10 research outputs found

    Figure 3 in Long forsaken species diversity in the Middle American lizard Holcosus undulatus (Teiidae)

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    Figure 3. Geographical distribution of the six major, significantly supported haplotype clades identified in the Bayesian and ML phylogenetic analyses of the mitochondrial genes.Published as part of <i>Meza-Lázaro, Rubi Nelsi & Oca, Adrián Nieto-Montes De, 2015, Long forsaken species diversity in the Middle American lizard Holcosus undulatus (Teiidae), pp. 189-210 in Zoological Journal of the Linnean Society 175 (1)</i> on page 200, DOI: 10.1111/zoj.12264, <a href="http://zenodo.org/record/10107779">http://zenodo.org/record/10107779</a&gt

    Figure 4 in Long forsaken species diversity in the Middle American lizard Holcosus undulatus (Teiidae)

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    Figure 4. Bayesian MCC species tree of H. undulatus inferred by simultaneous gene tree and species tree analysis of the mitochondrial and nuclear genes with *BEAST. Numbers above the branches are posterior probabilities.Published as part of <i>Meza-Lázaro, Rubi Nelsi & Oca, Adrián Nieto-Montes De, 2015, Long forsaken species diversity in the Middle American lizard Holcosus undulatus (Teiidae), pp. 189-210 in Zoological Journal of the Linnean Society 175 (1)</i> on page 202, DOI: 10.1111/zoj.12264, <a href="http://zenodo.org/record/10107779">http://zenodo.org/record/10107779</a&gt

    Figure 2 in Long forsaken species diversity in the Middle American lizard Holcosus undulatus (Teiidae)

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    Figure 2. Bayesian MCC tree of H. undulatus based on a partitioned analysis of the mitochondrial dataset. Outgroups are not shown. Numbers next to branches indicate posterior probability/bootstrap support values.Published as part of <i>Meza-Lázaro, Rubi Nelsi & Oca, Adrián Nieto-Montes De, 2015, Long forsaken species diversity in the Middle American lizard Holcosus undulatus (Teiidae), pp. 189-210 in Zoological Journal of the Linnean Society 175 (1)</i> on page 199, DOI: 10.1111/zoj.12264, <a href="http://zenodo.org/record/10107779">http://zenodo.org/record/10107779</a&gt

    Figure 1 in Long forsaken species diversity in the Middle American lizard Holcosus undulatus (Teiidae)

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    Figure 1. Geographical distribution of the formerly recognized subspecies of H. undulatus in Mexico (reproduced from Smith & Laufe, 1946); and sampling localities for H. undulatus. Numbers at dots refer to specific sample numbers of H. undulatus specimens used in this study. Locality data for these specimens are given in Table S1.Published as part of <i>Meza-Lázaro, Rubi Nelsi & Oca, Adrián Nieto-Montes De, 2015, Long forsaken species diversity in the Middle American lizard Holcosus undulatus (Teiidae), pp. 189-210 in Zoological Journal of the Linnean Society 175 (1)</i> on page 193, DOI: 10.1111/zoj.12264, <a href="http://zenodo.org/record/10107779">http://zenodo.org/record/10107779</a&gt

    Long forsaken species diversity in the Middle American lizard Holcosus undulatus (Teiidae)

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    Meza-Lázaro, Rubi Nelsi, Oca, Adrián Nieto-Montes De (2015): Long forsaken species diversity in the Middle American lizard Holcosus undulatus (Teiidae). Zoological Journal of the Linnean Society 175 (1): 189-210, DOI: 10.1111/zoj.12264, URL: http://dx.doi.org/10.1111/zoj.1226

    Sergey gen. n., a new doryctine genus from temperate forests of Mexico and Cuba (Hymenoptera, Braconidae)

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    The new doryctine genus Sergey gen. n. is described with four new species (S. cubaensis Zaldívar-Riverón & Martínez, sp. n., S. coahuilensis Zaldívar-Riverón & Martínez, sp. n., S. tzeltal Martínez & Zalídivar-Riverón, sp. n., S. tzotzil Martínez & Zalídivar-Riverón, sp. n.) from temperate forests of Mexico and Cuba. Similar to many other doryctine taxa, the new genus has a considerably elongated, petiolate basal sternal plate of the first metasomal tergite, although it can be distinguished from these by having the mesoscutum sharply declivous anteriorly with sharp anterolateral edges. The described species have been characterised molecularly based on two mitochondrial (COI, cyt b) and one nuclear (28S) gene markers. Based on the mitochondrial gene genealogies reconstructed, the evidence suggests the existence of incomplete lineage sorting or hybridization in the populations from Chiapas and Oaxaca assigned to S. tzeltal sp. n.Fil: Martinez, Juan Jose. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Lázaro, Rubi Nelsi Meza. Universidad Nacional Autónoma de México; MéxicoFil: Pedraza Lara, Carlos. Universidad Nacional Autónoma de México; MéxicoFil: Zaldivar Riverón, Alejandro. Universidad Nacional Autónoma de México; Méxic

    Egg retention and intrauterine embryonic development in Sceloporus aeneus (Reptilia: Phrynosomatidae): implications for the evolution of viviparity Retención de huevos y avance embrionario intrauterino en Sceloporus aeneus (Reptilia: Phrynosomatidae): implicaciones para la evolución de la viviparidad

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    Egg retention (ER) and intrauterine embryonic development (IED) have been considered intermediate steps in the evolution from oviparity to viviparity. Sceloporus aeneus is an oviparous lizard that is closely related to the viviparous species (Sceloporus bicanthalis). The present study addresses the following 2 questions: 1) Are intermediate stages of egg retention (ER and IED) present in populations of Sceloporus aeneus? and 2) Are ER and/or IED explained by elevation, precipitation or phylogenetic effects? Results indicate that in S. aeneus, ER differs among populations. ER was negatively related to altitude and pluvial precipitation, whereas average environmental temperature had no effect on ER or IER. In contrast to previous observations of oviparous species related to viviparous species, populations of S. aeneus with advanced IED are associated with environmental factors such as low elevation and aridity instead of high elevation and cold climate, whereas the comparative analysis shows that there are no significative evolutionary changes throughout the phylogeny, which means that the altitude has no effect on the transition to the evolution of viviparity in S. aeneus-S bicanthalis.La retención de huevos (ER) y el desarrollo embrionario intrauterino (IED) han sido considerados pasos intermedios hacia la viviparidad. Sceloporus aeneus es un lacertilio ovíparo estrechamente relacionado a una especie vivípara (Sceloporus bicanthalis). El presente estudio derivó de las preguntas: ¿El ER y el IED presentes en las poblaciones de S. aeneus son estadios intermedios a la viviparidad? ¿ER y/o IED son explicados por la temperatura, altitud, precipitación pluvial o son un efecto filogenético? En S. aeneus, el ER y el IED fueron diferentes entre poblaciones. Los resultados indicaron que la ER se relacionó negativamente con la altitud y la precipitación pluvial, mientras que no se encontró efecto con la temperatura ambiental. En contraste con observaciones previas en especies emparentadas con las especies vivíparas, los resultados de la presente investigación indican que en las poblaciones de S. aeneus estudiadas, el mayor avance en el IED lo presentaron los organismos que habitan en baja elevación y áreas secas en lugar de alta elevación y climas fríos. Por otro lado, el análisis comparativo mostró que no existen cambios evolutivos significativos en los valores a lo largo de la filogenia, lo que significa que la altitud no tiene un efecto significativo en la transición hacia la viviparidad en Sceloporus aeneus-S. bicanthalis
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