Chromosome Data for Malagasy Poison Frogs (Amphibia: Ranidae: Mantella) and Their Bearing on Taxonomy and Phylogeny

Odierna, Gaëtano; Vences, Miguel; Aprea, Gennaro; Lötters, Stefan; Andreone, Franco

doi:10.2108/zsj.18.505

Cited by 16 publications

(22 citation statements)

References 20 publications

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“…In the 16S rDNA analysis of Schaefer et al (2002), M. aurantiaca appeared as the sister group of M. madagascariensis, whereas M. pulchra was considered the most basal species in the group. Allozyme data suggested that M. madagascariensis and M. pulchra were sister species, in agreement with their color pattern (yellowish flank blotches), karyology (Odierna et al, 2001), and distribution in rainforest. In contrast, the other three species of the group lack flank blotches and our fieldwork confirmed that they mainly live in gallery forests of swamp areas.…”

Section: Phylogenetic Relationships In Mantellasupporting

confidence: 63%

“…Although several Mantella species are easily distinguished based on their coloration patterns, previous studies on osteology (Vences et al, 1998b), allozymes (Vences et al, 1998c), and karyological data (Odierna et al, 2001;Pintak et al, 1998) have either produced conflicting phylogenetic results or an unsatisfactory level of resolution. This is particularly true of the Golden Mantella (Mantella aurantiaca), which is the most distinctive representative of its genus, and a well-established flagship species for habitat conservation in central eastern Madagascar (Zimmermann, 1996).…”

Section: Introductionmentioning

confidence: 99%

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High mitochondrial diversity within and among populations of Malagasy poison frogs

Vences¹,

Chiari²,

Raharivololoniaina³

et al. 2004

Molecular Phylogenetics and Evolution

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The diurnal, brightly colored, and toxic frogs of the genus Mantella are among the most prominent representatives of the endemic anuran fauna of Madagascar. Especially three closely related species, M. aurantiaca, M. crocea, and M. milotympanum, are intensively collected for the pet trade, although basic data on their natural history and genetic diversity are still lacking. Our phylogenetic analyses based on 2.8 kbp of partial 16S rRNA, 12S rRNA, cytochrome b, and rhodopsin DNA sequences confirmed that these species belong to one of the five major clades in Mantella, the M. madagascariensis group. A haplotype network constructed using 830 bp of cytochrome b in 49 individuals from seven populations revealed that M. milotympanum and M. crocea have largely similar haplotypes sharing, confirming doubts about the species validity of M. milotympanum and indicating independent evolution of bright orange pattern in M. milotympanum and M. aurantiaca. Further, clustering of four individuals of M. aurantiaca from Andranomena with M. crocea suggests incomplete lineage sorting or introgression resulting from secondary contact of refugial populations. AMOVA confirmed significant intrapopulation nucleotide diversity (>20%). These diversity patterns and our field observations indicate relatively large population sizes. Hence, overcollecting is probably a minor problem and conservation efforts should rather focus on saving some large populations from habitat destruction through logging and forest fires.

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Section: Phylogenetic Relationships In Mantellasupporting

confidence: 63%

Section: Introductionmentioning

confidence: 99%

High mitochondrial diversity within and among populations of Malagasy poison frogs

Vences¹,

Chiari²,

Raharivololoniaina³

et al. 2004

Molecular Phylogenetics and Evolution

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“…The heterogeneous genus Mantidactylus is now split into 12 subgenera (Andreone, in press b), and it is likely paraphyletic (Vences et al, 2002d). The genus Mantella features 16 species Odierna et al, 2001;Staniszewski, 2001), with aposematic colouration and accumulation of alkaloids in the skin (Daly, 1984). The genus Aglyptodactylus, formerly included in Rhacophorinae or in Raninae (e.g., Glaw & Vences, 1994;Glaw et al, 1998), now belongs to Laliostominae together with Laliostoma labrosum (formerly Tomopterna labrosd) (Vences et al, 2000a;Vences & Glaw, 2001a).…”

Section: An Overview Of the Madagascar! Amphibiansmentioning

confidence: 99%

Conservation priorities and potential threats influencing the hyper‐diverse amphibians of Madagascar

