Evolutionary Origin of a Parthenoform, The Amazon Molly Poecilia formosa, on the Basis of a Molecular Genealogy

Schartl, Manfred; Wilde, Brigitta; Schlupp, Ingo; Parzefall, Jakob

doi:10.2307/2410406

Cited by 137 publications

(146 citation statements)

References 8 publications

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“…Similar results were found in parthenogenetic geckos (Moritz & Heideman 1993;Kearney et al 2006). Recent analyses that included information from mitochondrial as well as nuclear DNA suggested that the initial hybridization event leading to the formation of P. formosa happened ca 280 000 years ago (Schartl et al 1995b;Meyer et al 2006). Estimating three generations per year (Hubbs & Hubbs 1932), this equals approximately 840 000 generations.…”

Section: Interspecific Hybridization Leading To the Origin Of The Amasupporting

confidence: 69%

“…Mitochondrial DNA showed that P. mexicana was the female parent of P. formosa (Avise et al 1991). Sequence analyses of nuclear genes and a phylogenetic analysis suggested a subspecies of P. mexicana, Poecilia mexicana limantouri to be the maternal ancestor of P. formosa (Turner et al 1980a;Schartl et al 1995b). Molecular evidence for the hybrid origin of P. formosa was also found with serum samples and later confirmed by allozyme data (Turner et al 1980b).…”

Section: Interspecific Hybridization Leading To the Origin Of The Amamentioning

confidence: 77%

“…They are often assessed as evolutionary 'dead ends' (Bell 1982). Many species, however, are rather abundant, show large ranges of geographical distribution and have shown to be evolutionary older than predicted from theoretical models (Quattro et al 1992;Schartl et al 1995b;Kearney et al 2006).…”

Section: Introductionmentioning

confidence: 94%

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The origin and evolution of a unisexual hybrid:Poecilia formosa

Lampert

Schartl

2008

Phil. Trans. R. Soc. B

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Clonal reproduction in vertebrates can always be traced back to hybridization events as all known unisexual vertebrates are hybrids between recognized species or genetically defined races. Interestingly, clonal vertebrates often also rely on interspecific matings for their reproduction because gynogenesis (sperm-dependent parthenogenesis) and hybridogenesis are common modes of propagation. While in most cases these hybridization events leave no hereditary traces in the offspring, occasionally the genome exclusion mechanism fails and either small parts of male genetic material remain inside the oocyte in the form of microchromosomes, or fusion of the sperm nucleus with the oocyte nucleus leads to polyploid individuals. In this review, we highlight the important role of hybridization for the origin and evolution of a unisexual hybrid: the Amazon molly, Poecilia formosa.

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Section: Interspecific Hybridization Leading To the Origin Of The Amasupporting

confidence: 69%

Section: Interspecific Hybridization Leading To the Origin Of The Amamentioning

confidence: 77%

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The origin and evolution of a unisexual hybrid:Poecilia formosa

Lampert

Schartl

2008

Phil. Trans. R. Soc. B

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“…The DNA probe used in Southern hybridization experiments is a 647-bp XbaI-XhoI subfragment of the original EcoRI fragment containing only the partial Poseidon element. Genomic DNA was isolated as described (Schartl et al 1996). For Southern analysis, genomic DNA was blotted, after EcoRI digestion and electrophretic fractionation, onto positively charged nylon membranes and hybridized with the probe at 42°C in 35% formamide, 0.1% sodium pyrophosphate, 50 mM TRIS-HCl (pH 7.5), 5´SSC, 1% SDS, 5´Denhardt's solution, and 100 lg/ml calf thymus DNA.…”

Section: Dna Manipulationsmentioning

confidence: 99%

Fish retroposons related to the Penelope element of Drosophila virilis define a new group of retrotransposable elements

