A genetically confirmed hybrid between Natrix astreptophora and N. maura, two deeply divergent and ancient snake species

Using two mitochondrial DNA fragments and six nuclear genes, we confirmed that a morphologically intermediate snake, captured in Andalusia, southwestern Spain (municipality of Huelva), was an F1 hybrid between a female Natrix astreptophora and a male N. maura. The two parental species diverged 21.5...

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Main Authors: Andrea Criado-Flórez, Juan Pablo González de la Vega, Gabriel Martínez del Marmol, Uwe Fritz
Format: Article
Language:English
Published: Pensoft Publishers 2025-02-01
Series:Herpetozoa
Online Access:https://herpetozoa.pensoft.net/article/140551/download/pdf/
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author Andrea Criado-Flórez
Juan Pablo González de la Vega
Gabriel Martínez del Marmol
Uwe Fritz
author_facet Andrea Criado-Flórez
Juan Pablo González de la Vega
Gabriel Martínez del Marmol
Uwe Fritz
author_sort Andrea Criado-Flórez
collection DOAJ
description Using two mitochondrial DNA fragments and six nuclear genes, we confirmed that a morphologically intermediate snake, captured in Andalusia, southwestern Spain (municipality of Huelva), was an F1 hybrid between a female Natrix astreptophora and a male N. maura. The two parental species diverged 21.5 million years ago, which is why their capability to hybridize is remarkable. The interspecific mating could have been facilitated by the rarity of N. astreptophora and the abundance of N. maura in southwestern Spain, making it difficult for N. astreptophora females to find conspecific males. In the face of previously published genomic signatures for ancient gene flow between N. astreptophora and N. maura, our finding raises the question of whether occasional hybridization still contributes to a continued exchange of genetic information between these two deeply divergent and old taxa.
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id doaj-art-8a07733c9cb949c292f945b05f0e17f8
institution Kabale University
issn 2682-955X
language English
publishDate 2025-02-01
publisher Pensoft Publishers
record_format Article
series Herpetozoa
spelling doaj-art-8a07733c9cb949c292f945b05f0e17f82025-02-05T08:30:57ZengPensoft PublishersHerpetozoa2682-955X2025-02-0138212410.3897/herpetozoa.38.e140551140551A genetically confirmed hybrid between Natrix astreptophora and N. maura, two deeply divergent and ancient snake speciesAndrea Criado-Flórez0Juan Pablo González de la Vega1Gabriel Martínez del Marmol2Uwe Fritz3Museum of Zoology, Senckenberg DresdenAtlas Herpetológico de AndalucíaUnaffiliatedMuseum of Zoology, Senckenberg DresdenUsing two mitochondrial DNA fragments and six nuclear genes, we confirmed that a morphologically intermediate snake, captured in Andalusia, southwestern Spain (municipality of Huelva), was an F1 hybrid between a female Natrix astreptophora and a male N. maura. The two parental species diverged 21.5 million years ago, which is why their capability to hybridize is remarkable. The interspecific mating could have been facilitated by the rarity of N. astreptophora and the abundance of N. maura in southwestern Spain, making it difficult for N. astreptophora females to find conspecific males. In the face of previously published genomic signatures for ancient gene flow between N. astreptophora and N. maura, our finding raises the question of whether occasional hybridization still contributes to a continued exchange of genetic information between these two deeply divergent and old taxa.https://herpetozoa.pensoft.net/article/140551/download/pdf/
spellingShingle Andrea Criado-Flórez
Juan Pablo González de la Vega
Gabriel Martínez del Marmol
Uwe Fritz
A genetically confirmed hybrid between Natrix astreptophora and N. maura, two deeply divergent and ancient snake species
Herpetozoa
title A genetically confirmed hybrid between Natrix astreptophora and N. maura, two deeply divergent and ancient snake species
title_full A genetically confirmed hybrid between Natrix astreptophora and N. maura, two deeply divergent and ancient snake species
title_fullStr A genetically confirmed hybrid between Natrix astreptophora and N. maura, two deeply divergent and ancient snake species
title_full_unstemmed A genetically confirmed hybrid between Natrix astreptophora and N. maura, two deeply divergent and ancient snake species
title_short A genetically confirmed hybrid between Natrix astreptophora and N. maura, two deeply divergent and ancient snake species
title_sort genetically confirmed hybrid between natrix astreptophora and n maura two deeply divergent and ancient snake species
url https://herpetozoa.pensoft.net/article/140551/download/pdf/
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