Improving lodgepole pine genomic evaluation using spatial correlation structure and SNP selection with single-step GBLUP.


Journal

Heredity
ISSN: 1365-2540
Titre abrégé: Heredity (Edinb)
Pays: England
ID NLM: 0373007

Informations de publication

Date de publication:
04 2022
Historique:
received: 17 05 2021
accepted: 28 01 2022
revised: 27 01 2022
pubmed: 20 2 2022
medline: 9 4 2022
entrez: 19 2 2022
Statut: ppublish

Résumé

Modeling environmental spatial heterogeneity can improve the efficiency of forest tree genomic evaluation. Furthermore, genotyping costs can be lowered by reducing the number of markers needed. We investigated the impact on variance components, breeding value accuracy, and bias of two phenotypic data adjustments (experimental design and autoregressive spatial models), and a relationship matrix calculated from a subset of markers selected for their ability to infer ancestry. Using a multiple-trait multiple-site single-step Genomic Best Linear Unbiased Prediction (ssGBLUP) approach, four scenarios (2 phenotype adjustments × 2 marker sets) were applied to diameter at breast height (DBH), height (HT), and resistance to western gall rust (WGR) in four open-pollinated progeny trials of lodgepole pine, with 1490 (out of 11,188) trees genotyped with 25,099 SNPs. As a control, we fitted the conventional ABLUP model using pedigree information. The highest heritability estimates were achieved for the ABLUP followed closely by the ssGBLUP with the full marker set and using the spatial phenotype adjustments. The highest predictive ability was obtained by using a reduced marker subset (8000 SNPs) when either the spatial (DBH: 0.429, and WGR: 0.513) or design (HT: 0.467) phenotype corrections were used. No significant difference was detected in prediction bias among the six fitted models, and all values were close to 1 (0.918-1.014). Results demonstrated that selecting informative markers, such as those capturing ancestry, can improve the predictive ability. The use of spatial correlation structure increased traits' heritability and reduced prediction bias, while increases in predictive ability were trait-dependent.

Identifiants

pubmed: 35181761
doi: 10.1038/s41437-022-00508-2
pii: 10.1038/s41437-022-00508-2
pmc: PMC8986842
doi:

Types de publication

Journal Article Research Support, U.S. Gov't, Non-P.H.S. Research Support, Non-U.S. Gov't

Langues

eng

Sous-ensembles de citation

IM

Pagination

209-224

Informations de copyright

© 2022. The Author(s), under exclusive licence to The Genetics Society.

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Auteurs

Eduardo P Cappa (EP)

Instituto Nacional de Tecnología Agropecuaria (INTA), Instituto de Recursos Biológicos, Centro de Investigación en Recursos Naturales, De Los Reseros y Dr. Nicolás Repetto s/n, 1686, Hurlingham, Buenos Aires, Argentina. cappa.eduardo@inta.gob.ar.
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina. cappa.eduardo@inta.gob.ar.

Blaise Ratcliffe (B)

Department of Forest and Conservation Sciences, Faculty of Forestry, The University of British Columbia, Vancouver, BC, V6T 1Z4, Canada.

Charles Chen (C)

Department of Biochemistry and Molecular Biology, Oklahoma State University, Stillwater, OK, 74078, USA.

Barb R Thomas (BR)

Department of Renewable Resources, University of Alberta, 442 Earth Sciences Bldg., Edmonton, AB, T6G 2E3, Canada.

Yang Liu (Y)

Department of Forest and Conservation Sciences, Faculty of Forestry, The University of British Columbia, Vancouver, BC, V6T 1Z4, Canada.

Jennifer Klutsch (J)

Department of Renewable Resources, University of Alberta, 442 Earth Sciences Bldg., Edmonton, AB, T6G 2E3, Canada.
Department of Forestry, New Mexico Highlands University, Las Vegas, NM, 87701, USA.

Xiaojing Wei (X)

Department of Renewable Resources, University of Alberta, 442 Earth Sciences Bldg., Edmonton, AB, T6G 2E3, Canada.

Jaime Sebastian Azcona (JS)

Department of Renewable Resources, University of Alberta, 442 Earth Sciences Bldg., Edmonton, AB, T6G 2E3, Canada.

Andy Benowicz (A)

Forest Stewardship and Trade Branch, Alberta Agriculture and Forestry, Edmonton, AB, T6H 5T6, Canada.

Shane Sadoway (S)

Blue Ridge Lumber Inc., West Fraser Mills Ltd, Unnamed Road, Blue Ridge, AB, T0E 0B0, Canada.

Nadir Erbilgin (N)

Department of Renewable Resources, University of Alberta, 442 Earth Sciences Bldg., Edmonton, AB, T6G 2E3, Canada.

Yousry A El-Kassaby (YA)

Department of Forest and Conservation Sciences, Faculty of Forestry, The University of British Columbia, Vancouver, BC, V6T 1Z4, Canada.

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