INTERSPECIFIC HYBRIDIZATION AND THE EVOLUTIONARY ORIGIN OF A GYNOGENETIC FISH, POECILIA FORMOSA

@article{Turner1980INTERSPECIFICHA,
  title={INTERSPECIFIC HYBRIDIZATION AND THE EVOLUTIONARY ORIGIN OF A GYNOGENETIC FISH, POECILIA FORMOSA},
  author={Bruce J. Turner and Betty Lou Hilton Brett and Robert R. Miller},
  journal={Evolution},
  year={1980},
  volume={34}
}
In recent years, largely through the application of allozyme techniques, several unisexual (thelytokous) vertebrates have been shown to be genetically equivalent to F1 hybrids of certain related bisexual species. The causal relationship, however, between interspecific hybridization and the origin of unisexuality has not been elucidated, and the role of hybridization per se is controversial (Cuellar, 1974, 1977, 1978; Cole, 1978; Wright, 1978). The amazon molly, Poeciliaformosa (Girard), an… Expand
POECILIA MEXICANA IS THE RECENT FEMALE PARENT OF THE UNISEXUAL FISH P. FORMOSA
Poecilia formosa, a small live-bearing fish native to northeastern Mexico, was the first recognized vertebrate with unisexual reproduction (Hubbs and Hubbs, 1932). This all-female "species" producesExpand
Monophyletic origin of multiple clonal lineages in an asexual fish (Poecilia formosa)
TLDR
The molecular phylogenetic evidence and the failure to resynthesize the gynogenetic P. formosa together with the old age of the species indicate that some unisexual vertebrates might be rare not because they suffer the long‐term consequences of clonal reproduction but because they are only very rarely formed as a result of complex genetic preconditions necessary to produce viable and fertile clonal genomes and phenotypes. Expand
Speciation by hybridization in phasmids and other insects
Speciation by hybridization in insects has been recently recognized on the basis of isozyme and chromosome studies showing that several species, either diploid or polyploid, have genomes that combineExpand
EVOLUTIONARY ORIGIN OF A PARTHENOFORM, THE AMAZON MOLLY POECILIA FORMOSA, ON THE BASIS OF A MOLECULAR GENEALOGY
TLDR
DNA sequence analyses of transcribed portions of the genome (tyrosine kinase proto‐oncogenes) demonstrated the Amazon molly Poecilia formosa hybrid state unequivocally and dates the hybridization event further back than would have been predicted on the basis of “Muller's ratchet” for an ecologically successful species. Expand
CLONAL DIVERSITY AND EVOLUTIONARY DYNAMICS IN A DIPLOID‐TRIPLOID BREEDING COMPLEX OF UNISEXUAL FISHES (POECILIA)
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The data will demonstrate that, in contrast to superficially similar unisexual breeding complexes in the related genus, Poeciliopsis, the triploid is apparently the most evolutionarily dynamic component of this complex, and suggest that natural selection is a potent arbiter of clonal diversity within the system. Expand
EVOLUTION OF AN ALL‐FEMALE FISH, MENIDIA CLARKHUBBSI (ATHERINIDAE)
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An allozymic survey of Menidia clarkhubbsi is presented to determine whether the genetic structure of the unisexual species is explained by interspecific hybridization, and, if so, to ask which bisexual forms are the most likely parental species. Expand
The origin and evolution of a unisexual hybrid: Poecilia formosa
  • K. P. Lampert, M. Schartl
  • Biology, Medicine
  • Philosophical Transactions of the Royal Society B: Biological Sciences
  • 2008
TLDR
The important role of hybridization for the origin and evolution of a unisexual hybrid: the Amazon molly, Poecilia formosa is highlighted. Expand
Genetic evidence of unisexual reproduction in the Moroccan hexaploid barbel Labeobarbus fritschi
TLDR
The data supports the hypothesis of the unisexual reproduction of females by way of gynogenesis rather than hybridogenesis, which is supported by molecular markers. Expand
Microsatellites for the gynogenetic Amazon molly,Poecilia formosa: useful tools for detection of mutation rate, ploidy determination and overall genetic diversity
TLDR
Results of cross-amplification of 63 microsatel-lite loci, originally developed for Xiphophorus, tested in the Amazon molly and its two parental species P. mexicana and P. latipinna are reported, finding eight microsatellite loci were found to be poly-morphic. Expand
Population genomics reveals a possible history of backcrossing and recombination in the gynogenetic fish Poecilia formosa
TLDR
The estimation of observed heterozygosity provides support for the hypothesis that the history of this un bisexual species has included backcrossing with the parent species before the onset of gynogenesis, and high levels of variation among asexual individuals suggest that this unisexual vertebrate has more potential to respond to natural selection. Expand
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EVOLUTIONARY GENETICS OF A GYNOGENETIC FISH, POECILIA FORMOSA, THE AMAZON MOLLY
TLDR
The results of an allozyme survey of the protein products of more than 30 loci in samples of P. formosa, its putative ancestral bisexual species, and some other forms closely related to them suggest that the origin of vertebrate parthenoforms by interspecific hybridization may be biologically more complex than hitherto appreciated. Expand
Cytogenetic studies of Poecilia (Pisces). I. Chromosome numbers of naturally occurring poeciliid species and their hybrids from Eastern Mexico.
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  • Biology, Medicine
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TLDR
The presence of a chromosome bearing a sub-terminal centromere within the complement of the Amazon molly provides the only direct evidence to date of centric shifts within the chromosome complements of the subgenus Poecilia. Expand
Distribution of the Gynogenetic Fish, Poecilia formosa , with Remarks on the Evolution of the Species
TLDR
Evidence is presented that the species arose relatively recently in the coastal lagoons, whence it spread coastwise and upstream and can be explained on the basis of present-day biological and human activity. Expand
On the Origin of Parthenogenesis in Vertebrates: The Cytogenetic Factors
TLDR
The main features of the hybrid theory can best be summarized by some of its principal exponents: hybridization diploid unisexuality and then polyploidy are the natural sequence of events, with unisexual populations sustaining themselves by one of the three types of clonal reproduction. Expand
Electrophoretic Demonstration of the Hybrid Origin of the Gynogenetic Teleost Poecilia formosa
Electrophoretic serum protein analysis reveals that the gynogenetic species Poecilia formosa possesses two albumin bands that are identical with those of laboratory-produced hybrids of its twoExpand
Hybridization between Fish Species in Nature
TLDR
This report lays particular emphasis on the researches that the author has conducted during the past thirty-five years, largely with the collaboration of his wife and of several students and colleagues, to all of whom I pay tribute. Expand
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Analysis of the geographical distributions of the well-known cases of animal parthenogenesis in nature reveals that most of these species exist in natural disclimax communities and that within these communities they exist in isolation from closely related congeneric species. Expand
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By hybridizing bisexual (gonochoristic) fishes, all-female clones have been produced that are comparable to those of a wild unisexual "species," Poeciliopsis monacha-lucida, living in northwesternExpand
Systematics of Poecilia mexicana (Pisces: Poeciliidae) in Northern Mexico
TLDR
The structural intermediacy of E. elassodiscus and E. nigrovittatus are structurally intermediate between the two species of Niceforonia and the widespread, lowland E. binotatus complex in the characteristics of digital morphology. Expand
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