INTERSPECIFIC HYBRIDIZATION IN<i>BUFO WOODHOUSEI</i>AND<i>BUFO VALLICEPS</i>

Thornton, W. A.

doi:10.1111/j.1558-5646.1955.tb01555.x

Cited by 26 publications

(6 citation statements)

References 5 publications

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“…First, the progeny of heterospecific matings often show a strong bias in the direction of the cross, inferred from preponderance of one type of mtDNA in hybrids (Patton and Smith 1993; Arnold et al 1996). This asymmetry may be due to prezygotic (Szymura et al 1985; Lamb and Avise 1986; Baker et al 1989; Konkle and Philipp 1992; Wirtz 1999), or postzygotic (Thornton 1955; Wu and Beckenbach 1983; Rakocinski 1984; Hillis 1988; Orr and Coyne 1989; Szymura and Barton 1991; Welch 2004; Bolnick and Near 2005; Johannesen et al 2006; Turelli and Moyle 2007; Presgraves 2008) effects, or some combination of the two (Scribner and Avise 1994). In the former case, asymmetry may reflect relative abundance of species rather than intrinsic behavioral differences, with the rarer species providing the female parent (Hubbs 1955; Avise and Saunders 1984).…”

Section: The History Of Hybridization Between Triturus Cristatus and mentioning

confidence: 99%

ASYMMETRIC VIABILITY OF RECIPROCAL-CROSS HYBRIDS BETWEEN CRESTED AND MARBLED NEWTS (TRITURUS CRISTATUSANDT. MARMORATUS)

et al. 2009

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Section: The History Of Hybridization Between Triturus Cristatus and mentioning

confidence: 99%

ASYMMETRIC VIABILITY OF RECIPROCAL-CROSS HYBRIDS BETWEEN CRESTED AND MARBLED NEWTS (TRITURUS CRISTATUSANDT. MARMORATUS)

et al. 2009

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“…(For example, a study of 10 vertebrate mitochondrial genomes showed that half of the genome was needed for three phylogenetic methods to recover convincingly the tree indicated by the entire genome; Cummings, Otto & Wakeley, 1995. ) Furthermore, for toads especially it will be important to obtain more data from non-mitochondria1 portions of the genome, because many of these species hybridize naturally (Thornton, 1955;Feder, 1979;Green, 1984), and the pattern of relationships among mitochondrial DNA sequences may differ from that of the populations as a whole due to events such as cytoplasmic gene flow across species boundaries (Wallis & Arntzen, 1989) or differential sorting of ancestral polymorphism (Pamilo & Nei, 1988). For example, because most of my data are mitochondrial, I refrain from drawing strong conclusions about the branching order within species groups within which hybridization is known to occur (e.g.…”

Section: Conclusion And@ture Directionsmentioning

confidence: 99%

Phylogenetic relationships of bufonid frogs and tests of alternate macroevolutionary hypotheses characterizing their radiation

Graybeal

1997

Zoological Journal of the Linnean Society

141

129

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The frog family Bufonidae is a large group distributed throughout all major land masses of the world except the polar regions. Although the monophyly of Bufonidae is strongly supported, phylogenetic relationships within the group are not well understood. Because of apparently large differences in rates ofmorphological and behavioral evolution, speciation, and geographical range, Bufonidae raises intriguing macroevolutionary questions. For example, one might imagine that the group's evolutionary history is congruent (1) with its morphological and behavioral character distribution, or (2) with its current geographical positioning. To examine phylogenetic relationships within Bufonidae and test these alternate hypotheses, DNA sequence data were obtained from four genes, three mitochondrial and one nuclear, from populations throughout the geographic and taxonomic breadth of the family. Phylogenetic analyses of these sequences by several methods support several hypotheses of relationships, notably: (1) contrary to the previous hypotheses of some workers, Bufo is not the basal, wildly paraphyletic genus of Bufonidae, although it is also not monophyletic, (2) the basal splits within bufonids separate South American 'atelopodid' genera from all other bufonids, although the monophyly of the 'atelopodids' is not supported, and (3) the most highly supported clades within the family generally correspond to small-to mediumsized, geographically and morphologically homogeneous groups. These trees are used to test the two alternate macroevolutionary hypotheses, and, while neither hypothesis f a y explains the observed phylogenetic relationships, these relationships are broadly consistent with both character distribution and geography at particular levels. 0 1997 The Linnean Society of London ADDITIONAL KEY WORDS:-Bufonidae -evolutionary radiation -phylogenetic relationshipsphyiogenetic taxonomy -rates of molecular evolution -total evidence.

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“…In Texas populations, as demonstrated byThornton (1955), B. ualliceps hybridizes with B. tooodhousei, a species closely related to B.[otoleri. The tooodhousei-ualliceos hybrids appear also to be sturdy.…”

mentioning

confidence: 90%

Evolutionary Consequences of Hybrid Sterility and Vigor in Toads

Volpe¹

1960

Evolution

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INTERSPECIFIC HYBRIDIZATION INBUFO WOODHOUSEIANDBUFO VALLICEPS

Cited by 26 publications

References 5 publications

ASYMMETRIC VIABILITY OF RECIPROCAL-CROSS HYBRIDS BETWEEN CRESTED AND MARBLED NEWTS (TRITURUS CRISTATUSANDT. MARMORATUS)

ASYMMETRIC VIABILITY OF RECIPROCAL-CROSS HYBRIDS BETWEEN CRESTED AND MARBLED NEWTS (TRITURUS CRISTATUSANDT. MARMORATUS)

Phylogenetic relationships of bufonid frogs and tests of alternate macroevolutionary hypotheses characterizing their radiation

Evolutionary Consequences of Hybrid Sterility and Vigor in Toads

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