Implications of monotreme and marsupial chromosome evolution on sex determination and differentiation

Highlights • Monotreme and marsupial genomes differ markedly in how they are packaged. • Monotremes have a complicated sex chromosome system consisting of multiple X and Y chromosomes. • Anti-mullerian hormone ( AMHY ) is the candidate sex determining gene in monotremes. • The ancestral marsupial ha...

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Bibliographic Details
Published in:General and comparative endocrinology 2017-04, Vol.244, p.130-138
Main Author: Deakin, Janine E
Format: Article
Language:English
Subjects:
Animals
Biological Evolution
Endocrinology & Metabolism
Female
Genome evolution
Intersex
Karyotype
Male
Marsupialia - genetics
Marsupialia - physiology
Monotremata - genetics
Monotremata - physiology
Sex chromosomes
Sex Chromosomes - genetics
Sex determination
Sex Determination Analysis
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Summary:Highlights • Monotreme and marsupial genomes differ markedly in how they are packaged. • Monotremes have a complicated sex chromosome system consisting of multiple X and Y chromosomes. • Anti-mullerian hormone ( AMHY ) is the candidate sex determining gene in monotremes. • The ancestral marsupial had a 2 n = 14 karyotype. • Development of a scrotum or pouch in marsupials is dependent on the X chromosome.
ISSN:0016-6480
1095-6840
DOI:10.1016/j.ygcen.2015.09.029