The genome of the arapaima (Arapaima gigas) provides insights into gigantism, fast growth and chromosomal sex determination

Autor(es):Mostrar menos -

Du, Kang ^{[1, 2, 3]} ; Wuertz, Sven ^[4] ; Adolfi, Mateus ^[2] ; Kneitz, Susanne ^[2] ; Stoeck, Matthias ^[4] ; Oliveira, Marcos ^{[2, 5]} ; Nobrega, Rafael ^[5] ; Ormanns, Jenny ^[2] ; Kloas, Werner ^[4] ; Feron, Romain ^[6] ; Klopp, Christophe ^[7] ; Parrinello, Hugues ^[8] ; Journot, Laurent ^[8] ; He, Shunping ^[3] ; Postlethwait, John ^[9] ; Meyer, Axel ^[10] ; Guiguen, Yann ^[6] ; Schartl, Manfred ^{[2, 11, 12, 13]}

Afiliação do(s) autor(es):Mostrar menos -

^[1] Univ Chinese Acad Sci, Beijing 100049 - Peoples R China

^[2] Univ Wurzburg, Physiol Chem, Bioctr, D-97074 Wurzburg - Germany

^[3] Chinese Acad Sci, Key Lab Aquat Biodivers & Conservat, Inst Hydrobiol, Wuhan 430072, Hubei - Peoples R China

^[4] Leibniz Inst Freshwater Ecol & Inland Fisheries, IGB, Muggelseedamm 301, D-12587 Berlin - Germany

^[5] UNESP, Inst Biosci, Dept Morphol, Reprod & Mol Biol Grp, Botucatu, SP - Brazil

^[6] INRA, UR1037 LPGP, Fish Physiol & Genom, F-35042 Rennes - France

^[7] INRA Toulouse, MIAT, CS 52627, F-31326 Castanet Tolosan - France

^[8] Inst Genom Fonct, Montpellier GenomiX MGX, 141 Rue Cardonille, F-34094 Montpellier 05 - France

^[9] Univ Oregon, Inst Neurosci, Eugene, OR 97401 - USA

^[10] Univ Konstanz, Dept Biol, Lehrstuhl Zool & Evolutionsbiol, Univ Str 10, D-78457 Constance - Germany

^[11] Univ Hosp, Comprehens Canc Ctr Mainfranken, D-97080 Wurzburg - Germany

^[12] Texas A&M Univ, Hagler Inst Adv Study, College Stn, TX 77843 - USA

^[13] Texas A&M Univ, Dept Biol, College Stn, TX 77843 - USA

• Tipo de documento: Artigo Científico
• Fonte: SCIENTIFIC REPORTS; v. 9, MAR 28 2019.
• Citações Web of Science: 0

Resumo

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. (AU)

• Processo FAPESP: 14/25313-4 - O papel do AMH na diferenciação sexual e na gametogênese de peixes teleósteos
• Beneficiário: Marcos Antônio de Oliveira
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 14/50602-0 - The role of AMH signaling on medaka sex differentiation and gametogenesis
• Beneficiário: Rafael Henrique Nóbrega
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 15/15631-1 - O papel do AMH na diferenciação sexual e na gametogênese de peixes teleósteos
• Beneficiário: Marcos Antônio de Oliveira
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado
• Processo FAPESP: 14/07620-7 - Banco de espermatogônias tronco em peixes para conservação do genótipo de espécies ameaçadas e de interesse econômico
• Beneficiário: Rafael Henrique Nóbrega
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores