Table 1.

Dosage-sensitivity of human X–Y pair genes across therian mammalian lineages

X-gene familyXi expressionY-gene familySurvival fractionBranch length (MY)
DDX3XYesDDX3Y1.00663
KDM6AYesUTY1.00663
ZFXYesZFY1.00663
NLGN4XYesNLGN4Y1.00140
USP9XYesUSP9Y0.990656
PRKXYesPRKY0.85174
EIF1AXYesEIF1AY0.833552
KDM5CYesKDM5D0.831687
TXLNGYesTXLNGY0.664440
RPS4XYesRPS4Y10.355343
SOX3NoSRY1.000967
RBMXNoRBMY0.943912
HSFX1NoHSFY10.834806
TSPYL2NoTSPY10.776642
AMELXNoAMELY0.685454
TBL1XNoTBL1Y0.64490
TMSB4XNoTMSB4Y0.465308

[i] Xi expression is indicated for X-homologs, and survival fraction and branch length are calculated for the corresponding Y-homologs. Genes are sorted first by Xi expression, then by Y-homolog survival fraction, and finally by Y-homolog branch length.