Genetic insights into elephantgrass persistence for bioenergy purpose

Persistence may be defined as high sustained yield over multi-harvest. Genetic insights about persistence are essential to ensure the success of breeding programs and any biomass-based project. This paper focuses on assessing the biomass yield persistence for bioenergy purpose of 100 elephantgrass c...

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Bibliographic Details
Published in:PloS one 2018-09, Vol.13 (9), p.e0203818-e0203818
Main Authors: Rocha, João Romero do Amaral Santos de Carvalho, Marçal, Tiago de Souza, Salvador, Felipe Vicentino, da Silva, Adriel Carlos, Machado, Juarez Campolina, Carneiro, Pedro Crescêncio Souza
Format: Article
Language:English
Subjects:
Agricultural production
Biological effects
Biology and Life Sciences
Biomass
Biomass energy
Breeding
Cloning
Crop yield
Crops
Engineering and Technology
Fertilizers
Gene expression
Gene pool
Genes
Genetic diversity
Genetic variability
Genomes
Genotypes
Nitrogen fixation
Pennisetum purpureum
Physical Sciences
Plant breeding
Raw materials
Regression analysis
Regression models
Renewable energy
Research and Analysis Methods
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Summary:Persistence may be defined as high sustained yield over multi-harvest. Genetic insights about persistence are essential to ensure the success of breeding programs and any biomass-based project. This paper focuses on assessing the biomass yield persistence for bioenergy purpose of 100 elephantgrass clones measured in six growth seasons in Brazil. To assess the clones' persistence, an index based on random regression models and genotype-ideotype distance was proposed. Results suggested the existence of wide genetic variability between elephantgrass clones, and that the yield trajectories along the harvests generate genetic insights into elephantgrass clones' persistence and G x E interaction. A gene pool that acts over the biomass yield (regardless of the harvest) was detected, as well as other gene pools, which show differences on genes expression (these genes are the major responsible for clones' persistence). The lower and higher clones' persistence was discussed based on genome dosage effect and natural biological nitrogen fixation ability applied to bioenergy industry. The huge potential of energy crops necessarily is associated with genetic insights into persistence, so just this way, breeding programs could breed a new cultivar that fulfills the bioenergy industries.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0203818