Abstract：
:We have sequenced the genome of the largest freshwater fish species of the world, the arapaima. Analysis of gene family dynamics and signatures of positive selection identified genes involved in the specific adaptations and unique features of this iconic species, in particular it's large size and fast growth. Genome sequences from both sexes combined with RAD-tag analyses from other males and females led to the isolation of male-specific scaffolds and supports an XY sex determination system in arapaima. Whole transcriptome sequencing showed that the product of the gland-like secretory organ on the head surface of males and females may not only provide nutritional fluid for sex-unbiased parental care, but that the organ itself has a more specific function in males, which engage more in parental care.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Du K,Wuertz S,Adolfi M,Kneitz S,Stöck M,Oliveira M,Nóbrega R,Ormanns J,Kloas W,Feron R,Klopp C,Parrinello H,Journot L,He S,Postlethwait J,Meyer A,Guiguen Y,Schartl Mdoi
10.1038/s41598-019-41457-xsubject
Has Abstractpub_date
2019-03-28 00:00:00pages
5293issue
1issn
2045-2322pii
10.1038/s41598-019-41457-xjournal_volume
9pub_type
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