Long-term genomic selection for heterosis without dominance in multiplicative traits: case study of bunch production in oil palm

Cros, David; Denis, Marie; Bouvet, Jean‐Marc; Sanchez, Léopoldo

doi:10.1186/s12864-015-1866-9

Cited by 34 publications

(33 citation statements)

References 26 publications

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“…In oil palm, Cros et al [126] concluded that reciprocal recurrent genomic selection (RRGS) could increase annual gains by reducing the breeding cycle from 20 to six years compared to conventional RRS. Hence, RRGS seems to be a promising method to achieve long-term genetic gain under situations where traits are affected by heterosis, and when the breeding cycle is very long, as in the oil palm example.…”

Section: Recurrent Genomic Selection and Reciprocal Recurrent Genomicmentioning

confidence: 99%

“…Consequently, the inbreeding rate per generation can be reduced when DNA markers are used in the selection process. However, several simulation studies have shown that selection that is purely based on GEBVs can lead to a loss of genetic variance and hence an increase in the rate of inbreeding [75,126].…”

Section: Recurrent Genomic Selection and Reciprocal Recurrent Genomicmentioning

confidence: 99%

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Accelerating Genetic Gain in Sugarcane Breeding Using Genomic Selection

et al. 2020

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Sugarcane is a major industrial crop cultivated in tropical and subtropical regions of the world. It is the primary source of sugar worldwide, accounting for more than 70% of world sugar consumption. Additionally, sugarcane is emerging as a source of sustainable bioenergy. However, the increase in productivity from sugarcane has been small compared to other major crops, and the rate of genetic gains from current breeding programs tends to be plateauing. In this review, some of the main contributors for the relatively slow rates of genetic gain are discussed, including (i) breeding cycle length and (ii) low narrow-sense heritability for major commercial traits, possibly reflecting strong non-additive genetic effects involved in quantitative trait expression. A general overview of genomic selection (GS), a modern breeding tool that has been very successfully applied in animal and plant breeding, is given. This review discusses key elements of GS and its potential to significantly increase the rate of genetic gain in sugarcane, mainly by (i) reducing the breeding cycle length, (ii) increasing the prediction accuracy for clonal performance, and (iii) increasing the accuracy of breeding values for parent selection. GS approaches that can accurately capture non-additive genetic effects and potentially improve the accuracy of genomic estimated breeding values are particularly promising for the adoption of GS in sugarcane breeding. Finally, different strategies for the efficient incorporation of GS in a practical sugarcane breeding context are presented. These proposed strategies hold the potential to substantially increase the rate of genetic gain in future sugarcane breeding.

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Section: Recurrent Genomic Selection and Reciprocal Recurrent Genomicmentioning

confidence: 99%

Section: Recurrent Genomic Selection and Reciprocal Recurrent Genomicmentioning

confidence: 99%

Accelerating Genetic Gain in Sugarcane Breeding Using Genomic Selection

et al. 2020

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“…Cros et al (2015a) recently showed that Genomic Selection empirically appeared valuable for reciprocal recurrent selection in oil palm as it could account for family effects and Mendelian sampling terms, despite small populations and low marker density. Cros et al (2015b) concluded that RRGS (Recurrent Reciprocal Genomic Selection) could increase the annual selection response compared to RRS by decreasing the generation interval and by increasing the selection intensity. RRGS appeared suitable to achieve a long-term increase in the performance for a trait showing heterosis due to the multiplicative interaction between additive and negatively correlated components, such as oil palm bunch production.…”

