A new species of Homonota (Squamata, Gekkonidae) from Paraguay, with a key to the genus

Cacciali, Pier; Avila, I. García; Bauer, Frederick Charles

doi:10.11606/issn.2316-9079.v6i2p137-146

Cited by 7 publications

(13 citation statements)

References 7 publications

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“…More recently, Cacciali et al . () described a new species for Paraguay, Homonota rupicola , and constructed a dichotomous key for all the described species of the genus. Gamble et al .…”

Section: Introductionmentioning

confidence: 99%

Molecular phylogeny of the New World gecko genus Homonota (Squamata: Phyllodactylidae)

et al. 2014

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The genus Homonota was described by Gray (1845) and currently includes 10 species: Homonota andicola, H. borellii, H. darwinii, H. fasciata, H. rupicola, H. taragui, H. underwoodi, H. uruguayensis, H. williamsii & H. whitii and one subspecies of H. darwinii (H. darwinii macrocephala). It is distributed from 15° latitude south in southern Brazil, through much of Bolivia, Paraguay, Uruguay and Argentina to 54° south in Patagonia and across multiple different habitats. Several morphological taxonomic studies on a subset of these species have been published, but no molecular phylogenetic hypotheses are available for the genus. The objective of this study is to present a molecular phylogenetic hypothesis for all the described species in the genus. We sequenced two mitochondrial genes (cyt‐b & 12S: 1745 bp), seven nuclear protein coding (RBMX, DMLX, NKTR, PLRL, SINCAIP, MXRA5, ACA4: 5804 bp) and two anonymous nuclear loci (30Hb, 19Hb: 1306 bp) and implemented traditional concatenated analyses (MP, ML, BI) as well as species‐tree (*beast) approaches. All methods recovered almost the same topology. We recovered the genus Homonota as monophyletic with strong statistical support. Within Homonota, there are three strongly supported clades (whitii, borellii and fasciata), which differ from those previously proposed based on scale shape, osteology, myology and quantitative characters. Detailed morphological analyses based on this highly resolved and well‐supported phylogeny will provide a framework for understanding morphological evolution and historical biogeography of this phenotypically conservative genus. We hypothesize that extensive marine transgressions during Middle and Late Miocene most probably isolated the ancestors of the three main clades in eastern Uruguay (borellii group), north‐western Argentina‐southern Bolivia (fasciata group), and central‐western Argentina (whitii group). Phylogeographic and morphological/morphometric analyses coupled with paleo‐niche modelling are needed to better understand its biogeographical history.

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“…More recently, Cacciali et al . () described a new species for Paraguay, Homonota rupicola , and constructed a dichotomous key for all the described species of the genus. Gamble et al .…”

Section: Introductionmentioning

confidence: 99%

Molecular phylogeny of the New World gecko genus Homonota (Squamata: Phyllodactylidae)

et al. 2014

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“…Nowhere is this more evident than South America's cis-Andean open biomes: Cerrado, Seasonally Dry Tropical Forests (SDTF, including Caatinga), and Chaco (Werneck, 2011). New vertebrate species continue to be described from these areas every year (Cacciali et al, 2007, Cassimiro and Rodrigues, 2009, Colli et al, 2009, Diniz-Filho et al, 2005, Patterson, 2000, Rodrigues and Dos Santos, 2008. South America's open biomes are among the most critically endangered habitats in the world, having been largely transformed by industrial agriculture and cattle production (Altieri, 2009, Klink and Machado, 2005, Leal et al, 2005, Zak et al, 2004.…”

Section: Introductionmentioning

confidence: 99%

Phylogeny and cryptic diversity in geckos (Phyllopezus; Phyllodactylidae; Gekkota) from South America’s open biomes