Andreone¹,

Luiselli²

2003

Italian Journal of Zoology

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The conservation of Madagascan amphibians was assessed using a set of natural history parameters. The more than two hundred species were grouped into 51 operational conservation units to get more reliable results than those afforded by the low level of knowledge available for most of the species. Results in terms of ecological sensitivity were obtained by means of a univariate ranking and cluster analysis. Mantelline mantellids and cophyline microhylids were among the amphibians most sensitive, since they are closely related to a stable rainforest environment. The less sensitive species in terms of ecological preferences appeared to be those breeding in temporary ponds and living in dry-arid and savannah-like areas (e.g., Dyscophinae, Laliostoma labrosum, and Hyperoliidae). Other species, closely linked to the aquatic environment, are less affected by deforestation, and may occur in already degraded areas when a stream network and associated gallery forest still exist. For some genera (e.g., Mantella and Scaphiophrynè) the pet trade may constitute a threat (when dealing with already disturbed and restricted populations). In this sense, most Mantella species must be managed in terms of number of specimens exported. This is especially true for M. cowani and M. bernhardi, which have a very narrow distribution area. Mantella cowani is severely endangered, since it is a "plateau" species, and suffers from a combination of both habitat degradation and capture for commerce. A principal component analysis on Ranidae, Boophinae, Mantellinae, Laliostominae, Dyscophinae, Scaphiophryninae, Cophylinae, and Hyperoliidae showed that the variables ordering the various taxa were activity type, distribution, and habitat breadth.

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“…This formula is almost invariably shown in most genera of Mantellidae (e.g., Aglyptodactylus, Laliostoma, Mantella, and Boophis), with exceptional presence of single acrocentric elements in a few species of Mantella and Boophis (Blommers-Schlösser, 1978;Odierna et al, 2001). In contrast, in Mantidactylus many deviations from this "standard" pattern are known, from the karyotype of 2n D 24 in the subgenera Brygoomantis and Spinomantis, to 2n D 30 (Ochthomantis, see Andreone, in press), to the presence of acrocentric chromosomes in the direct-developing lineage (Blommers-Schlösser, 1978).…”

Section: Karyotype Stability and Nor Position As Phylogeneticallyinfomentioning

confidence: 82%

A new frog of the genus Mantidactylus from the rainforests of north-eastern Madagascar, and its karyological affinities

Andreone¹,

Aprea²,

Vences³

et al. 2003

Amphib Reptilia

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We describe a new species of the genus Mantidactylus found during field inventories in the northeastern rainforests of Madagascar. Mantidactylus salegy sp. n. reaches a snout-vent length of 45-50 mm, has evident dorsolateral ridges and whitish spots on the upper jaws (mainly in females). The vocal sacs in males are distinctly visible and paired subgular, without strongly inflatable areas recognizable between the blackish lateral skin flaps on the throat. This frog exhibits a mosaic of characters previously thought to be typical for either the subgenera Gephyromantis or Phylacomantis. Therefore, it is a crucial discovery towards better understanding of the relationships between the taxa included in these two subgenera, supporting previous molecular results which indicated their paraphyly. The call of M. salegy consists of a rapid series of 8-11 rattling notes emitted at 1000-3500 Hz. We also provide karyological data for M. salegy, and for several related species, M. granulatus, M. leucomaculatus, M. moseri, M. redimitus, M. zavona, and M. pseudoasper (attributed to the subgenus Phylacomantis) and M. luteus (subgenus Gephyromantis). In terms of general chromosome morphology and structure, NOR localisation and heterochromatin characteristics, M. salegy shows similarities to M. redimitus, M. zavona and M. leucomaculatus, all included within Phylacomantis. Our data confirm that NOR position is a phylogenetically informative character

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Chromosome Data for Malagasy Poison Frogs (Amphibia: Ranidae: Mantella) and Their Bearing on Taxonomy and Phylogeny

Cited by 16 publications

References 20 publications

High mitochondrial diversity within and among populations of Malagasy poison frogs

High mitochondrial diversity within and among populations of Malagasy poison frogs

Conservation priorities and potential threats influencing the hyper‐diverse amphibians of Madagascar

A new frog of the genus Mantidactylus from the rainforests of north-eastern Madagascar, and its karyological affinities

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