Gene-rich X chromosomes implicate intragenomic conflict in the evolution of bizarre genetic systems

• Published in: Proceedings of the National Academy of Sciences - PNAS Vol. 119; no. 23; p. e2122580119
• Main Authors: Anderson, Noelle, Jaron, Kamil S, Hodson, Christina N, Couger, Matthew B, Ševčík, Jan, Weinstein, Brooke, Pirro, Stacy, Ross, Laura, Roy, Scott William
• Format: Journal Article
• Language: English
• Published: United States National Academy of Sciences 07.06.2022
• Subjects: Animals; Biological Sciences; Chromosomes; Diploidy; Evolution; Evolution, Molecular; Evolutionary genetics; Genes; Genome - genetics; Genomes; Haploidy; Hemizygosity; Hypotheses; Invertebrates; Male; Males; Mutation; Sex; Sex determination; Sex Determination Processes; Sex ratio; Species; X Chromosome - genetics; X chromosomes; haplodiploidy; genomic conflict; insects; sex chromosomes; sex determination

Haplodiploidy and paternal genome elimination (HD/PGE) are common in invertebrates, having evolved at least two dozen times, all from male heterogamety (i.e., systems with X chromosomes). However, why X chromosomes are important for the evolution of HD/PGE remains debated. The Haploid Viability Hypo...