Search Results - "Szymura, Jacek M."

A dense linkage map for a large repetitive genome: discovery of the sex-determining region in hybridizing fire-bellied toads (Bombina bombina and Bombina variegata) by Nürnberger, Beate, Baird, Stuart J E, Čížková, Dagmar, Bryjová, Anna, Mudd, Austin B, Blaxter, Mark L, Szymura, Jacek M

“…Abstract Genomic analysis of hybrid zones offers unique insights into emerging reproductive isolation and the dynamics of introgression. Because hybrid genomes…”
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Sexual dimorphism of AMH, DMRT1 and RSPO1 localization in the developing gonads of six anuran species by Piprek, Rafal P, Pecio, Anna, Laskowska-Kaszub, Katarzyna, Kubiak, Jacek Z, Szymura, Jacek M

“…In vertebrates, several genes which are differentially expressed in various species, have been implicated in sex determination and gonadal differentiation. We…”
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Differentiation and development of gonads in the yellow-bellied toad, Bombina variegata L., 1758 (Amphibia: Anura: Bombinatoridae) by Piprek, Rafał P, Pecio, Anna, Szymura, Jacek M

“…The aim of this study was to investigate consecutive stages of gonadal development of the yellow-bellied toad (Bombina variegata) with particular emphasis on…”
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Comparative Analysis of Mitochondrial Genomes in Bombina (Anura; Bombinatoridae) by Pabijan, Maciej, Spolsky, Christina, Uzzell, Thomas, Szymura, Jacek M

“…The complete mitochondrial genomes of two basal anurans, Bombina bombina and B. variegata (Anura; Bombinatoridae), were sequenced. The gene order of their…”
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Modifications of the Testis in Response to Sperm Bundle Formation in the Mediterranean Painted Frog Discoglossus pictus Otth, 1837 (Amphibia: Anura: Discoglossidae) by Piprek, Rafał P, Pecio, Anna, Szymura, Jacek M

“…Larval, juvenile, and adult testes of Discoglossus pictus were examined to investigate how the extremely elongated sperm of this species, up to 2,500 μm, can…”
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Para-allopatry in hybridizing fire-bellied toads (Bombina bombina and B. variegata): Inference from transcriptome-wide coalescence analyses by Nürnberger, Beate, Lohse, Konrad, Fijarczyk, Anna, Szymura, Jacek M., Blaxter, Mark L.

“…Ancient origins, profound ecological divergence, and extensive hybridization make the fire-bellied toads Bombina bombina and B. variegata (Anura:…”
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Complete mitochondrial genomes resolve phylogenetic relationships within Bombina (Anura: Bombinatoridae) by Pabijan, Maciej, Wandycz, Anna, Hofman, Sebastian, Węcek, Karolina, Piwczyński, Marcin, Szymura, Jacek M.

“…[Display omitted] •A mitogenomic phylogeny resolved relationships among extant Bombina lineages.•Major mtDNA lineages diversified in the Miocene.•Most…”
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Mitochondrial genome organization and divergence in hybridizing central European waterfrogs of the Pelophylax esculentus complex (Anura, Ranidae) by Hofman, Sebastian, Pabijan, Maciej, Dziewulska-Szwajkowska, Daria, Szymura, Jacek M.

“…Natural transfer of mitochondrial DNA has occurred between three western Palaearctic waterfrog taxa: Pelophylax lessonae, Pelophylax ridibundus and their…”
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Nuclear and mitochondrial phylogeography of the European fire-bellied toads Bombina bombina and Bombina variegata supports their independent histories by FIJARCZYK, ANNA, NADACHOWSKA, KRYSTYNA, HOFMAN, SEBASTIAN, LITVINCHUK, SPARTAK N., BABIK, WIESŁAW, STUGLIK, MICHAŁ, GOLLMANN, GÜNTER, CHOLEVA, LUKÁŠ, COGĂLNICEANU, DAN, VUKOV, TANJA, DŽUKIĆ, GEORGE, SZYMURA, JACEK M.

