Phylogenetic position of two species of the Liolaemus elongatus-kriegi Complex and a new northern limit for L. buergeri (Squamata: Liolaemidae)

Troncoso-Palacios, Jaime; Marambio-Alfaro, Yery; Ramírez-Álvarez, Diego; Saavedra, Jorge Valdés

doi:10.11606/issn.2316-9079.v18i1p115-121

Cited by 3 publications

(2 citation statements)

References 18 publications

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“…In fact, all non‐genital traits in the L. elongatus group (with the exception of radius‐ulna length) presented low phylogenetic signal values, this indicated that could be under selective forces. The low divergence in genital morphology in the L. elongatus group could explain the hybridization processes between sympatric species, as was hypothesized by Troncoso‐Palacios et al (2019). Although is important to mention that in general L. elongatus group exhibits highly evolutionary patterns (Olave et al ., 2020).…”

Section: Discussionmentioning

confidence: 63%

Male genitalia's evolutionary rate is higher than those of body traits: the case of two Liolaemus lizards' group

et al. 2020

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Different studies suggest that reproductive characters evolve faster than non‐reproductive characters. Males in the order Squamata have paired copulatory organs called hemipenes, with high morphological diversity, including differences in size, shape, and ornamentation. Some studies in the species‐rich lizard genus, Anolis suggest that genital traits evolve faster than the rest of the body. However, these studies were made considering only a few traits, across a wide phylogeny, without considering species relatedness, which may inflate differences in evolutionary rates. Here, we study two phylogenetic distantly related lizard groups, which differ in the number of species, but have similar divergence times. We evaluate as follows: (1) evolutionary rate, models of evolution and phylogenetic signal among the different genital and non‐genital traits; (2) which kind of traits (genital and non‐genital) are divergent across sister species and (3) whether the species‐rich group shows a faster rate of trait change. We studied 24 Liolaemus lizard species, belonging to two monophyletic groups that differ in species number: L. elongatus' clade, which has more species than L. lineomaculatus' clade. We studied 20 different traits (9 genital and 11 non‐genital) and calculated their phylogenetic signal, evolutionary rate of change and models that best explain the evolutionary change. Our results show that: (1) in general, genital traits evolve faster than non‐genital ones in both groups, and both phylogenetic signal and best evolutionary model vary depending on the trait. (2) Genital traits diverged more among sister species within the L. lineomaculatus group, but within the L. elongatus group, both sets of traits show similar degrees of divergence. Finally, (3) the species‐rich group (L. elongatus), has the highest genital evolutionary rate but also the highest non‐genital evolutionary rate.

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Section: Discussionmentioning

confidence: 63%

Male genitalia's evolutionary rate is higher than those of body traits: the case of two Liolaemus lizards' group

et al. 2020

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“…Given that several lineages have been proposed as candidate species of the L. elongatus group through molecular phylogenetic studies (Morando et al, 2003;Medina et al, 2017;Troncoso-Palacios et al, 2018) whose taxonomic status remains undetermined and that several additional species of the group have been recently described (Troncoso-Palacios et al, 2018;Ruiz et al, 2019a;, this study), it is probable that the described diversity of this group of lizards will continue to increase in the coming years. For example, as was noted by Troncoso-Palacios et al (2019), it is needed a deeper study to clarify the taxonomic status of the population of lizards that occur in Altos de Lircay, Maule Region, which has been listed with several names: L. monticola Müller &Hellmich, 1932, L. carlosgarini, L. sp. 1 andL.…”

Section: Discussionmentioning

confidence: 99%

DESCRIPTION OF A NEW SPECIES OF THE Liolaemus elongatus GROUP FROM THE ANDES CENTRAL CHILE (IGUANIA: LIOLAEMIDAE)

Troncoso-Palacios¹,

Ramírez-Álvarez²

2021

Rev Latin Herp

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Resumen.- Los lagartos Liolaemus habitan en el sur de Sudamérica, siendo uno de los géneros de vertebrados terrestres más diversos del mundo. Dentro de este género, las especies del grupo de L. elongatus habitan en la cordillera andina de Chile y de Argentina, y en los afloramientos rocosos de la Patagonia Argentina. Aquí, nosotros revisamos la identidad taxonómica de una población de los Andes de la Región de O`Higgins, Chile, previamente confundida con L. cristiani. Nosotros encontramos que este taxón no es asignable a ninguno de los Liolaemus actualmente descrito y proveemos una descripción para este. Preliminarmente nosotros incluimos a esta nueva especie en el grupo de L. elongatus, siendo una de las especies del grupo distribuidas más al norte.

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Naming the Diversity: Taxonomy of Current Species of Patagonian Lizards

Ávila

Marín

Palacios

et al. 2020

Natural and Social Sciences of Patagonia

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Phylogenetic position of two species of the Liolaemus elongatus-kriegi Complex and a new northern limit for L. buergeri (Squamata: Liolaemidae)

Cited by 3 publications

References 18 publications

Male genitalia's evolutionary rate is higher than those of body traits: the case of two Liolaemus lizards' group

Male genitalia's evolutionary rate is higher than those of body traits: the case of two Liolaemus lizards' group

DESCRIPTION OF A NEW SPECIES OF THE Liolaemus elongatus GROUP FROM THE ANDES CENTRAL CHILE (IGUANIA: LIOLAEMIDAE)

Naming the Diversity: Taxonomy of Current Species of Patagonian Lizards

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