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Are lungfish living fossils? Observation on the evolution of the opioid/orphanin gene family.

Authors
  • Lee, Jenny
  • Alrubaian, Jasem
  • Dores, Robert M
Type
Published Article
Journal
General and comparative endocrinology
Publication Date
Sep 15, 2006
Volume
148
Issue
3
Pages
306–314
Identifiers
PMID: 16930601
Source
Medline
License
Unknown

Abstract

This minireview considers the possibility that there is a correlation between the slow rate of morphological change and speciation events that has been occurred within the lungfish lineage since the Permian period, and the apparent slow rate of divergence in the amino acid sequences of lungfish opioid precursor sequences. The status of lungfish as "living fossils" is considered.

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