Distance between Populations on the Basis of Attribute Data

Balakrishnan, Vijay Shankar; Sanghvi, L. D.

doi:10.2307/2528876

Cited by 168 publications

(66 citation statements)

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“…Distance analysis based on the discrete crown characters There are many different procedures available for most analytic mathematical models. In this section, B-square distance (BALAKRISHNAN and SANGHVI, 1968) was applied on the non-metric crown traits for comparing between-population differences. The traits recorded and their frequency distributions in Sakhalin Ainu, Chinese and Tokunoshima were listed in Table 3.…”

Section: Resultsmentioning

confidence: 99%

Studies on the affinities of Sakhalin Ainu based on dental characters: The basic populations in East Asia, III.

Hanihara

1990

Journal of Anthropological Society of Nippon

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Section: Resultsmentioning

confidence: 99%

Studies on the affinities of Sakhalin Ainu based on dental characters: The basic populations in East Asia, III.

Hanihara

1990

Journal of Anthropological Society of Nippon

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“…This strategy was extended to other distances by Reynolds [57], Balakrishnan and Sangvhi [1] and Barker [2]. Given that…”

Section: Euclidean Distancesmentioning

confidence: 99%

Measuring genetic distances between breeds: use of some distances in various short term evolution models

2002

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-Many works demonstrate the benefits of using highly polymorphic markers such as microsatellites in order to measure the genetic diversity between closely related breeds. But it is sometimes difficult to decide which genetic distance should be used. In this paper we review the behaviour of the main distances encountered in the literature in various divergence models. In the first part, we consider that breeds are populations in which the assumption of equilibrium between drift and mutation is verified. In this case some interesting distances can be expressed as a function of divergence time, t, and therefore can be used to construct phylogenies. Distances based on allele size distribution (such as (δµ) 2 and derived distances), taking a mutation model of microsatellites, the Stepwise Mutation Model, specifically into account, exhibit large variance and therefore should not be used to accurately infer phylogeny of closely related breeds. In the last section, we will consider that breeds are small populations and that the divergence times between them are too small to consider that the observed diversity is due to mutations: divergence is mainly due to genetic drift. Expectation and variance of distances were calculated as a function of the Wright-Malécot inbreeding coefficient, F. Computer simulations performed under this divergence model show that the Reynolds distance [57] is the best method for very closely related breeds. microsatellites / breeds / divergence / mutation / genetic drift

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“…Cavalli-Sforza and Edwards, 1967;Balakrishnan and Sanghvi, 1968;Hedrick, 1971;Rogers, 1972) have proposed direct measures for genetic distance. In particular Nei (1971Nei ( , 1972Nei ( , 1975) has developed a statistical method which permits an approximate evaluation of the codon differences electrophoretically detectable by means of allelic frequencies, using three different measures of genetic distance: minimum, standard and maximum.…”

Section: Genetic Distance Arid Related Estiniatesmentioning

confidence: 99%

Electrophoretic studies of gene-enzyme systems: Microevolutionary processes and phylogenetic inference

Bullini

Sbordoni²

1980

Bolletino di zoologia

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Some main contributions to evolutionary population biology and systematics from electrophe retic studies of gene-enzyme systems are reviewed. The following topics are in particular discussed:statistical methods for estimating genetic divergence; variability of enzyme loci and their contribution to genetic distance; patterns of genetic differentiation during the speciation process and the levels of divergence between taxa of different rank; identification of sibling species and detection of reproductive isolating mechanisms; phylogenetic inference from electrophoretic data and the construction of dendrograms; congruence between electrophoretic and morphological data in taxonomy. I t is concluded that electrophoresis is a powerful tool in the study of microevolutionary processes and siinificantly contributes, at the lower taxa level,. to a systematic arrangement more consistent with phylogenesis.

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Distance between Populations on the Basis of Attribute Data

Cited by 168 publications

References 1 publication

Studies on the affinities of Sakhalin Ainu based on dental characters: The basic populations in East Asia, III.

Studies on the affinities of Sakhalin Ainu based on dental characters: The basic populations in East Asia, III.

Measuring genetic distances between breeds: use of some distances in various short term evolution models

Electrophoretic studies of gene-enzyme systems: Microevolutionary processes and phylogenetic inference

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