinating crops may be increased by shortening cycles through selecting and crossing non-inbred candidates, but this could compromise the accuracy of PBV. In this study, several breeding tools and methodologies, such as multivariate analyses, genomic selection, and optimised mating designs, were engaged to increase the accuracy of PBV and allow for selection on non-inbred candidates in an experimental population of field pea, thus shortening cycles and potentially increasing genetic gain.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Cowling, Wallace, Supervisor Siddique, Kadambot, Supervisor Li, Li, Supervisor, External person
Award date	11 Jun 2025
DOIs	https://doi.org/10.26182/52x9-s322
Publication status	Unpublished - 2025

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10.26182/52x9-s322

THESIS - DOCTOR OF PHILOSOPHY - CASTRO URREA Felipe Andres - 2025_
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Accuracy of Selection in Early Generations of Field Pea Breeding Increases by Exploiting the Information Contained in Correlated Traits
Castro-Urrea, F. A., Urricariet, M. P., Stefanova, K. T., Li, L., Moss, W. M., Guzzomi, A. L., Sass, O., Siddique, K. H. M. & Cowling, W. A., Mar 2023, In: Plants. 12, 5, 1141.
Research output: Contribution to journal › Article › peer-review

Open Access
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Cite this

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title = "The value of multivariate and genomic analysis to accelerate selection for low-heritability traits in field pea (Pisum sativum L.)",

abstract = "The rate of annual yield genetic gain in major crops is in the order of 1\%; however, this rate needs to double to meet the forecasted demand by 2050. Genetic gain in self-pollinating crops may be increased by shortening cycles through selecting and crossing non-inbred candidates, but this could compromise the accuracy of PBV. In this study, several breeding tools and methodologies, such as multivariate analyses, genomic selection, and optimised mating designs, were engaged to increase the accuracy of PBV and allow for selection on non-inbred candidates in an experimental population of field pea, thus shortening cycles and potentially increasing genetic gain.",

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school = "The University of Western Australia",

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AB - The rate of annual yield genetic gain in major crops is in the order of 1%; however, this rate needs to double to meet the forecasted demand by 2050. Genetic gain in self-pollinating crops may be increased by shortening cycles through selecting and crossing non-inbred candidates, but this could compromise the accuracy of PBV. In this study, several breeding tools and methodologies, such as multivariate analyses, genomic selection, and optimised mating designs, were engaged to increase the accuracy of PBV and allow for selection on non-inbred candidates in an experimental population of field pea, thus shortening cycles and potentially increasing genetic gain.

KW - Breeding

KW - Crop breeding

KW - LMM

KW - BLUP

KW - PBV accuracy

KW - GBLUP

KW - Genomic selection

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M3 - Doctoral Thesis

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The value of multivariate and genomic analysis to accelerate selection for low-heritability traits in field pea (Pisum sativum L.)

Abstract

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Research output

Accuracy of Selection in Early Generations of Field Pea Breeding Increases by Exploiting the Information Contained in Correlated Traits

Cite this