Independent evolutionary transitions to pueriparity across multiple timescales in the viviparous genus Salamandra

Mulder, Kevin P.; Alarcón-Ríos, Lucía; Nicieza, Alfredo G.; Fleischer, Robert C.; Bell, Rayna C.; Velo‐Antón, Guillermo

doi:10.1016/j.ympev.2021.107347

Cited by 9 publications

(3 citation statements)

References 74 publications

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“…Previous studies investigating prey consumption in S. salamandra detected dietary differences between sexes [22], ages [59], seasons [50], and populations [15]. Follow-up studies should also consider comprehensive sampling of distinct habitats throughout the species' range, as well as the remarkable intraspecific differentiation in reproductive modes [60], head shape [61], and behavioral strategies [62][63][64], both between and within subspecies of S. salamandra. The inclusion of these variables may help to elucidate the factors that contribute to the dietary variation observed in this study.…”

Section: Dietary Variation Across Regionsmentioning

confidence: 99%

COI Metabarcoding Provides Insights into the Highly Diverse Diet of a Generalist Salamander, Salamandra salamandra (Caudata: Salamandridae)

2022

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DNA metabarcoding has proven to be an accessible, cost-effective, and non-invasive tool for dietary analysis of predators in situ. Although DNA metabarcoding provides numerous benefits in characterizing diet—such as detecting prey animals that are difficult to visually identify—this method has seen limited application in amphibian species. Here, we used DNA metabarcoding to characterize the diet of fire salamanders (Salamandra salamandra) (Linnaeus, 1758) in three distinct regions across the northwestern Iberian Peninsula. To test the efficiency of COI-based metabarcoding in determining salamanders’ diet diversity, we compared our COI-based results with results from traditional diet studies from neighboring and distant populations, as well as with recent findings obtained in a DNA metabarcoding study using 18S. Two COI primers were used in combination to investigate the potential impact of primer bias in prey detection. Our COI metabarcoding approach increased taxonomic resolution and supported a generalist diet in S. salamandra. Between primers, there were no significant differences in the diversity and richness of prey detected. We observed differences in the prevalence of prey identified between sampling regions both in our study and in other studies of S. salamandra diet. This COI metabarcoding study provides recommendations and resources for subsequent research using DNA metabarcoding to study amphibian diets.

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Section: Dietary Variation Across Regionsmentioning

confidence: 99%

COI Metabarcoding Provides Insights into the Highly Diverse Diet of a Generalist Salamander, Salamandra salamandra (Caudata: Salamandridae)

2022

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“…The existence of two or more distinctly colored phenotypes among individuals of an interbreeding population is known as color polymorphism [ 1 ]. Color polymorphism is common in many animals, occurring from invertebrates to vertebrates [ 2 , 3 , 4 ]. It is an ideal model system to investigate and understand fundamental evolutionary processes [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Complete Mitochondrial Genomes of Nedyopus patrioticus: New Insights into the Color Polymorphism of Millipedes

Zhang,

Xu,

Chen

et al. 2024

CIMB

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There has been debate about whether individuals with different color phenotypes should have different taxonomic status. In order to determine whether the different color phenotypes of Nedyopus patrioticus require separate taxonomic status or are simply synonyms, here, the complete mitochondrial genomes (mitogenomes) of two different colored N. patrioticus, i.e., red N. patrioticus and white N. patrioticus, are presented. The two mitogenomes were 15,781 bp and 15,798 bp in length, respectively. Each mitogenome contained 13 PCGs, 19 tRNAs, 2 rRNAs, and 1 CR, with a lack of trnI, trnL2, and trnV compared to other Polydesmida species. All genes were located on a single strand in two mitogenomes. Mitochondrial DNA analyses revealed that red N. patrioticus and white N. patrioticus did not show clear evolutionary differences. Furthermore, no significant divergence was discovered by means of base composition analysis. As a result, we suggest that white N. patrioticus might be regarded as a synonym for red N. patrioticus. The current findings confirmed the existence of color polymorphism in N. patrioticus, which provides exciting possibilities for future research. It is necessary to apply a combination of molecular and morphological methods in the taxonomy of millipedes.

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“…Intraspecific diversity can also take the form of polymorphisms in which alternative distinct phenotypes (i.e., morphs) coexist within a single species in organisms as different as invertebrates, fish, amphibians, birds and mammals (West-Eberhard, 2003;Lackey et al, 2019;Foster et al, 2021;Klann et al, 2021). The differentiation can involve some specific traits but also the whole development of organisms, their life cycle and habitat (Laudet, 2011;McNamara, 2012;Mulder et al, 2022). This is the case in several families of newts and salamanders expressing facultative paedomorphosis (Gould, 1977).…”

Section: Introductionmentioning

confidence: 99%

Quantifying rarity of intraspecific diversity at multiple spatial scales by combining fine-grain citizen-based data across national boundaries

Denoël

Schmidt

Fonters

et al. 2023

Biological Conservation

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Independent evolutionary transitions to pueriparity across multiple timescales in the viviparous genus Salamandra

Cited by 9 publications

References 74 publications

COI Metabarcoding Provides Insights into the Highly Diverse Diet of a Generalist Salamander, Salamandra salamandra (Caudata: Salamandridae)

COI Metabarcoding Provides Insights into the Highly Diverse Diet of a Generalist Salamander, Salamandra salamandra (Caudata: Salamandridae)

Complete Mitochondrial Genomes of Nedyopus patrioticus: New Insights into the Color Polymorphism of Millipedes

Quantifying rarity of intraspecific diversity at multiple spatial scales by combining fine-grain citizen-based data across national boundaries

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