Sex Chromosome Evolution and Genomic Divergence in the Fish Hoplias malabaricus (Characiformes, Erythrinidae)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985904%3A_____%2F18%3A00489483" target="_blank" >RIV/67985904:_____/18:00489483 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.3389/fgene.2018.00071" target="_blank" >http://dx.doi.org/10.3389/fgene.2018.00071</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3389/fgene.2018.00071" target="_blank" >10.3389/fgene.2018.00071</a>
Alternative languages
Result language
angličtina
Original language name
Sex Chromosome Evolution and Genomic Divergence in the Fish Hoplias malabaricus (Characiformes, Erythrinidae)
Original language description
The Erythrinidae family (Teleostei: Characiformes) is a small Neotropical fish group with a wide distribution throughout South America, where Hoplias malabaricus corresponds to the most widespread and cytogenetically studied taxon. This species possesses significant genetic variation, as well as huge karyotype diversity among populations, as reflected by its seven major karyotype forms (i.e., karyomorphs A-G) identified up to now. Although morphological differences in their bodies are not outstanding, H. malabaricus karyomorphs are easily identified by differences in 2n, morphology and size of chromosomes, as well as by distinct evolutionary steps of sex chromosomes development. Here, we performed comparative genomic hybridization (CGH) to analyse both the intra-and inter-genomic status in terms of repetitive DNA divergence among all but one (E) H. malabaricus karyomorphs. Our results indicated that they have close relationships, but with evolutionary divergences among their genomes, yielding a range of non-overlapping karyomorph-specific signals. Besides, male-specific regions were uncovered on the sex chromosomes, confirming their differential evolutionary trajectories. In conclusion, the hypothesis that H. malabaricus karyomorphs are result of speciation events was strengthened.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10603 - Genetics and heredity (medical genetics to be 3)
Result continuities
Project
<a href="/en/project/EF15_003%2F0000460" target="_blank" >EF15_003/0000460: EXCELLENCE in Molecular Aspects of the early development of vertebrates</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Frontiers in genetics
ISSN
1664-8021
e-ISSN
—
Volume of the periodical
9
Issue of the periodical within the volume
1
Country of publishing house
CH - SWITZERLAND
Number of pages
12
Pages from-to
—
UT code for WoS article
000426549500001
EID of the result in the Scopus database
2-s2.0-85043370521