On the biochemical systematics of the bovini

Hartl, Günther B.; Göltenboth, R; Grilltsch, Martin; Willing, R.

doi:10.1016/0305-1978(88)90065-8

Cited by 34 publications

(24 citation statements)

References 21 publications

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“…In contrast, according to different morphological characteristics of Bovinae species, Bohlken (1958Bohlken ( , 1961 first grouped the yak with cattle, followed by gaur (Bos gaurus) and banteng (Bos javanicus) in one clade, which then clustered with the American bison and European bison (Bison bonasus). The same conclusion was made by Hartl et al (1988) and Ritz et al (2000) from biochemical genetics and microsatellite loci, respectively.…”

supporting

confidence: 51%

Phylotaxonomic position of Tianzhu white yak (Poephagus grunniens) based on nucleotide sequences of multiple subunits of cytochromecoxidase

Bai

2014

Journal of Applied Animal Research

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To estimate the phylotaxonomic position of Tianzhu white yak (Poephagus grunniens), multiple subunit genes of cytochrome c oxidase (cox) were sequenced: 1545 bp of cox1 (JF946751), 684 bp of cox2 (JN008944) and 781 bp of cox3 (JF946752). Sequence divergences of cox genes between yaks and cattle/zebus (5.7% in cox1, 7.7% in cox2 and 6.45% in cox3) were higher than those between yaks and American bisons (2.4% in cox1, 3.0% in cox2 and 2.1% in cox3). Molecular phylogenetic analysis with these genes also found that yaks and American bisons firstly clustered in one clade, indicating there was higher genetic comparability than that of cattle/zebus. The findings sustained the idea that in the choice of nomenclature yaks belong to the subgenus of Poephagus. According to the nucleotide substitution rate of cox genes among species of Bovinae, the speculated divergence time of yaks from cattle/zebus, American bisons, European bisons, Asian buffaloes/African buffaloes was 1.05-1.50 million years ago (MYA), 2.85-3.89 MYA, 2.90-3.70 MYA, 6.85-7.50 MYA, respectively. The sequential evolution of Bovinae members could be predicted that buffaloes were first to be domesticated during the end of Miocene and the early of Pliocene. In the end of Pliocene, the Bovinae genera were evolved to Bos, Bison and Poephagus. Poephagus was the latest evolved genera among the species of Bovinae.

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supporting

confidence: 51%

Phylotaxonomic position of Tianzhu white yak (Poephagus grunniens) based on nucleotide sequences of multiple subunits of cytochromecoxidase

Bai

2014

Journal of Applied Animal Research

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“…First, this mode of analysis can be applied only when a plausible phylogeny of at least some of the taxa Carroll 1989;Catzeflis et al 1989Catzeflis et al , 1992Eisenberg 1981;Forstén 1992;Georgiadis et al 1990;Geraads 1992;Hafner 1984;Hartl et al 1988Hartl et al , 1990 is available from other lines of evidence. Second, if the true phylogeny differs markedly from the estimated phylogeny used in the analysis, the results could be meaningless.…”

Section: Discussionmentioning

confidence: 99%

Estimating the Transition/Transversion Ratio from Independent Pairwise Comparisons with an Assumed Phylogeny

Purvis

Bromham

1997

J Mol Evol

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A method is presented for estimating the transition/transversion ratio (TI/TV), based on phylogenetically independent comparisons. TI/TV is a parameter of some models used in phylogeny estimation intended to reflect the fact that nucleotide substitutions are not all equally likely. Previous attempts to estimate TI/TV have commonly faced three problems: (1) few taxa; (2) nonindependence among pairwise comparisons; and (3) multiple hits make the apparent TI/TV between two sequences decrease over time since their divergence, giving a misleading impression of relative substitution probabilities. We have made use of the time dependency, modeling how the observed TI/TV changes over time and extrapolating to estimate the "instantaneous" TI/TV-the relevant parameter for phylogenetic inference. To illustrate our method, TI/TV was estimated for two mammalian mitochondrial genes. For 26 pairs of cytochrome b sequences, the estimate of TI/TV was 5.5; 16 pairs of 12s rRNA yielded an estimate of 9.5. These estimates are higher than those given by the maximum likelihood method and than those obtained by averaging all possible pairwise comparisons (with or without a two-parameter correction for multiple substitutions). We discuss strengths, weaknesses, and further uses of our method.

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“…Electrophoretic and staining procedures were performed according to routine methods (Hartl and H6ger, 1986;Hartl et al, 1988a Hartl, 1986bHartl, , 1987Hartl, 1986, 1987;Hartl and Csaikl, 1987;Hartl and Reimoser, 1988;Hartl et al, 1988a; Leitner and Hartl, 1988;Hartl et al, 1990a). The number of genetic loci determining the various isoenzyme systems was assessed by comparison with data on deer species found in the literature (Table IV) and results from studies on the biochemical systematics of Artiodactyla and the homology of isoenzyme loci among mammals (see Hartl et al, 1988bHartl et al, , 1990b Nei (1975). To examine the absolute genetic divergence among populations, several distance measures as compiled by Rogers (1986) were applied.…”

Section: Methodsmentioning

confidence: 99%

Genetic variability and differentiation in red deer (Cervus elaphus L) of Central Europe

Hartl¹,

Willing²,

Lang³

et al. 1990

Genet. Sel. Evol.

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On the biochemical systematics of the bovini

Cited by 34 publications

References 21 publications

Phylotaxonomic position of Tianzhu white yak (Poephagus grunniens) based on nucleotide sequences of multiple subunits of cytochromecoxidase

Phylotaxonomic position of Tianzhu white yak (Poephagus grunniens) based on nucleotide sequences of multiple subunits of cytochromecoxidase

Estimating the Transition/Transversion Ratio from Independent Pairwise Comparisons with an Assumed Phylogeny

Genetic variability and differentiation in red deer (Cervus elaphus L) of Central Europe

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