Selection and Segregation Distortion in a Sex-Differentiated Population

Weissing, Franz J.; Boven, Michiel van

doi:10.1006/tpbi.2001.1550

Cited by 19 publications

(11 citation statements)

References 33 publications

(75 reference statements)

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“…Alleles with different deleterious effects may exist at loci with segregation distortion, thus homozygotes for recessive lethal or deleterious alleles would suffer a decreased survival rate. Segregation distortion is a common phenomenon in aquaculture species and thought to be a potent evolutionary force (Weissing & Boven ). It is, however, unlikely that segregation distortion generally affects the value of these loci as genetic markers in half‐tetrad analysis using gynogenetic diploids in the species.…”

Section: Discussionmentioning

confidence: 99%

Microsatellite-centromere mapping in bighead carp (Aristichthys nobilis) using gynogenetic diploid families

et al. 2012

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Gene-centromere mapping using half-tetrad analysis is a powerful tool for understanding chromosomal behaviour and determining the position of centromeres in relation to genes or markers in fish. In this study, eight gynogenetic diploid families induced by inhibiting of the second meiotic division were genotyped at 66 microsatellite loci for microsatellite-centromere (M-C) mapping in bighead carp (Aristichthys nobilis). The absence of paternal alleles verified the success of gynogenetic development in all gynogenetic families. All loci were consistent with Mendelian segregation in control families. The estimated recombination frequency (y) ranged from 0.057 to 0.875 with an average of 0.477 ± 0.222. Seventeen loci (25.76%) showed high M-C recombination frequencies of over 0.667. M-C distances ranged from 2.85 to 43.75 cM under the assumption of complete interference. Thus, these loci are distributed from the centromeres to the telomeres of their respective chromosomes, while mainly in the intermediate region. Information on centromere mapping could serve as a starting point to consolidate the genetic linkage groups in bighead carp.

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Section: Discussionmentioning

confidence: 99%

Microsatellite-centromere mapping in bighead carp (Aristichthys nobilis) using gynogenetic diploid families

et al. 2012

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“…Weissing and van Boven [6],Úbeda and Haig [7] and references therein).Úbeda and Haig [7] were the first population geneticists to formulate a one-locus sexspecific segregation distortion model by including a genomic imprinting concept.…”

Section: Introductionmentioning

confidence: 99%

Random and non-random mating populations: Evolutionary dynamics in meiotic drive

Sarkar

2016

Mathematical Biosciences

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Game theoretic tools are utilized to analyze a one-locus continuous selection model of sex-specific meiotic drive by considering nonequivalence of the viabilities of reciprocal heterozygotes that might be noticed at an imprinted locus.The model draws attention to the role of viability selections of different types to examine the stable nature of polymorphic equilibrium. A bridge between population genetics and evolutionary game theory has been built up by applying the concept of the Fundamental Theorem of Natural Selection. In addition to pointing out the influences of male and female segregation ratios on selection, configuration structure reveals some noted results, e.g., Hardy-Weinberg frequencies hold in replicator dynamics, occurrence of faster evolution at the maximized variance fitness, existence of mixed Evolutionarily Stable Strategy (ESS) in asymmetric games, the tending evolution to follow not only a 1 : 1 sex ratio but also a 1 : 1 different alleles ratio at particular gene locus. Through construction of replicator dynamics in the group selection framework, our selection model introduces a redefining bases of game theory to incorporate non-random mating where a mating parameter associated with population structure is dependent on the social structure. Also, the model exposes the fact that the number of polymorphic equilibria will depend on the algebraic expression of population structure.

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“…If this is indeed the case, such models will also display a polymorphic equilibrium state and the flat fitness dynamics will spiral away from it to eventually reach the boundary of the state-space (as a simplex) in infinite time. In (Weissing and van Boven 2001), a population without sex-differentiation driven simultaneously by viability selection and segregation distortion is considered in Section 2, together with the adjunction of the effect of sex in Section 3. In this note, we shall study separately systems driven first by selection (in the absence of segregation distortion when segregation is Mendelian W k,l = W l,k =Const/2) and then by segregation distortion (in the absence of selection) and we shall not consider the effect of sex.…”

Section: Introductionmentioning

confidence: 99%

On polymorphism for discrete evolutionary dynamics driven either by selection or segregation distortion

Huillet

Martı́nez²,

Möhle

2016

Comp. Appl. Math.

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We revisit some problems arising in the context of multiallelic discrete-time and deterministic evolutionary dynamics driven first by fitness differences and then by segregation distortion. In the model with fitness, we describe classes of fitness matrices exhibiting polymorphism. In the segregation case, still in search for conditions of polymorphism, we focus on a class of skew-symmetric matrices with a unique strictly positive kernel vector. Our main results reduce the study of these cases to the analysis of stochastic matrices.

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Selection and Segregation Distortion in a Sex-Differentiated Population

Cited by 19 publications

References 33 publications

Microsatellite-centromere mapping in bighead carp (Aristichthys nobilis) using gynogenetic diploid families

Microsatellite-centromere mapping in bighead carp (Aristichthys nobilis) using gynogenetic diploid families

Random and non-random mating populations: Evolutionary dynamics in meiotic drive

On polymorphism for discrete evolutionary dynamics driven either by selection or segregation distortion

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