A cluster of four globin genes from the Antarctic fish Notothenia coriiceps
The blood of Channichthyidae, the most phyletically derived notothenioid family, is devoid of haemoglobin (Hb). Three of the 15 channichthyid species retain inactive genomic remnants of the major adult notothenioid α‐globin gene, but have lost the gene encoding adult β‐globin. In an attempt to under...
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crwiley:10.1111/j.1095-8649.2000.tb02243.x 2024-06-02T07:58:29+00:00 A cluster of four globin genes from the Antarctic fish Notothenia coriiceps Cocca, E. Detrich, H. W. Parker, S. K. Prisco, G. di 2000 http://dx.doi.org/10.1111/j.1095-8649.2000.tb02243.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.2000.tb02243.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.2000.tb02243.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 57, issue sA, page 33-50 ISSN 0022-1112 1095-8649 journal-article 2000 crwiley https://doi.org/10.1111/j.1095-8649.2000.tb02243.x 2024-05-03T10:48:55Z The blood of Channichthyidae, the most phyletically derived notothenioid family, is devoid of haemoglobin (Hb). Three of the 15 channichthyid species retain inactive genomic remnants of the major adult notothenioid α‐globin gene, but have lost the gene encoding adult β‐globin. In an attempt to understand the mutational events leading to loss of globin expression in channichthyids, the organisation of globin genes in red‐blooded notothenioid species was examined. Globin genes in fish are often organised as α/β pairs linked in 5’to 5’orientation, and the major adult α‐ and β‐globins of the Antarctic yellowbelly rockcod Notothenia coriiceps have this organisation. A second globin gene cluster from N. coriiceps contains two sets of linked α‐ and β‐globin genes but the deduced amino acid sequences of the globins differ from those of the adult globins. To test the hypothesis that the globins may be expressed at different stages of ontogenesis, total RNA from head kidney and erythrocytes of adult and juvenile N. coriiceps were probed for transcripts corresponding to the four globin genes. The data suggest that the globin genes of this cluster are transcribed maximally in the early phase of development. Southern analysis of the genomes of red‐ and white‐blooded notothenioids revealed that the genes of this complex are absent in Hb‐less icefish. Article in Journal/Newspaper Antarc* Antarctic Icefish Wiley Online Library Antarctic The Antarctic Journal of Fish Biology 57 sa 33 50 |
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Wiley Online Library |
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English |
description |
The blood of Channichthyidae, the most phyletically derived notothenioid family, is devoid of haemoglobin (Hb). Three of the 15 channichthyid species retain inactive genomic remnants of the major adult notothenioid α‐globin gene, but have lost the gene encoding adult β‐globin. In an attempt to understand the mutational events leading to loss of globin expression in channichthyids, the organisation of globin genes in red‐blooded notothenioid species was examined. Globin genes in fish are often organised as α/β pairs linked in 5’to 5’orientation, and the major adult α‐ and β‐globins of the Antarctic yellowbelly rockcod Notothenia coriiceps have this organisation. A second globin gene cluster from N. coriiceps contains two sets of linked α‐ and β‐globin genes but the deduced amino acid sequences of the globins differ from those of the adult globins. To test the hypothesis that the globins may be expressed at different stages of ontogenesis, total RNA from head kidney and erythrocytes of adult and juvenile N. coriiceps were probed for transcripts corresponding to the four globin genes. The data suggest that the globin genes of this cluster are transcribed maximally in the early phase of development. Southern analysis of the genomes of red‐ and white‐blooded notothenioids revealed that the genes of this complex are absent in Hb‐less icefish. |
format |
Article in Journal/Newspaper |
author |
Cocca, E. Detrich, H. W. Parker, S. K. Prisco, G. di |
spellingShingle |
Cocca, E. Detrich, H. W. Parker, S. K. Prisco, G. di A cluster of four globin genes from the Antarctic fish Notothenia coriiceps |
author_facet |
Cocca, E. Detrich, H. W. Parker, S. K. Prisco, G. di |
author_sort |
Cocca, E. |
title |
A cluster of four globin genes from the Antarctic fish Notothenia coriiceps |
title_short |
A cluster of four globin genes from the Antarctic fish Notothenia coriiceps |
title_full |
A cluster of four globin genes from the Antarctic fish Notothenia coriiceps |
title_fullStr |
A cluster of four globin genes from the Antarctic fish Notothenia coriiceps |
title_full_unstemmed |
A cluster of four globin genes from the Antarctic fish Notothenia coriiceps |
title_sort |
cluster of four globin genes from the antarctic fish notothenia coriiceps |
publisher |
Wiley |
publishDate |
2000 |
url |
http://dx.doi.org/10.1111/j.1095-8649.2000.tb02243.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.2000.tb02243.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.2000.tb02243.x |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Icefish |
genre_facet |
Antarc* Antarctic Icefish |
op_source |
Journal of Fish Biology volume 57, issue sA, page 33-50 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1095-8649.2000.tb02243.x |
container_title |
Journal of Fish Biology |
container_volume |
57 |
container_issue |
sa |
container_start_page |
33 |
op_container_end_page |
50 |
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1800741842608717824 |