Selection and the rate of loss of genetic variation: Natural selection and genetic diversity

Reed, David

doi:10.1038/sj.hdy.6800990

Cited by 11 publications

(7 citation statements)

References 6 publications

(9 reference statements)

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“…The divergence between populations regarding phenotypic traits and neutral markers provides a means of comparing the relative importance of selection forces and genetic drift to the evolution of a trait (Kaeuffer et al, 2006;McKay and Latta, 2002;Reed, 2007). On the one hand, fitness-related traits are subject to selection, while molecular markers are assumed to be neutral, evolving through genetic drift (Kimura, 1983;McKay and Latta, 2002) or via a hitchhiking effect when in linkage disequilibrium with QTLs.…”

Section: Evolution Of Sex-related Traitmentioning

confidence: 99%

Reduction in the sex ability of worldwide clonal populations of Puccinia striiformis f.sp. tritici

Ali

Leconte

Walker

et al. 2010

Fungal Genetics and Biology

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Section: Evolution Of Sex-related Traitmentioning

confidence: 99%

Reduction in the sex ability of worldwide clonal populations of Puccinia striiformis f.sp. tritici

Ali

Leconte

Walker

et al. 2010

Fungal Genetics and Biology

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“…Extreme specializations, such as dependence on a single food source (e.g., koalas and eucalyptus, pandas and bamboo) renders a species more vulnerable to environmental disruption. As Dobzhansky ( 1937 , p. 127) noted, species that narrowly concentrate adaptations may be favored by natural selection in short time frames, but sacrifice “the flexibility that retention of a goodly amount of genetic variation affords against the (inevitable) change in position of the adaptive peak.” Conservation biologists have noted that, given species with similar phenotypes, higher variability of genotypes is correlated with higher survival rates when environments are disrupted (e.g., Reed, 2007 ; Vellend, 2006 ).…”

Section: In Phylogenymentioning

confidence: 99%

Faustian bargains: Short‐term and long‐term contingencies in phylogeny, ontogeny, and sociogeny

Stahlman

Catania

2022

J Exper Analysis Behavior

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Rachlin's interpretations of self‐control depend on the short‐term versus the long‐term consequences of behavior. Sometimes these effects support each other (typing an abstract produces a written product now and is later read by others). Sometimes they conflict (procrastination now is incompatible with finishing the abstract by deadline). We usually reserve the language of self‐control for human cases where long‐term consequences are chosen over short‐term ones. Rachlin made this distinction salient in ontogeny, but it also applies to selection in phylogeny (Darwinian evolution) and sociogeny (behavior passed from one organism to another). Our account examines relations between short‐term and long‐term consequences at each level of selection. For example, sexual selection has adaptive, short‐term mating consequences but may drive species to extreme specializations that jeopardize long‐term survival. In sociogeny, as in the Tragedy of the Commons, group members may get immediate economic benefits from exploiting resources but exhaust those resources over the long term. Whatever the level, when short‐term and long‐term consequences have opposing effects, adaptive behavior may depend on whether temporally extended contingencies exert more control than more immediate benefits.

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“…1). As the water level of the wetland has decreased since 2006, the cattail stand in stand (ST) 2 was recognized in 2006-2007and ST 3 was established during 2007. However, ST 1 had established prior to 2006.…”

Section: Study Sitementioning

confidence: 99%

“…Knowing the distribution of genetic variation among individuals and populations is important for evaluating the attributes of plant species, especially in rare species (Williamson and Werth 1999, Reed 2007, Hughes et al 2008. The distribution of genetic diversity is dependent on life history and other ecological factors (Loveless and Hamrick 1984).…”

Section: Introductionmentioning

confidence: 99%

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Assessment of genetic diversity of Typha angustifolia in the development of cattail stands

Min¹,

Kim²,

Kim³

2012

J. Ecol. Environ.

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Typha angustifolia has ecological characteristics of clonal growth similar to Phragmites australis. The plant spreads by clonal growth and seed dispersal. In this study, for the three stands which have different settlement age at the Baksilji wetland in Korea, genetic diversity was estimated by random amplification of polymorphic DNA analysis to evaluate the change in genetic diversity of T. angustifolia during stand development in the same population. Stand (ST) 1 was the oldest and ST 4 was the youngest. ST 5 was in a small ditch out of the Baksilji. Although the ST 1, ST 2, and ST 3 did not differ significantly in vegetational or physical environment, the genetic diversity estimated according to Nei's gene diversity (h) and the Shannon index (i) increased in the order of ST 1 < ST 2 < ST 3 contrary to formative age. The genetic diversity of ST 4 was much higher than that of the other three stands. ST 4 has similar abiotic environmental conditions with slight T. angustifolia dominance, and seems to be in the early establishment stage. ST 5 differed from the other stands in vegetational and soil environments, which can result in stressful cattail conditions. Even though the ST 5 stand was not younger than the ST 4 stand, ST 5 showed the highest genetic diversity. Our results indicate that after early settlement of the T. angustifolia population, genetic diversity within the species decreased over time and that the decreasing pattern of genetic diversity within T. angustifolia stands is not likely to occur under stressful conditions.

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Selection and the rate of loss of genetic variation: Natural selection and genetic diversity

Cited by 11 publications

References 6 publications

Reduction in the sex ability of worldwide clonal populations of Puccinia striiformis f.sp. tritici

Reduction in the sex ability of worldwide clonal populations of Puccinia striiformis f.sp. tritici

Faustian bargains: Short‐term and long‐term contingencies in phylogeny, ontogeny, and sociogeny

Assessment of genetic diversity of Typha angustifolia in the development of cattail stands

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