New perspectives on the causes and consequences of male meiotic drive

C Courret, X Wei, AM Larracuente - Current Opinion in Genetics & …, 2023 - Elsevier
Gametogenesis is vulnerable to selfish genetic elements that bias their transmission to the
next generation by cheating meiosis. These so-called meiotic drivers are widespread in …

[HTML][HTML] Proliferation and dissemination of killer meiotic drive loci

EC Lai, AA Vogan - Current Opinion in Genetics & Development, 2023 - Elsevier
Highlights•Meiotic drive genes are frequently composed of gene families.•Transposable
elements can drive meiotic gene family expansion.•Meiotic drive genes rapidly diversify and …

miRNA/siRNA-directed pathway to produce noncoding piRNAs from endogenous protein-coding regions ensures Drosophila spermatogenesis

T Iki, S Kawaguchi, T Kai - Science Advances, 2023 - science.org
PIWI-interacting RNA (piRNA) pathways control transposable elements (TEs) and
endogenous genes, playing important roles in animal gamete formation. However, the …

Rapid evolutionary dynamics of an expanding family of meiotic drive factors and their hpRNA suppressors

J Vedanayagam, CJ Lin, EC Lai - Nature ecology & evolution, 2021 - nature.com
Meiotic drivers are a class of selfish genetic elements whose existence is frequently hidden
due to concomitant suppressor systems. Accordingly, we know little of their evolutionary …

piRNA-mediated gene regulation and adaptation to sex-specific transposon expression in D. melanogaster male germline

P Chen, AA Kotov, BK Godneeva… - Genes & …, 2021 - genesdev.cshlp.org
Small noncoding piRNAs act as sequence-specific guides to repress complementary targets
in Metazoa. Prior studies in Drosophila ovaries have demonstrated the function of the piRNA …

Essential and recurrent roles for hairpin RNAs in silencing de novo sex chromosome conflict in Drosophila simulans

J Vedanayagam, M Herbette, H Mudgett, CJ Lin… - PLoS …, 2023 - journals.plos.org
Meiotic drive loci distort the normally equal segregation of alleles, which benefits their own
transmission even in the face of severe fitness costs to their host organism. However …

The hpRNA/RNAi pathway is essential to resolve intragenomic conflict in the Drosophila male germline

CJ Lin, F Hu, R Dubruille, J Vedanayagam, J Wen… - Developmental cell, 2018 - cell.com
Intragenomic conflicts are fueled by rapidly evolving selfish genetic elements, which induce
selective pressures to innovate opposing repressive mechanisms. This is patently manifest …

Analysis of nearly one thousand mammalian mirtrons reveals novel features of dicer substrates

J Wen, E Ladewig, S Shenker… - PLoS computational …, 2015 - journals.plos.org
Mirtrons are microRNA (miRNA) substrates that utilize the splicing machinery to bypass the
necessity of Drosha cleavage for their biogenesis. Expanding our recent efforts for …

New genes often acquire male-specific functions but rarely become essential in Drosophila

S Kondo, J Vedanayagam, J Mohammed… - Genes & …, 2017 - genesdev.cshlp.org
Relatively little is known about the in vivo functions of newly emerging genes, especially in
metazoans. Although prior RNAi studies reported prevalent lethality among young gene …

The Y chromosome as a battleground for intragenomic conflict

D Bachtrog - Trends in Genetics, 2020 - cell.com
Y chromosomes are typically viewed as genetic wastelands with few intact genes. Recent
genomic analyses in Drosophila, however, show that gene gain is prominent on young Y …