Abstract:
:Transposable elements have driven genome evolution and plasticity in many ways across a range of organisms. Different types of biotic and abiotic stresses can stimulate the expression or transposition of these mobile elements. Here, we cytogenetically analyzed natural fish populations of the same species living under different environmental conditions to test the influence and organization of transposable elements in their genome. Differential behavior was observed for the markers Rex 1, Rex 3, and Rex 6 in the chromosomes of individuals of the same species but coming from different environments (polluted and unpolluted). An increase in the number of Rex transposable elements in the chromosomes and their influence on the genome of populations living in a polluted environment indicates that they must be under constant adaptive evolution.
journal_name
Cytogenet Genome Resjournal_title
Cytogenetic and genome researchauthors
da Silva FA,Corrêa Guimarães EM,Carvalho NDM,Ferreira AMV,Schneider CH,Carvalho-Zilse GA,Feldberg E,Gross MCdoi
10.1159/000507104subject
Has Abstractpub_date
2020-01-01 00:00:00pages
148-155issue
3eissn
1424-8581issn
1424-859Xpii
000507104journal_volume
160pub_type
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