Section: Increasing Breeding Efficiency Through Genomic Selection (Gs)mentioning

confidence: 99%

Breeding the oil palm (Elaeis guineensisJacq.) for climate change

Rival¹

2017

OCL

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-Breeding the oil palm (Elaeis guineensis Jacq.) for climate change requires multidisciplinary and collaborative research by nature: indeed -besides genetics and structural and functional genomics -almost all disciplines related to life sciences are involved. Research work also relies on the identification of genetic variation in the strategies of response to stress developed by the plant: this implies the exploration of resources provided by natural variation, germplasm collections, selected genitors from breeding programs together with material of interest collected from smallholders. The phenotyping of selected plant material under biotic/abiotic stress will involve new methods for high-throughput phenotyping and genomic approaches will be followed for the identification of genes underlying the variation of traits which will be used as selection targets. Also, improvements in understanding how climate change may influence chemical and physical processes in soils, how this may affect nutrient availability, and how the plant responds to changed availability of nutrients will also influence oil palm breeding programs. Molecular approaches and tools have great potential to optimize patterns of plant breeding, especially for perennial species. In recent years, there has been an exponential increase in molecular resources and methods aimed at identifying polymorphisms which control the traits of interest and exploring the mechanisms linking these polymorphisms to phenotypes. With genomic resources becoming increasingly available for the oil palm (sequencing, resequencing and chips development) the exploration of the genetic basis of complex traits such as oil yield or resistance to disease is now possible. Consequently the availability and sharing of such a large amount of data is currently reshaping most of oil palm breeding strategies.Keywords: adaptability / drought / genomics / phenotyping / plasticity / polymorphism / sex ratio Résumé -Sélection génétique du palmier à l'huile ( Elaeis guineensis Jacq. ) et changement climatique.La sélection génétique du palmier à huile pour faire face au changement climatique exige par nature une recherche pluridisciplinaire et collaborative : en effet, outre la génétique et la génomique structurelle et fonctionnelle, presque toutes les disciplines liées aux sciences de la vie sont impliquées. Ce travail de recherche intégratif nécessite également de pouvoir estimer la variation génétique dans les processus de réponse au stress développés par les plantes : il implique une exploration des ressources offertes par la variation génétique naturelle, les collections de germoplasme, les meilleurs géniteurs issus des programmes de sélection, ainsi que par le matériel d'intérêt recueilli auprès des petits exploitants. Le phénotypage du matériel végétal sélectionné sous stress biotique ou abiotique va impliquer de nouvelles méthodes de phénotypage à haut débit et des approches génomiques devront être suivies pour l'identification des gènes à la source de variations dans des car...

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“…Also, when whole-genome sequences are not available and SNP markers are present in a limited number, the breeders using GBS and HTS platforms can readily genotype their mapping population and can provide genomic selections for the targeted crops of interest [23,26,54]. Although it was first applied for animal breeding [55], recently genomic selection has been successfully applied to a number of plant species [56][57][58][59][60][61][62], including studies using GBS in the context of genomic selection [26]. Most importantly, the application of available genomics tools and a large number of high-throughput DNA markers and new-generation genotyping platforms have made the "breeding by design" [63] possible and have developed "virtual breeding" approaches [64] for efficient crop improvement.…”

Section: Genomics-assisted Selection or Genomic Selectionmentioning

confidence: 99%

Genomics Era for Plants and Crop Species – Advances Made and Needed Tasks Ahead

Abdurakhmonov¹

2016

Plant Genomics

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Historically, unintentional plant selection and subsequent crop domestication, coupled with the need and desire to get more food and feed products, have resulted in the continuous development of plant breeding and genetics efforts. The progress made toward this goal elucidated plant genome compositions and led to decoding the full DNA sequences of plant genomes controlling the entire plant life. Plant genomics aims to develop highthroughput genome-wide-scale technologies, tools, and methodologies to elucidate the basics of genetic traits/characteristics, genetic diversities, and by-product production; to understand the phenotypic development throughout plant ontogenesis with genetic by environmental interactions; to map important loci in the genome; and to accelerate crop improvement. Plant genomics research efforts have continuously increased in the past 30 years due to the availability of cost-effective, high-throughput DNA sequencing platforms that resulted in fully sequenced 100 plant genomes with broad implications for every aspect of plant biology research and application. These technological advances, however, also have generated many unexpected challenges and grand tasks ahead. In this introductory chapter, I aimed briefly to summarize some advances made in plant genomics studies in the past three decades, plant genome sequencing efforts, current state-of-the-art technological developments of genomics era, and some of current grand challenges and needed tasks ahead in the genomics and post-genomics era. I also highlighted the related book chapters contributed by different authors in this book.

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Long-term genomic selection for heterosis without dominance in multiplicative traits: case study of bunch production in oil palm

Cited by 34 publications

References 26 publications

Accelerating Genetic Gain in Sugarcane Breeding Using Genomic Selection

Accelerating Genetic Gain in Sugarcane Breeding Using Genomic Selection

Breeding the oil palm (Elaeis guineensisJacq.) for climate change

Genomics Era for Plants and Crop Species – Advances Made and Needed Tasks Ahead

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