2001

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Poseidon and Neptune are two ancient lineages of retroposons related to the Penelope element from Drosophila virilis. They have been identified in various teleost fish species, including the medakafish (Oryzias latipes), and the pufferfishes Fugu rubripes and Tetraodon nigroviridis, whose genomes are currently being sequenced. Some of these elements are highly reiterated in fish genomes. Penelope-related elements were also identified in blood fluke, shrimp, sea urchin, cichlid fish and frog, showing that they are widespread in animals. Penelope-related retroposons were not detected among sequences from the Drosophila melanogaster and human genome projects, suggesting that they have been lost from certain animal lineages. A sequence encoding a putative Uri (also called GIY-YIG) endonuclease domain was detected downstream from the gene for reverse transcriptase. To the best of our knowledge, this type of endonuclease sequence has previously been identified in group I introns and in genes for prokaryotic excinucleases but not in retrotransposable elements. Penelope-related elements are frequently truncated at their 5' ends and can also be flanked by long terminal repeat-like structures. Phylogenetic analysis of the reverse transcriptase domain failed to assign Penelope-related retroposons to one of the major groups of retroelements. Overall, therefore, the evidence strongly suggests that these sequences represent a new group of retrotransposable elements.

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“…Sexually antagonistic coevolution is typically thought of as an intraspecific process, but mating interactions between species can also generate interspecific conflict between the sexes that in some cases may impose even stronger selective pressures than those acting intraspecifically [7,8]. The costs and benefits of hybridization can vary in magnitude and even direction between species and sexes [9][10][11], with the same hybrid progeny representing a fitness benefit for one parent but a cost to the other.…”

Section: Introductionmentioning

confidence: 99%

Inter-genomic sexual conflict drives antagonistic coevolution in harvester ants

Herrmann

Cahan

2014

Proc. R. Soc. B.

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The reproductive interests of males and females are not always aligned, leading to sexual conflict over parental investment, rate of reproduction and mate choice. Traits that increase the genetic interests of one sex often occur at the expense of the other, selecting for counter-adaptations leading to antagonistic coevolution. Reproductive conflict is not limited to intraspecific interactions; interspecific hybridization can produce pronounced sexual conflict between males and females of different species, but it is unclear whether such conflict can drive sexually antagonistic coevolution between reproductively isolated genomes. We tested for hybridization-driven sexually antagonistic adaptations in queens and males of the socially hybridogenetic 'J' lineages of Pogonomyrmex harvester ants, whose mating system promotes hybridization in queens but selects against it in males. We conducted no-choice mating assays to compare patterns of mating behaviour and sperm transfer between inter-and intra-lineage pairings. There was no evidence for mate discrimination on the basis of pair type, and the total quantity of sperm transferred did not differ between intra-and inter-lineage pairs; however, further dissection of the sperm transfer process into distinct mechanistic components revealed significant, and opposing, cryptic manipulation of copulatory investment by both sexes. Males of both lineages increased their rate of sperm transfer to high-fitness intra-lineage mates, with a stronger response in the rarer lineage for whom mating mistakes are the most likely. By contrast, the total duration of copulation for intra-lineage mating pairs was significantly shorter than for inter-lineage crosses, suggesting that queens respond to prevent excessive sperm loading by prematurely terminating copulation. These findings demonstrate that sexual conflict can lead to antagonistic coevolution in both intra-genomic and inter-genomic contexts. Indeed, the resolution of sexual conflict may be a key determinant of the long-term evolutionary potential of host-dependent reproductive strategies, counteracting the inherent instabilities arising from such systems.

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Evolutionary Origin of a Parthenoform, The Amazon Molly Poecilia formosa, on the Basis of a Molecular Genealogy

Cited by 137 publications

References 8 publications

The origin and evolution of a unisexual hybrid:Poecilia formosa

The origin and evolution of a unisexual hybrid:Poecilia formosa

Fish retroposons related to the Penelope element of Drosophila virilis define a new group of retrotransposable elements

Inter-genomic sexual conflict drives antagonistic coevolution in harvester ants

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