Retroposon insertions and the chronology of avian sex chromosome evolution.
Retroposon insertions and the chronology of avian sex chromosome evolution.
复制标题
逆转录子插入和鸟类性染色体进化的年表
DOI:
10.1093/molbev/msr147
复制
发表时间:
2011
影响因子:
10.7
通讯作者:
Schmitz J
中科院分区:
文献类型:
--
作者:
Kriegs JO;Brosius J;Schmitz J
The vast majority of extant birds possess highly differentiated Z and W sex chromosomes. Nucleotide sequence data from gametologs (homologs on opposite sex chromosomes) suggest that this divergence occurred throughout early bird evolution via stepwise cessation of recombination between identical sex chromosomal regions. Here, we investigated avian sex chromosome differentiation from a novel perspective, using retroposon insertions and random insertions/deletions for the reconstruction of gametologous gene trees. Our data confirm that theCHD1Z/CHD1Wgenes differentiated in the ancestor of the neognaths, whereas theNIPBLZ/NIPBLWgenes diverged in the neoavian ancestor and independently within Galloanserae. The divergence of theATP5A1Z/ATP5A1Wgenes in galloanserans occurred independently in the chicken, the screamer, and the ancestor of duck-related birds. In Neoaves, this gene pair differentiated in each of the six sampled representatives, respectively. Additionally, three of our investigated loci can be utilized as universal, easy-to-use independent tools for molecular sexing of Neoaves or Neognathae.
登录
查看更多内容
DOI:
10.1073/pnas.95.14.8147
发表时间:
1998-07-07
影响因子:
11.1
作者:
Fridolfsson, AK;Cheng, H;Ellegren, H
通讯作者:
Ellegren, H
影响因子:
2.6
作者:
Pigozzi, MI;Solari, AJ
通讯作者:
Solari, AJ
影响因子:
10.7
作者:
García-Moreno, J;Mindell, DP
通讯作者:
Mindell, DP
影响因子:
3.3
作者:
Nam, Kiwoong;Ellegren, Hans
通讯作者:
Ellegren, Hans
影响因子:
2.6
作者:
Shetty, S;Griffin, DK;Graves, JAM
通讯作者:
Graves, JAM