Congratulations to Kelsie for being admitted to the Bodega Applied Phylogenetics Workshop at the University of California Davis!
Automated Nuclear Cartography Reveals Conserved Sperm Chromosome Territory Localization across 2 Million Years of Mouse Evolution
DU delegates visited the University of Western Australia. The highlight of the trip was kangaroos!
Spermatogenesis and the Evolution of Mammalian Sex Chromosomes
Erica L. Larson, Emily E.K. Kopania, and Jeffrey M. Good
Developmental constraint and sexual conflict shape the evolution of hetero- morphic sex chromosomes. These contrasting forces are perhaps strongest during spermatogenesis in species with XY males. In this review, we consider how the unique regulatory environment and selective pressures of spermato- genesis interact to impact sex chromosome evolution in mammals. We explore how each developmental phase of spermatogenesis influences sex chromo- some gene content, structure, and rate of molecular evolution, and how these attributes may contribute to speciation. We argue that a developmental context is fundamental to understanding sex chromosome evolution and that an evolutionary perspective can shed new light on our understanding of sperm development. PAPER
The Murphy, Tinghitella and Larson Labs have been sampling clover across Denver as part of the Global Urban Evolution Project. We had great help from Veronica Huizar and Gui Zheng, who are participating in the University of Denver STEM Student Research Initiative. Check out Veronica and Gui's blogs about their summer research experience!