Accelerating forest tree breeding by integrating genomic selection and greenhouse phenotyping

The Plant Genome
Filipe C AlvesGustavo de Los Campos

Abstract

Breeding forest species can be a costly and slow process because of the extensive areas needed for field trials and the long periods (e.g., five years) that are required to measure economically and environmentally relevant phenotypes (e.g., adult plant biomass or plant height). Genomic selection (GS) and indirect selection using early phenotypes (e.g., phenotypes collected in greenhouse conditions) are two ways by which tree breeding can be accelerated. These approaches can both reduce the costs of field-testing and the time required to make selection decisions. Moreover, these approaches can be highly synergistic. Therefore, in this study, we used a data set comprising DNA genotypes and longitudinal measurements of growth collected from a population of Populus deltoides W. Bartram ex Marshall (eastern cottonwood) in the greenhouse and the field, to evaluate the potential impact of integrating large-scale greenhouse phenotyping with conventional GS. We found that the integration of greenhouse phenotyping and GS can deliver very early selection decisions that are moderately accurate. Therefore, we conclude that the adoption of these approaches, in conjunction with reproductive techniques that shorten the generation interval, can...Continue Reading

References

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Sep 13, 2017·Genetics·Hwasoon KimGustavo de Los Campos
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Feb 19, 2019·Plant Methods·Filipe Couto AlvesGustavo de Los Campos
May 20, 2020·Scientific Reports·Marco Lopez-CruzGustavo de Los Campos

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Citations

Jun 3, 2021·Genes·Andrés J Cortés, Felipe López-Hernández

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