CytochromebPhylogeny of the Family Bovidae: Resolution within the Alcelaphini, Antilopini, Neotragini, and Tragelaphini

Matthee, Conrad A.; Robinson, Terence J.

doi:10.1006/mpev.1998.0573

Cited by 85 publications

(67 citation statements)

References 49 publications

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“…Finally, this work suggested the existence of two major subfamilial clades in Bovidae (Bovinae and Caprinae/Alcelaphinae/Hippotraginae clades), consistent with other molecular investigations based on ribosomal (Gatesy et al 1997) or cyt b (Hassanin & Douzery 1999a,b;Matthee & Robinson 1999) mitochondrial sequences.…”

Section: Discussionsupporting

confidence: 90%

Phylogenetic relationships and the primitive X chromosome inferred from chromosomal and satellite DNA analysis in Bovidae

2005

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The early phylogeny of the 137 species in the Bovidae family is difficult to resolve; knowledge of the evolution and relationships of the tribes would facilitate comparative mapping, understanding chromosomal evolution patterns and perhaps assist breeding and domestication strategies. We found that the study of the presence and organization of two repetitive DNA satellite sequences (the clone pOaKB9 from sheep, a member of the 1.714 satellite I family and the pBtKB5, a 1.715 satellite I clone from cattle) on the X and autosomal chromosomes by in situ hybridization to chromosomes from 15 species of seven tribes, was informative. The results support a consistent phylogeny, suggesting that the primitive form of the X chromosome is acrocentric, and has satellite I sequences at its centromere. Because of the distribution of the ancient satellite I sequence, the X chromosome from the extant Tragelaphini (e.g. oryx), rather than Caprini (sheep), line is most primitive. The Bovini (cow) and Tragelaphini tribes lack the 1.714 satellite present in the other tribes, and this satellite is evolutionarily younger than the 1.715 sequence, with absence of the 1.714 sequence being a marker for the Bovini and Tragelaphini tribes (the Bovinae subfamily). In the other tribes, three (Reduncini, Hippotragini and Aepycerotini) have both 1.714 and 1.715 satellite sequences present on both autosomes and the X chromosome. We suggest a parallel event in two lineages, leading to X chromosomes with the loss of 1.715 satellite from the Bovini, and the loss of both 1.714 and 1.715 satellites in a monophyletic Caprini and Alcelaphini lineage. The presence and X chromosome distribution of these satellite sequences allow the seven tribes to be distributed to four groups, which are consistent with current diversity estimates, and support one model to resolve points of separation of the tribes.

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Section: Discussionsupporting

confidence: 90%

Phylogenetic relationships and the primitive X chromosome inferred from chromosomal and satellite DNA analysis in Bovidae

2005

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“…The phylogenetic tree for fleas was based on a detailed morphological taxonomy (see details in Krasnov et al 2004 a). The phylogenetic tree for mammals was based on various sources (see details in Morand and Poulin, 1998 ;Matthee and Robinson, 1999 ;Krasnov et al 2004 b, c ;Flynn et al 2005). The initial branch length for both trees was set to 1 .…”

Section: A T E R I a L S A N D M E T H O D Smentioning

confidence: 99%

Resource predictability and host specificity in fleas: the effect of host body mass

et al. 2006

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Ecological specialization is hypothesized to result from the exploitation of predictable resource bases. For parasitic organisms, one prediction is that parasites of large-bodied host species, which tend to be long-lived, should specialize on these hosts, whereas parasites of small host species, which represent more ephemeral and less predictable resources, should become generalists. We tested this prediction by quantifying the association between the level of host specificity of fleas and the mean body mass of their mammalian hosts, using published data from 2 large, distinct geographical regions (South Africa and northern North America). In general, we found supporting evidence that flea host specificity, measured either as the number of host species exploited or their taxonomic distinctness, became more pronounced with increasing host body mass. There were, however, some discrepancies among the results depending on the different measures of host specificity, the geographical region studied, or whether we used the raw values or phylogenetically independent contrasts. These are discussed with respect to other forces acting on the evolution of host specificity in parasites, as well as in the context of the regions' contrasting evolutionary histories. Overall, though, our findings indicate that the exploitation of large-bodied, and therefore long-lived, host species has promoted specialization in fleas, most likely because these hosts represent predictable resources.

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“…Because transversion distances are thought to be roughly linear with time (e.g. Miyamoto & Boyle 1989;Matthee & Robinson 1999), they can be employed as a general index to relative times of divergence. Transversion di¡erences from the thrush (Passerida) outgroups to the corvine ingroups range from 5.8 to 7.9%; from meliphagoid taxa to the corvoids, 5.6 to 7.9%; from Ptilonorhynchus to other corvoids, 6.3 to 7.5%; and from cnemophilines to other corvoids (except Ptilonorhynchus), 5.6 to 6.9%.…”

Section: (C) Australasian Avifaunal Historymentioning

confidence: 99%

What is not a bird of paradise? Molecular and morphological evidence placesMacgregoriain the Meliphagidae and the Cnemophilinae near the base of the corvoid tree

Cracraft

Feinstein

2000

Proc. R. Soc. Lond. B

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The cnemophiline`birds of paradise' (Cnemophilinae) and Macgregor's`bird of paradise' (Macgregoria) have traditionally been included in the Paradisaeidae although their relationships within the group have been enigmatic and subject to repeated discussion in the literature. Here we use sequences from two mitochondrial genes, cytochrome b and cytochrome oxidase I, along with a suite of morphological characters, to investigate their relationships to paradisaeids and other members of the passerine Parvorder Corvida. The combined data strongly support the removal of both groups from the birds of paradise: the cnemophilines are basal members of the Corvoidea and Macgregoria is a member of the Meliphagoidea and embedded in the honeyeaters (Meliphagidae) close to the genus Melipotes. The amount of sequence divergence among basal passeriforms and members of the Corvida, as well as available fossil evidence for Australian corvidans, suggest that cnemophilines represent an ancient lineage within the corvoid radiation. Because cnemophilines and Macgregoria have been placed at the base of the paradisaeid tree, hypotheses of morphological, behavioural and ecological character-state transformations within the family will require reanalysis.

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CytochromebPhylogeny of the Family Bovidae: Resolution within the Alcelaphini, Antilopini, Neotragini, and Tragelaphini

Cited by 85 publications

References 49 publications

Phylogenetic relationships and the primitive X chromosome inferred from chromosomal and satellite DNA analysis in Bovidae

Phylogenetic relationships and the primitive X chromosome inferred from chromosomal and satellite DNA analysis in Bovidae

Resource predictability and host specificity in fleas: the effect of host body mass

What is not a bird of paradise? Molecular and morphological evidence placesMacgregoriain the Meliphagidae and the Cnemophilinae near the base of the corvoid tree

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