NEW YORK (GenomeWeb) – A pair of studies appearing online today in Nature are uncovering evolutionary patterns for the mammalian Y chromosome and revealing conserved Y chromosome sequences stemming from ancestral, dosage-sensitive genes that have acquired functions outside of the male reproductive system, in some cases.

Although the Y chromosome is notorious for gene loss and erosion, the new research suggests that it has remained relatively stable in recent evolutionary history, following a series of early sequence jettisoning events.

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In Science this week: mtDNA analysis give glimpse into decline of Neanderthals in Europe, and more.

The University of Arizona's Raina Maier writes that an understanding of the Earth's microbiome is needed.

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An Australian study of personalized medicine has run into problems as it recruits patients.

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This online seminar will review case studies demonstrating the clinical utility of CTCs and cfDNA to define and characterize a variety of dynamic genomic changes throughout the course of cancer detection and treatment.