Gamble

Colli

Rodrigues

et al. 2012

Molecular Phylogenetics and Evolution

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The gecko genus Phyllopezus occurs across South America's open biomes: Cerrado, Seasonally Dry Tropical Forests (SDTF, including Caatinga), and Chaco. We generated a multi-gene dataset and estimated phylogenetic relationships among described Phyllopezus taxa and related species. We included exemplars from both described Phyllopezus pollicaris subspecies, P. p. pollicaris and P. p.przewalskii. Phylogenies from the concatenated data as well as species trees constructed from individual gene trees were largely congruent. All phylogeny reconstruction methods showed Bogertia lutzae as the sister species of Phyllopezus maranjonensis, rendering Phyllopezus paraphyletic. We synonymized the monotypic genus Bogertia with Phyllopezus to maintain a taxonomy that is isomorphic with phylogenetic history. We recovered multiple, deeply divergent, cryptic lineages within P. pollicaris. These cryptic lineages possessed mtDNA distances equivalent to distances among other gekkotan sister taxa. Described P. pollicaris subspecies are not reciprocally monophyletic and current subspecific taxonomy does not accurately reflect evolutionary relationships among cryptic lineages. We highlight the conservation significance of these results in light of the ongoing habitat loss in South America's open biomes.

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“…The diversity of species groups within the genus Homonota was explored in the last decade, and resulted in the description of H. williamsii (Avila et al 2012) of the whitii group, and H. rupicola (Cacciali et al 2007b) and H. taragui (Cajade et al 2013) of the borellii group. However, the taxonomy of the horrida group (referred to as fasciata in Morando et al 2014) was untouched for many years, and was comprised of two species (H. horrida and H. underwoodi).…”

Section: Discussionmentioning

confidence: 99%

“…Information to generate the key was based on Cacciali et al (2007b), Avila et al (2012), andCájade et al (2013). Given that the holotype of H. fasciata is completely bleeched, we consider the information on its coloration from the original color description (Duméril and Bibron 1836).…”

Section: Key For Identification Of the Species Of The Genus Homonotamentioning

confidence: 99%

“…This latter species was described from "Martinique", a Caribbean island located out of the distribution of the southern cone Neotropical genus. Both species were considered synonyms by Abdala and Lavilla (Peracca, 1897), H. uruguayensis (Vaz-Ferreira & Sierra de Soriano, 1961), H. rupicola Cacciali, Ávila &Bauer, 2007, andH. taragui Cájade, Etchepare, Falcione, Barrasso &Álvarez, 2013; and the horrida group (indicated as fasciata group by Morando et al 2014) which contains H. horrida (Burmeister, 1861), H. underwoodi Kluge, 1964, and H. septentrionalis Cacciali, Morando, Medina, Köhler, Motte & Avila, 2017.…”

Section: Introductionmentioning

confidence: 99%

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Description of a new species of Homonota (Reptilia, Squamata, Phyllodactylidae) from the central region of northern Paraguay

Cacciali¹,

Morando²,

Ávila³

et al. 2018

ZSE

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Homonota is a gecko distributed in central and southern South America with 12 species allocated in three groups. In this work, we performed molecular and morphological analyses of samples of Homonota from the central region of northern Paraguay, comparing the data with those of related species of the group: H. horrida and H. septentrionalis. We found strong molecular evidence (based on 16S, Cyt-b, and PRLR gene sequences) to distinguish this lineage as a new species. Morphological statistical analysis showed that females of the three species are different in metric characters (SVL and TL as the most contributing variables), whereas males are less differentiated. No robust differences were found in meristic characters. The most remarkable trait for the diagnosis of the new species is the presence of well-developed keeled tubercles on the sides of the neck, and lack of a white band (crescent-shaped) in the occipital area, which is present in H. horrida and H. septentrionalis. Nevertheless, in our sample, we found three specimens (one juvenile and two young adults) that exhibit the white occipital band. Thus, this character seems only reliable in adults of the new species. The new species is parapatric to H. septentrionalis, both inhabiting the Dry Chaco of Paraguay.

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A new species of Homonota (Squamata, Gekkonidae) from Paraguay, with a key to the genus

Cited by 7 publications

References 7 publications

Molecular phylogeny of the New World gecko genus Homonota (Squamata: Phyllodactylidae)

Molecular phylogeny of the New World gecko genus Homonota (Squamata: Phyllodactylidae)

Phylogeny and cryptic diversity in geckos (Phyllopezus; Phyllodactylidae; Gekkota) from South America’s open biomes

Description of a new species of Homonota (Reptilia, Squamata, Phyllodactylidae) from the central region of northern Paraguay

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