Sex Chromosomes in Vertebrates: XX/XY against ZZ/ZW

Sex-chromosome evolution: recent progress and the influence of male and female heterogamety

(2011) Hans Ellegren   NATURE REVIEWS GENETICS

Convergent evolution of chicken Z and human X chromosomes by expansion and gene acquisition

(2010) Daniel W. Bellott et al.   NATURE

Physical mapping of the elephant X chromosome: conservation of gene order over 105 million years

(2009) Claudia Leticia Rodríguez Delgado et al.   CHROMOSOME RESEARCH

Enrichment of brain-related genes on the mammalian X chromosome is ancient and predates the divergence of synapsid and sauropsid lineages

(2009) Claus Kemkemer et al.   CHROMOSOME RESEARCH

Was Dinosaurian Physiology Inherited by Birds? Reconciling Slow Growth in Archaeopteryx

(2009) Gregory M. Erickson et al.   PLoS One

The emergence of new genes on the young therian X

(2009) Lukasz Potrzebowski et al.   TRENDS IN GENETICS

Sex Chromosomes: Platypus Genome Suggests a Recent Origin for the Human X

(2008) Hans Ellegren   CURRENT BIOLOGY

Bird-like sex chromosomes of platypus imply recent origin of mammal sex chromosomes

(2008) F. Veyrunes et al.   GENOME RESEARCH

Genome analysis of the platypus reveals unique signatures of evolution

(2008) Wesley C. Warren et al.   NATURE