Nat. Genet. 38, 158–167 (2006).

The following paper, which was published during the revision process of this manuscript, should have appeared in the reference list and should have been cited as below. The authors wish to apologize to the readers and the original data producers for this mistake and inconvenience.

51. Hughes, J.F. et al. Conservation of Y-linked genes during human evolution revealed by comparative sequencing. Nature 437, 100–105 (2005).

On page 160, in the first full paragraph in the right-hand column, the first sentence should read, “As the PTRY sequence analyzed in this study originated from a single male animal, Gon10 (PTB library), we compared intraspecies nucleotide diversity using the sequences in the public database51 (Supplementary Table 5 online).”

On page 164, in the first full paragraph in the right-hand column, the third sentence should read, “To estimate the TRMCA, the divergence rates of the two pairs of chimpanzee individuals51 were averaged ((0.0422 + 0.0343)/2 = 0.0383).”

On page 165, in the first full paragraph in the left-hand column, the second sentence should read, “In the case of PTR22, we obtained diversity rates of 0.172 ± 0.010% (CHORI-251) and 0.149 ± 0.003% (RP-43) between the same two chimpanzee individuals51—substantially higher values than for PTRY.”

In addition, the following as-yet-unpublished BACs, listed in Supplementary Table 5, were generated and deposited in GenBank by R.K. Wilson (Washington University School of Medicine) and D.C. Page (Whitehead Institute): AC142320, AC144378, AC145769, AC145782, AC146011, AC146175, AC146245, AC146268, AC147117, AC147148, AC147343, AC147657, AC147670 and AC151848.

Finally, in line 7 of the Acknowledgments, T.-n. Zoo (Osaka, Japan) should have been listed as Osaka Municipal Tennoji Zoo (Osaka, Japan).

The errors have been corrected in the HTML and PDF versions of the article. This correction has been appended to the PDF version.