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  • 1
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    Morphology and DNA sequence data reveal the presence of Globodera ellingtonae in the Andean region (2014)
    In:  Contributions to Zoology (1875-9866) vol.83 (2014) nr.4 p.227
    Details
    Publication Date: 2014-11-05
    Description: Potato cyst nematodes, G. rostochiensis and G. pallida, are the most economically important nematode pests of potatoes worldwide and are subject to strict quarantine regulations in many countries. Globodera ellingtonae was recently described from Oregon (USA), with its host-plant in the field being still unknown. Roots of Andean potatoes from the North of Argentina have been found attacked by this nematode, providing further evidence that this is a potato cyst nematode species, along with G. pallida and G. rostochiensis. New information about morphological, biological and molecular aspects of G. ellingtonae is provided for diagnostic purposes. The Argentine population showed morphological differences from specimens from Oregon; therefore, new diagnostic characters were defined to differentiate G. ellingtonae from its closest species. The Hsp90 gene was shown to be a good diagnostic marker for discriminating the three PCN species. The importance of the detection of G. ellingtonae on potatoes in the Andean region is not restricted to a regional level, since the nematode is also present in USA. This species can pose a serious problem to potato crop, especially when infected tubers are used as seeds. The distribution in the South American Andes is likely to extend the currently known distribution areas because cysts are passively transported. There is a need to evaluate the possible damage it may cause to potato crops. Morphological and molecular diagnoses conducted in this work provide fundamental information for the protection of potato crops not only in those countries in the Americas where the species has already been detected, but also worldwide.
    Keywords: Andean potato ; Argentina ; diagnosis ; Hsp90 gene ; morphology ; potato cyst nematode ; 42.76 ; 42.64
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 2
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    La plataforma submarina y la costa atlántica Argentina durante los últimos 22.000 años (2021)
    In:  http://aquaticcommons.org/id/eprint/16697 | 9602 | 2016-05-04 14:28:48 | 16697 | Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), Mar del Plata, Argentina
    Details
    Publication Date: 2021-07-08
    Description: La glaciaciones ocurridas en la región expusieron en diferente grado la actual plataforma continental Argentina (océano Atlántico sudoccidental). Este trabajo de divulgación científica da a conocer un modelo de evolución paleogeográfica de las costas de la Pampa y la Patagonia, y brinda la posibilidad de localizar temporalmente la formación de los principales rasgos costeros del extremo sur de América del sur. Se incluyen además otras lecturas sugeridas relacionadas al tema.
    Description: Reprinted as: pp.11-17 in, Ciencia del Mar. Volumen temático 1, 12/2014; Asociación Ciencia Hoy. ISBN: 978-987-45584-0-4 (Special issue dedicated to 'Marine Sciences: 1988-2014')
    Keywords: Biology ; Ecology ; Oceanography ; PSW ; Argentina ; marine environment ; Continental shelves ; shelf geology ; glaciation ; palaeogeography ; sea level changes ; models
    Repository Name: AquaDocs
    Type: article
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    Format: 50-56
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  • 3
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    Morphology and DNA sequence data reveal the presence of Globodera ellingtonae in the Andean region (2014)
    In:  Contributions to Zoology vol. 83 no. 4, pp. 227-243
    Details
    Publication Date: 2024-01-12
    Description: Potato cyst nematodes, G. rostochiensis and G. pallida, are the most economically important nematode pests of potatoes worldwide and are subject to strict quarantine regulations in many countries. Globodera ellingtonae was recently described from Oregon (USA), with its host-plant in the field being still unknown. Roots of Andean potatoes from the North of Argentina have been found attacked by this nematode, providing further evidence that this is a potato cyst nematode species, along with G. pallida and G. rostochiensis. New information about morphological, biological and molecular aspects of G. ellingtonae is provided for diagnostic purposes. The Argentine population showed morphological differences from specimens from Oregon; therefore, new diagnostic characters were defined to differentiate G. ellingtonae from its closest species. The Hsp90 gene was shown to be a good diagnostic marker for discriminating the three PCN species. The importance of the detection of G. ellingtonae on potatoes in the Andean region is not restricted to a regional level, since the nematode is also present in USA. This species can pose a serious problem to potato crop, especially when infected tubers are used as seeds. The distribution in the South American Andes is likely to extend the currently known distribution areas because cysts are passively transported. There is a need to evaluate the possible damage it may cause to potato crops. Morphological and molecular diagnoses conducted in this work provide fundamental information for the protection of potato crops not only in those countries in the Americas where the species has already been detected, but also worldwide.
    Keywords: Andean potato ; Argentina ; diagnosis ; Hsp90 gene ; morphology ; potato cyst nematode
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 4
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    A complete skull from Dmanisi, Georgia, and the evolutionary biology of early Homo (2013)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2013-10-19
    Description: The site of Dmanisi, Georgia, has yielded an impressive sample of hominid cranial and postcranial remains, documenting the presence of Homo outside Africa around 1.8 million years ago. Here we report on a new cranium from Dmanisi (D4500) that, together with its mandible (D2600), represents the world's first completely preserved adult hominid skull from the early Pleistocene. D4500/D2600 combines a small braincase (546 cubic centimeters) with a large prognathic face and exhibits close morphological affinities with the earliest known Homo fossils from Africa. The Dmanisi sample, which now comprises five crania, provides direct evidence for wide morphological variation within and among early Homo paleodemes. This implies the existence of a single evolving lineage of early Homo, with phylogeographic continuity across continents.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lordkipanidze, David -- Ponce de Leon, Marcia S -- Margvelashvili, Ann -- Rak, Yoel -- Rightmire, G Philip -- Vekua, Abesalom -- Zollikofer, Christoph P E -- New York, N.Y. -- Science. 2013 Oct 18;342(6156):326-31. doi: 10.1126/science.1238484.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Georgian National Museum, 3 Purtseladze Street, 0105 Tbilisi, Georgia.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24136960" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Brain/anatomy & histology ; Dentition ; Face/*anatomy & histology ; *Fossils ; Georgia (Republic) ; Hominidae/*anatomy & histology/growth & development ; Humans ; Organ Size ; Phylogeography ; Skull/*anatomy & histology/growth & development ; Skull Base/anatomy & histology/growth & development ; Temporal Bone/anatomy & histology/growth & development
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 5
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    Response to comment on "A complete skull from Dmanisi, Georgia, and the evolutionary biology of early Homo" (2014)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 2014-04-26
    Description: Schwartz et al. hold that variation among the Dmanisi skulls reflects taxic diversity. The morphological observations to support their hypothesis, however, are partly incorrect, and not calibrated against intraspecific variation in living taxa. After proper adjustment, Schwartz et al.'s data are fully compatible with the hypothesis of a single paleodeme of early Homo at Dmanisi.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zollikofer, Christoph P E -- Ponce de Leon, Marcia S -- Margvelashvili, Ann -- Rightmire, G Philip -- Lordkipanidze, David -- New York, N.Y. -- Science. 2014 Apr 25;344(6182):360. doi: 10.1126/science.1250081.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Anthropological Institute and Museum, University of Zurich, Zurich, Switzerland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24763573" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Biological Evolution ; Face/*anatomy & histology ; *Fossils ; Hominidae/*anatomy & histology ; Humans ; Skull/*anatomy & histology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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