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Bichirs employ similar genetic pathways for limb regeneration as are used in lungfish and salamanders.
- Source :
-
Gene . Mar2019, Vol. 690, p68-74. 7p. - Publication Year :
- 2019
-
Abstract
- Abstract Bichirs are a sister group to sarcopterygian and tetrapods that can fully regenerate their endochondral-skeleton-fins. Histological and transcriptomic comparison approaches have been used to investigate the morphology and genetic basis of bichir lobe-fin regeneration, with strong down-regulation of muscle-related genes and up-regulation of ECM-related genes and developmental genes being observed. Bichir limb regeneration involves similar cellular processes to those employed by lungfish and salamander, with MARCKS-like protein (MLP) that is known to be a putative regeneration-initiating molecule in salamander, also up-regulated in the early stages of bichir lobe-fin regeneration. These gene expression results suggest that limb regeneration pathways in these amphibians have a common ancestral inheritance, consistent with evolution from endochondral-skeleton-fin structures to endochondral-skeleton-limb structures of vertebrates. Highlights • Gave a detailed description of the bichirs' lobe-fin regeneration process and compared them to lungfish and salamander. • Expression analysis revealed great similarities for lobe-fin/limb regeneration between bichirs, lungfish and salamanders. • MLP that is known to be a putative regeneration-initiating molecule in salamander, also was up-regulated in bichirs. • Results suggest that limb regeneration pathways in these amphibians have a common ancestral inheritance. [ABSTRACT FROM AUTHOR]
- Subjects :
- *LIMB regeneration
*LUNGFISHES
*SALAMANDERS
*GENE expression
*TRANSCRIPTOMES
Subjects
Details
- Language :
- English
- ISSN :
- 03781119
- Volume :
- 690
- Database :
- Academic Search Index
- Journal :
- Gene
- Publication Type :
- Academic Journal
- Accession number :
- 134378218
- Full Text :
- https://doi.org/10.1016/j.gene.2018.12.031