scholarly journals Dissection of the molecular bases of genotype x environment interactions: a study of phenotypic plasticity of Saccharomyces cerevisiae in grape juices

BMC Genomics ◽  
2018 ◽  
Vol 19 (1) ◽  
Author(s):  
Emilien Peltier ◽  
Vikas Sharma ◽  
Maria Martí Raga ◽  
Miguel Roncoroni ◽  
Margaux Bernard ◽  
...  
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Phenotypic Plasticity ◽  
Genotype X Environment ◽  
Genotype X Environment Interactions ◽  
Grape Juices ◽  
Molecular Bases

Genotype x environment interactions in mixtures of herbage grasses

1974 ◽  
Vol 82 (2) ◽  
pp. 371-376 ◽  
Author(s):  
F. England
Keyword(s):  
Adequate Explanation ◽  
Environmental Index ◽  
Genotype X Environment ◽  
Genotype X Environment Interactions

SummaryThe technique of regression on environmental index is used to examine the behaviour of varieties in monoculture and mixture. It is shown that, sometimes, single regressions for each variety do not provide an adequate explanation of the interactions between varieties and environments.

scholarly journals Genetic basis of phenotypic plasticity and genotype x environment interaction in a multi-parental population

2020 ◽  
Author(s):  
Isidore Diouf ◽  
Laurent Derivot ◽  
Shai Koussevitzky ◽  
Yolande Carretero ◽  
Frédérique Bitton ◽  
...  
Keyword(s):  
Phenotypic Plasticity ◽  
Genetic Architecture ◽  
Genetic Basis ◽  
Linear Models ◽  
Global Climate ◽  
Functional Characterization ◽  
Genotype X Environment Interaction ◽  
Environment Interaction ◽  
Multiple Traits ◽  
Genotype X Environment

AbstractDeciphering the genetic basis of phenotypic plasticity and genotype x environment interaction (GxE) is of primary importance for plant breeding in the context of global climate change. Tomato is a widely cultivated crop that can grow in different geographical habitats and which evinces a great capacity of expressing phenotypic plasticity. We used a multi-parental advanced generation intercross (MAGIC) tomato population to explore GxE and plasticity for multiple traits measured in a multi-environment trial (MET) design comprising optimal cultural conditions and water deficit, salinity and heat stress over 12 environments. Substantial GxE was observed for all the traits measured. Different plasticity parameters were estimated through the Finlay-Wilkinson and factorial regression models and used together with the genotypic means for quantitative trait loci (QTL) mapping analyses. Mixed linear models were further used to investigate the presence of interactive QTLs (QEI). The results highlighted a complex genetic architecture of tomato plasticity and GxE. Candidate genes that might be involved in the occurrence of GxE were proposed, paving the way for functional characterization of stress response genes in tomato and breeding for climate-adapted crop.HighlightThe genetic architecture of tomato response to several abiotic stresses is deciphered. QTL for plasticity and QTL x Environment were identified in a highly recombinant MAGIC population.

scholarly journals Performance of Three Primocane-fruiting Red Raspberry Cultivars in Ontario and Québec

1993 ◽  
Vol 118 (3) ◽  
pp. 388-392 ◽  
Author(s):  
Jean-Pierre Privé ◽  
J.A. Sullivan ◽  
J.T.A. Proctor ◽  
O.B. Allen
Keyword(s):  
Maximum Yield ◽  
Rubus Idaeus ◽  
Yield Potential ◽  
Red Raspberry ◽  
Genotype X Environment ◽  
Genotype X Environment Interactions ◽  
Consistent Performance

The influence of genotype x environment interactions on the performance of `Autumn Bliss' `Heritage' and `Redwing' primocane-fruiting (PF) red raspberry (Rubus idaeus L.) cultivars was studied at six sites across Ontario and Quebec during 1989 and 1990. Cultivar × location × year interactions were found for most vegetative and reproductive components analyzed. `Autumn Bliss' had the most consistent performance of the three cultivars in all location/year combinations, while `Redwing' varied greatly between environments. `Heritage' was always the latest-bearing of the three cultivars and failed to achieve its maximum yield potential in many of the northern locations.

The influence of crossing strategy on the potential for breeding new crop varieties

1992 ◽  
Vol 32 (1) ◽  
pp. 65
Author(s):  
PS Brennan ◽  
DG Butler
Keyword(s):  
Genetic Variance ◽  
Breeding Population ◽  
Stability Parameters ◽  
Genotype X Environment ◽  
Commercial Importance ◽  
Crop Varieties ◽  
Genotype X Environment Interactions ◽  
Probability Of Success ◽  
Breeding History ◽  
New Crop

Crosses between commercially acceptable varieties and introductions are most likely to generate segregation at many loci of commercial importance. The probability of recovery, after selfing, of individuals in which most of the favourable alleles have been accumulated is very low. Reducing the number of favourable alleles heterozygous in the breeding population would increase the probability of success. The utility of a single backcross (BC1) to the parent with the greatest number of favourable alleles was examined as a method of fixing commercially desirable alleles. The means for stability parameters for yield for BC1F2-derived populations were similar to those for F2-derived populations. The genetic variance for yield in 2 of the 3 crosses studied was greater for the BC1F2- than the F2-derived populations, while the genotype x environment interactions appeared to be smaller for the BC1F2 populations. This suggested that BC1F2-derived populations may be more productive, in terms of varietal production, than F2-derived populations, particularly in species with a long breeding history and/or a large number of desirable characteristics.

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