http://www.cnr.it/ontology/cnr/individuo/prodotto/ID8883

Biogeography and adaptation of Notothenioid fish: hemoglobin function and globin-gene evolution (Articolo in rivista)

Type

Prodotto della ricerca (Classe)
Articolo in rivista (Classe)

Label

Biogeography and adaptation of Notothenioid fish: hemoglobin function and globin-gene evolution (Articolo in rivista) (literal)

Anno

2007-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

10.1016/j.gene.2007.02.047 (literal)

Alternative label

Di Prisco G.; Eastman J.T.; Giordano D.; Parisi E.; Verde C. (2007)
Biogeography and adaptation of Notothenioid fish: hemoglobin function and globin-gene evolution
in Gene (Amst.)
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Di Prisco G.; Eastman J.T.; Giordano D.; Parisi E.; Verde C. (literal)

Pagina inizio

143 (literal)

Pagina fine

155 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni

Conference: 14th International Conference on Dioxygen Binding and Sensing Proteins Location: Naples, ITALY Date: SEP 03-07, 2006. Selected and revised paper (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

398 (literal)

Rivista

Gene (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

1-2 (literal)

Note

ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

Institute of Protein Biochemistry, CNR, Via Pietro Castellino 111, I-80131 Naples, Italy Department of Biomedical Sciences, Ohio University, Athens, Ohio 45702, USA (literal)

Titolo

Biogeography and adaptation of Notothenioid fish: hemoglobin function and globin-gene evolution (literal)

Abstract

The recognition of the important role of the polar habitats in global climate changes has awakened great interest in the evolutionary biology of polar organisms. They are exposed to strong environmental constraints, and it is important to understand how they have adapted to cope with these challenges and to what extent adaptations may be upset by current climate changes. We present an introductory overview of the evolution of the Antarctic fish fauna with emphasis on the dominant perciform sub-order Notothenioidei, as well as some specific comments on the biogeography of the three phyletically basal notothenioid families. The wealth of information on the ecology and biodiversity of the species inhabiting high-Antarctic and sub-Antarctic regions provides a necessary framework for better understanding the origin, evolution and adaptation of this unique group of fish. Notothenioidei offer opportunities for identification of the biochemical characters or the physiological traits responsible for thermal adaptation. The availability of phylogenetically related taxa in a wide range of latitudes has allowed to look into the molecular bases of environmentally driven phenotypic gain and loss of function. In the process of cold adaptation, the evolutionary trend of notothenioids has produced unique specialisations, including modification of hematological characteristics, e.g. decreased amounts and multiplicity of hemoglobins. The Antarctic family Channichthyidae (the notothenioid crown group) is devoid of hemoglobin. This loss is related to a single deletional event removing all globin genes with the exception of the inactive 3 end of adult ¿-globin. In reviewing hemoglobin structure, function and phylogeny, the evolution of the fish Root effect is analysed in detail. Adaptation of the oxygen-transport system in notothenioids seems to be based on evolutionary changes involving levels of biological organisation higher than the structure of hemoglobin. (literal)

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