“…Exact location and number of glacial refugia still remain unclear for many European cold‐blooded terrestrial vertebrates. We performed a fine‐scaled multilocus…”
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Multiple sex pheromone genes are expressed in the abdominal glands of the smooth newt (Lissotriton vulgaris) and Montandon's Newt (L. montandoni) (Salamandridae) by Artur, Osikowski, Wiesław, Babik, Paweł, Grzmil, Jacek M, Szymura

“…The smooth newt (Lissotriton "Triturus" vulgaris) and Montandon's newt (L."T." montandoni) are sister species exhibiting pronounced differences in male…”
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Complex Admixture Preceded and Followed the Extinction of Wisent in the Wild by Wecek, Karolina, Hartmann, Stefanie, Paijmans, Johanna L A, Taron, Ulrike, Xenikoudakis, Georgios, Cahill, James A, Heintzman, Peter D, Shapiro, Beth, Baryshnikov, Gennady, Bunevich, Aleksei N, Crees, Jennifer J, Dobosz, Roland, Manaserian, Ninna, Okarma, Henryk, Tokarska, Malgorzata, Turvey, Samuel T, Wójcik, Jan M, Zyla, Waldemar, Szymura, Jacek M, Hofreiter, Michael, Barlow, Axel

“…Retracing complex population processes that precede extreme bottlenecks may be impossible using data from living individuals. The wisent (Bison bonasus),…”
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Phylogeography of the fire-bellied toads Bombina: independent Pleistocene histories inferred from mitochondrial genomes by HOFMAN, SEBASTIAN, SPOLSKY, CHRISTINA, UZZELL, THOMAS, COGĂLNICEANU, DAN, BABIK, WIESŁAW, SZYMURA, JACEK M

“…The fire-bellied toads Bombina bombina and Bombina variegata, interbreed in a long, narrow zone maintained by a balance between selection and dispersal…”
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Differential effects of testosterone and 17β-estradiol on gonadal development in five anuran species by Piprek, Rafał P, Pecio, Anna, Kubiak, Jacek Z, Szymura, Jacek M

“…Sex hormones are essential for sexual differentiation and play a key role in the development of gonads in amphibians. The goal of this study was to evaluate…”
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Phylogenetic relationships among four new complete mitogenome sequences of Pelophylax (Amphibia: Anura) from the Balkans and Cyprus by Hofman, Sebastian, Pabijan, Maciej, Osikowski, Artur, Litvinchuk, Spartak N, Szymura, Jacek M

“…We present the full-length mitogenome sequences of four European water frog species: Pelophylax cypriensis, P. epeiroticus, P. kurtmuelleri and P. shqipericus…”
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The structure of spermatogenic cysts and number of Sertoli cells in the testes of Bombina bombina and Bombina variegata (Bombinatoridae, Anura, Amphibia) by Rozenblut-Kościsty, Beata, Piprek, Rafał, Pecio, Anna, Bartmańska, Jolanta, Szymura, Jacek M., Ogielska, Maria

“…Spermatogenesis in amphibians occurs inside spermatogenic cysts formed by Sertoli cells (SCs). SCs do not constitute a permanent population and their number…”
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Differential effects of busulfan on gonadal development in five divergent anuran species by Piprek, Rafał P., Pecio, Anna, Kubiak, Jacek Z., Szymura, Jacek M.

“…► The effects of busulfan on the gonadal development were investigated in anuran amphibians. ► The tadpoles treated with busulfan did not display sex reversal…”
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Limited mitochondrial DNA introgression in a Bombina hybrid zone by HOFMAN, SEBASTIAN, SZYMURA, JACEK M.

“…We analysed the variation at mitochondrial DNA (mtDNA) and six allozyme loci in two transects across a hybrid zone between the fire‐bellied toads Bombina…”
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Evolutionary trend for metamery reduction and gonad shortening in Anurans revealed by comparison of gonad development by Piprek, Rafal P, Pecio, Anna, Kloc, Malgorzata, Kubiak, Jacek Z, Szymura, Jacek M

“…The gonads develop as the metameric mesodermal structures at the ventral surface of the mesonephroi. To study the evolutionary trends for anuran gonads, we…”
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Complete mitochondrial genome of the Greek marsh frog Pelophylax cretensis (Anura, Ranidae) by Hofman, Sebastian, Pabijan, Maciej, Osikowski, Artur, Szymura, Jacek M

“…We sequenced the complete mitochondrial genome of the Greek marsh frog Pelophylax cretensis, a water frog species endemic to the island of Crete. The genome…”
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HYBRIDIZATION OF BOMBINA BOMBINA AND B. VARIEGATA (ANURA, DISCOGLOSSIDAE) AT A SHARP ECOTONE IN WESTERN UKRAINE: COMPARISONS ACROSS TRANSECTS AND OVER TIME by Yanchukov, Alexey, Hofman, Sebastian, Szymura, Jacek M, Mezhzherin, Sergey V, Morozov-Leonov, Sviatoslav Y, Barton, Nicholas H, Nürnberger, Beate

“…Bombina bombina and B. variegata are two anciently diverged toad taxa that have adapted to different breeding habitats yet hybridize freely in zones of overlap…”
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