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Decoupling of height growth and drought or pest resistance tradeoffs is revealed through multiple commongarden experiments of lodgepole pine
Liu, Yang; Erbilgin, Nadir; Cappa, Eduardo Pablo; Chen, Charles; Ratcliffe, Blaise; Wei, Xiaojing; Klutsch, Jennifer G.; Ullah, Aziz; Sebastian Azcona, Jaime; Thomas, Barb R.; El-Kassaby, Yousry A. (Oxford University Press, 2023-03)The environment could alter growth and resistance tradeoffs in plants by affecting the ratio of resource allocation to various competing traits. Yet, how and why functional tradeoffs change over time and space is poorly ... -
Efficient genomics-based ‘end-to-end’ selective tree breeding framework
El-Kassaby, Yousry A.; Cappa, Eduardo Pablo; Chen, Charles; Ratcliffe, Blaise; Porth, Ilga M. (Springer Nature, 2024-01-03)Since their initiation in the 1950s, worldwide selective tree breeding programs followed the recurrent selection scheme of repeated cycles of selection, breeding (mating), and testing phases and essentially remained unchanged ... -
Genomic selection in Canadian spruces
El-Kassaby, Yousry A.; Ratcliffe, Blaise; El-Dien, Omnia Gamal; Shuzhen, Sun; Chen, Charles; Cappa, Eduardo Pablo; Porth, Ilga M. (Springer, 2020-01-01)The genetic gain of spruce (Picea spp.) breeding programs is impeded by long recurrent selection cycles stemming from biological constraints such as late expression of traits, weak juvenile mature correlations, and late ... -
Genomic-based multiple-trait evaluation in Eucalyptus grandis using dominant DArT markers
Cappa, Eduardo Pablo; El-Kassaby, Yousry A.; Muñoz, Facundo; Garcia, Martin Nahuel; Villalba, Pamela Victoria; Klapste, Jaroslav; Marcucci Poltri, Susana Noemi (2018-06)We investigated the impact of combining the pedigree- and genomic-based relationship matrices in a multiple-trait individual-tree mixed model (a.k.a., multiple-trait combined approach) on the estimates of heritability and ... -
Improving accuracy of breeding values by incorporating genomic information in spatial - competition mixed models
Cappa, Eduardo Pablo; El-Kassaby, Yousry A.; Muñoz, Facundo; Garcia, Martin Nahuel; Villalba, Pamela Victoria; Klapste, Jaroslav; Marcucci Poltri, Susana Noemi (2017-10)Climate change and the increasing demand for sustainable energy resources require urgent strategies to increase the accuracy of selection in tree breeding (associated with higher gain). We investigated the combined pedigree ... -
Improving accuracy of breeding values by incorporating genomic information in spatial-competition mixed models [Conjunto de datos]
Cappa, Eduardo Pablo; El-Kassaby, Yousry A.; Muñoz, Facundo; Garcia, Martin Nahuel; Villalba, Pamela Victoria; Klapste, Jaroslav; Marcucci Poltri, Susana Noemi (2017-09)Supplementary information of a Eucalyptus grandis population, genomic and pedigree data including identity information of trees, family, and provenance of the paper entitled: Improving accuracy of breeding values by ... -
Improving lodgepole pine genomic evaluation using spatial correlation structure and SNP selection with single-step GBLUP
Cappa, Eduardo Pablo; Ratcliffe, Blaise; Chen, Charles; Thomas, Barb R.; Liu, Yang; Klutsch, Jennifer G.; Azcona, Jaime Sebastian; Benowicz, Andy; Sadoway, Shane; Erlilgin, Nadir; El-Kassaby, Yousry A. (Springer Nature, 2022-02-18)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 ... -
Integrating genomic information and productivity and climate-adaptability traits into a regional white spruce breeding program
Cappa, Eduardo Pablo; Klutsch, Jennifer G.; Sebastian-Azcona, Jaime; Ratcliffe, Blaise; Xiaojing, Wei; Da Ros, Letitia; Yang, Liu; Chen, Charles; Benowicz, Andy; Sadoway, Shane; Mansfield, Shawn D.; Erbilgin, Nadir; Thomas, Barb R.; El-Kassaby, Yousry A. (Plos ONE, 2022-03)Tree improvement programs often focus on improving productivity-related traits; however, under present climate change scenarios, climate change-related (adaptive) traits should also be incorporated into such programs. ... -
Multiple-trait analyses improved the accurary of genomic prediction and the power of genome-wide association of productivity and climate change-adaptive traits in lodgepole pine
Cappa, Eduardo Pablo; Chen, Charles; Klutsch, Jennifer G.; Azcona, Jaime Sebastián; Ratcliffe, Blaise; Wei, Xiaojing; Da Ros, Letitia; Ullah, Aziz; Liu, Yang; Benowicz, Andy; Sadoway, Shane; Mansfield, Shawn D.; Erbilgin, Nadir; Thomas, Barb R.; El-Kassaby, Yousry A. (BMC, 2022-07-23)Genomic prediction (GP) and genome-wide association (GWA) analyses are currently being employed to accelerate breeding cycles and to identify alleles or genomic regions of complex traits in forest trees species. Here, 1490 ... -
Multiple‑trait analyses improved the accuracy of genomic prediction and the power of genome‑wide association of productivity and climate change‑adaptive traits in lodgepole pine
Cappa, Eduardo Pablo; Chen, Charles; Klutsch, Jennifer G.; Sebastian-Azcona, Jaime; Ratcliffe, Blaise; Wei, Xiaojing; Da Ros, Letitia; Ullan, Aziz; Liu, Yang; Bernowicz, Andy; Sadoway, Shane; Mansfield, Shawn D.; Erbilgin, Nadir; Thomas, Barb R.; El-Kassaby, Yousry A. (BMC, 2022-07-23)Genomic prediction (GP) and genome-wide association (GWA) analyses are currently being employed to accelerate breeding cycles and to identify alleles or genomic regions of complex traits in forest trees species. Here, 1490 ... -
Quantitative genetics and genomics converge to accelerate forest tree breeding
Grattapaglia, Dario; Silva Junior, Orzenil B.; Resende, Rafael T.; Cappa, Eduardo Pablo; Müller, Bárbara S. F.; Tan, Biyue; Isik, Fikret; Ratcliffe, Blaise; El-Kassaby, Yousry A. (2018-11)Forest tree breeding has been successful at delivering genetically improved material for multiple traits based on recurrent cycles of selection, mating, and testing. However, long breeding cycles, late flowering, variable ... -
Single-step BLUP with varying genotyping effort in open-pollinated Picea glauca
Ratcliffe, Blaise; El-Dien, Omnia Gamal; Cappa, Eduardo Pablo; Porth, Ilga; Klapste, Jaroslav; El-Kassaby, Yousry A.; Chen, Charles (2017-03)Maximization of genetic gain in forest tree breeding programs is contingent on the accuracy of the predicted breeding values and precision of the estimated genetic parameters. We investigated the effect of the combined use ... -
Unweaving the population structure and genetic diversity of Canadian shrub willow
Murphy, Emily K.; Cappa, Eduardo Pablo; Soolanayakanahally, Raju Y.; El-Kassaby, Yousry A.; Parkin, Isobel A.P.; Schroeder, William R.; Mansfield, Shawn D. (Springer Nature, 2022-10-14)Perennial shrub willow are increasingly being promoted in short-rotation coppice systems as biomass feedstocks, for phytoremediation applications, and for the diverse ecosystem services that can accrue. This renewed interest ...