Genotype-by-Environment Interaction

Donohue, Kathleen

doi:10.1016/b978-0-12-800049-6.00049-4

Cited by 3 publications

(4 citation statements)

References 47 publications

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“…The ability of genotypes to respond to various environments is referred to as phenotypic plasticity (Donohue, 2016). Yang and Hwa (2008) and Putra, Yudono, and Waluyo (2018) mention that the plant architecture, such as the tillering pattern, plant height, leaf shape and arrangement, and panicle shape are important for yield.…”

Section: Resultsmentioning

confidence: 99%

Genotype by environment analysis on multi‐canopy cropping system towards vertical harvest space in rice

2020

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The multi-canopy cropping system is considered a novel idea for increasing rice yield, derived from the concept of vertical agriculture. This method utilizes short and tall genotypes planted in the same hill. The tall plants form a canopy, and therefore the vertical harvest space can be used. The objective of the study was to determine the potential of breeding programs to develop varieties for multi-canopy cropping system in rice (Oryza sativa L.

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Section: Resultsmentioning

confidence: 99%

Genotype by environment analysis on multi‐canopy cropping system towards vertical harvest space in rice

2020

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Section: Discussionmentioning

confidence: 99%

“…The phenotypic variation can be illustrated as a reaction norm, a line or curve in a x-y plot with the x-axis representing the environment and y-axis the trait value (Donohue, 2016). They are used to understand the evolutionary and adaptive processes (Lind et al, 2015;Donelson et al, 2018), as well as for analyzing the effects derived from human activity (Forsman, 2015;Donohue, 2016). However, raising this matter by using the otolith shape is really novel, although not exempt from its own problems as, for example, the low variance explained by the PC1, the multiple representativity of points correlated between them, and the absence of ecological or morphometric traits clearly defined.…”

Section: Discussionmentioning

confidence: 99%

“…This adaptive phenotypic variation may occur at different spatial scales; and hence, the production of local phenotypes non-randomly distributed is expected (Lind et al, 2015). The phenotypic variation of one genotype across a spatial distribution with enough environmental variations can be illustrated by local mean phenotypes as a reaction norm (Donohue, 2016). However, studies have also demonstrated that the source of variation can stem from local differences at loci (genetic polymorphism) underlying ecological adaptation (Catanese et al, 2017), coined as ecotypes (Turesson, 1929;Turrill, 1946).…”

Section: Introductionmentioning

confidence: 99%

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Thinking of Fish Population Discrimination: Population Average Phenotype vs. Population Phenotypes

Vasconcelos

Jurado-Ruzafa²,

Otero-Ferrer³

et al. 2021

Front. Mar. Sci.

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The genetic polymorphism and phenotypic variation are key in ecology and evolution. The morphological variability of the contour of fish otoliths has been extensively used for the delimitation of stocks. These studies are conventionally based on average phenotype using elliptic Fourier analysis and lineal discriminant analysis as classifier. Considering new analytical options, such as the wavelet transform and non-parametric algorithms, we here analyzed the otolith shape of Trachurus picturatus (blue jack mackerel) from mainland Portugal, Madeira, and the Canaries. We explore the phenotypic variation throughout a latitudinal gradient, establish a hypothesis to explain this variability based on the reaction norms, and determine how the use of average phenotype and/or morphotypes influences in the delimitation of stocks. Four morphotypes were identified in all regions, with an increase of phenotypes in warmer waters. The findings demonstrated that stocks were clearly separated with classification rates over 90%. The use of morphotypes, revealed seasonal variations in their frequencies and per region. The presence of shared phenotypes in different proportions among fishing grounds may open new management approaches in migratory species. These results show the importance of the phenotypic diversity in fisheries management.

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Genetic Consequences of Biologically Altered Environments

D’Aguillo

Hazelwood

Quarles

et al. 2021

Journal of Heredity

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Evolvable traits of organisms can alter the environment those organisms experience. While it is well appreciated that those modified environments can influence natural selection to which organisms are exposed, they can also influence the expression of genetic variances and covariances of traits under selection. When genetic variance and covariance change in response to changes in the evolving, modified environment, rates and outcomes of evolution also change. Here we discuss the basic mechanisms whereby organisms modify their environments, review how those modified environments have been shown to alter genetic variance and covariance, and discuss potential evolutionary consequences of such dynamics. With these dynamics, responses to selection can be more rapid and sustained, leading to more extreme phenotypes, or they can be slower and truncated, leading to more conserved phenotypes. Patterns of correlated selection can also change, leading to greater or less evolutionary independence of traits, or even causing convergence or divergence of traits, even when selection on them is consistent across environments. Developing evolutionary models that incorporate changes in genetic variances and covariances when environments themselves evolve requires developing methods to predict how genetic parameters respond to environments—frequently multifactorial environments. It also requires a population-level analysis of how traits of collections of individuals modify environments for themselves and/or others in a population, possibly in spatially explicit ways. Despite the challenges of elucidating the mechanisms and nuances of these processes, even qualitative predictions of how environment-modifying traits alter evolutionary potential are likely to improve projections of evolutionary outcomes.

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Genotype-by-Environment Interaction

Cited by 3 publications

References 47 publications

Genotype by environment analysis on multi‐canopy cropping system towards vertical harvest space in rice

Genotype by environment analysis on multi‐canopy cropping system towards vertical harvest space in rice

Thinking of Fish Population Discrimination: Population Average Phenotype vs. Population Phenotypes

Genetic Consequences of Biologically Altered Environments

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