Like mammals, birds have a very stable sex chromosome system, but it is female, rather than male heterogametic. However, it also seems likely that as more taxa are investigated, additional complexities that are not consistent with existing theory will arise. For each species, the change sex chromosomes in Sutton Coldfield and female reads were pooled and assembled using SOAPdenovo [ 54 ] with a kmer of 31; for some species, marked in S1 Tablea better assembly was obtained using the female data only, and this assembly was used instead ; only scaffolds longer than 1, bps were kept for the coverage analysis.
Nat Methods 71— Vicoso B Bachtrog D. Boy or Girl?
This gene is called the SRY gene. But dosage regulation isn't all there is to genetic sex determination. Search for:. Human genome Human Genome Project List of human genes. Unlike seed plants, where gametophytes are always unisexual, in bryophytes they may produce male, female, or both types of gamete.
Science : — Other authors have recently reviewed this literature [ 1 , 5 ], so we will not dwell on it in detail here. A historical timeline of major theoretical and empirical advances in the study of sex chromosome evolution.