The gonadal transcriptome of the unisexual Amazon molly Poecilia formosa in comparison to its sexual ancestors, Poecilia mexicana and Poecilia latipinna

  title={The gonadal transcriptome of the unisexual Amazon molly Poecilia formosa in comparison to its sexual ancestors, Poecilia mexicana and Poecilia latipinna},
  author={Ina Maria Schedina and Detlef Groth and Ingo Schlupp and Ralph Tiedemann},
  journal={BMC Genomics},
BackgroundThe unisexual Amazon molly (Poecilia formosa) originated from a hybridization between two sexual species, the sailfin molly (Poecilia latipinna) and the Atlantic molly (Poecilia mexicana). The Amazon molly reproduces clonally via sperm-dependent parthenogenesis (gynogenesis), in which the sperm of closely related species triggers embryogenesis of the apomictic oocytes, but typically does not contribute genetic material to the next generation. We compare for the first time the gonadal… Expand
Placing the hybrid origin of the asexual Amazon molly (Poecilia formosa) based on historical climate data
This work uses an asexual fish, the Amazon molly, to establish the area in which it was formed via hybridization 125 000 years ago, and finds that model projections to the LIG show a similar map to the present climate model and parental species potentially overlapped in a relatively small area near Tampico, Mexico. Expand
Using asexual vertebrates to study genome evolution and animal physiology: Banded (Fundulus diaphanus) x Common Killifish (F. heteroclitus) hybrid lineages as a model system
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The Legacy of Sexual Ancestors in Phenotypic Variability, Gene Expression, and Homoeolog Regulation of Asexual Hybrids and Polyploids
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Preliminary Identification of Candidate Genes Related to Survival of Gynogenetic Rainbow Trout (Oncorhynchus mykiss) Based on Comparative Transcriptome Analysis
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Are you more than the sum of your parents’ genes? Phenotypic plasticity in a clonal vertebrate and F1 hybrids of its parental species
It is concluded that best location for Amazon mollies is not the best locale for hybrids, which suggests that Amazon molly are not just an unmodified mix of parental genes but instead have adapted to the variable environments in which they are found. Expand
Skipping sex: A nonrecombinant genomic assemblage of complementary reproductive modules
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  • Medicine, Biology
  • BioEssays : news and reviews in molecular, cellular and developmental biology
  • 2020
Genomic and developmental evidence from asexual animals and plants indicates the lack of complementation of molecular changes in the sexual reproductive program is likely the main cause of asexuals' rarity, and can provide an explanatory frame for the developmental diversity and lability of developmental patterns in some a sexuals as well as for the discordant time to extinction estimations. Expand
Characterizing relevant microRNA editing sites in Parkinson's disease
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  • medRxiv
  • 2020
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Comparative analysis of the gonadal transcriptomes of the all-female species Poecilia formosa and its maternal ancestor Poecilia mexicana
The first de novo assembled transcriptome of the Amazon molly in comparison with its maternal ancestor, the Atlantic molly Poecilia mexicana is provided and the presence of 30 meiosis-specific genes within a species where no meiosis is known to take place is remarkable and raises new questions for future research. Expand
Apomictic Reproduction in the Amazon Molly, Poecilia formosa, and Its Triploid Hybrids
The Amazon molly, Poecilia formosa, is the first vertebrate in which unisexuality was recognized and is thought to have arisen in nature as a hybrid of these species. Expand
Male mating behaviour of a molly, Poecilia latipunctata: a third host for the sperm-dependent Amazon molly, Poecilia formosa
Using behavioural tests, it is demonstrated that P. latipunctata males actually copulate with Amazon mollies, despite a pronounced preference for conspecific females, indicating that the Amazon molly effectively exploits all available host species for its gynogenetic mode of reproduction. Expand
Sequence Evolution and Expression of the Androgen Receptor and Other Pathway-Related Genes in a Unisexual Fish, the Amazon Molly, Poecilia formosa, and Its Bisexual Ancestors
The sequence evolution and gene expression of the duplicated genes coding for androgen receptors (ars) and other pathway-related genes, i.e., the estrogen receptors and cytochrome P450, family19, subfamily A, aromatase genes (cyp19as), in the Amazon molly are studied in comparison to its bisexual ancestors. Expand
Allele-specific expression at the androgen receptor alpha gene in a hybrid unisexual fish, the Amazon molly (Poecilia formosa)
Estimation of ASE of the androgen receptor alpha (arα) gene in several distinct tissues of Amazon mollies found an allelic bias favoring the maternal ancestor (P. mexicana) allele in ovarian tissue and an association between an Indel in a known CpG island and differential expression. Expand
Unusual triploid males in a microchromosome-carrying clone of the Amazon molly, Poecilia formosa
The probably aneuploid sperm from P. formosa males can trigger parthenogenetic development of unreduced eggs and show a deviation from the typical 23 bivalents in the synaptonemal complexes as well as in diakinesis due to the triploid state. Expand
The Genome of the Trinidadian Guppy, Poecilia reticulata, and Variation in the Guanapo Population
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Genomic resources for a model in adaptation and speciation research: characterization of the Poecilia mexicana transcriptome
This study provides a valuable genomic resource to study the molecular underpinnings of adaptation to extreme environments in replicated sulfide spring and cave environments and adds to the increasing number of genomic resources in the family Poeciliidae, which are widely used in comparative analyses of behavior, ecology, evolution, and medical genetics. Expand
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
Biogeography of the Amazon molly, Poecilia formosa
It is proposed that prevailing near-shore marine currents act as an effective barrier against further dispersal of the Amazon molly and are argued that male preferences are not responsible for the current range. Expand