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Science 7 January 2005:
Vol. 307. no. 5706, pp. 50 - 51
DOI: 10.1126/science.1107295
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Perspectives

GENOMICS:
Recycling the Y Chromosome

Jennifer A. Marshall Graves

The Y chromosome is a rather peculiar component of the genome: It is diminutive in size, and contains few genes but many repetitive DNA sequences. As Graves points out in her Perspective, the meager size of the Y chromosome belies its fascinating evolutionary history. A comparison of the Y chromosomes of two fruit fly species (Carvalho and Clark) shows that Y chromosomes may have completely different origins, and may even be recycled onto non-sex chromosomes (autosomes).

The author is in the Research School of Biological Sciences, Australian National University, Canberra, ACT 2601, Australia. E-mail: jenny.graves@anu.edu.au

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Sex Determination and Gonadal Development in Mammals.
D. Wilhelm, S. Palmer, and P. Koopman (2007)
Physiol Rev 87, 1-28
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