Abstract:
:The accumulation of repetitive DNA sequences on the sex-limited W or Y chromosomes is a well-known process that is likely triggered by the suppression of recombination between the sex chromosomes, which leads to major differences in their sizes and genetic content. Here, we report an analysis conducted on the satellitome of Megaleporinus macrocephalus that focuses specifically on the satDNAs that have been shown to have higher abundances in females and are putatively located on the W chromosome in this species. We characterized 164 satellite families in M. macrocephalus, which is, by far, the most satellite-rich species discovered to date. Subsequently, we mapped 30 satellites, 22 of which were located on the W chromosome, and 14 were shown to exist only on the W chromosome. Finally, we report two simple, quick and reliable methods that can be used for sex identification in M. macrocephalus individuals using fin clips or scales, which could be applicable to future studies conducted in the field of aquaculture.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Utsunomia R,Silva DMZA,Ruiz-Ruano FJ,Goes CAG,Melo S,Ramos LP,Oliveira C,Porto-Foresti F,Foresti F,Hashimoto DTdoi
10.1038/s41598-019-42383-8subject
Has Abstractpub_date
2019-04-10 00:00:00pages
5856issue
1issn
2045-2322pii
10.1038/s41598-019-42383-8journal_volume
9pub_type
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