A Critical Component of Meiotic Drive in Neurospora Is Located Near a Chromosome Rearrangement

A critical component of meiotic drive in Neurospora is located near a chromosome rearrangement.

Neurospora fungi harbor a group of meiotic drive elements known as Spore killers (Sk). Spore killer-2 (Sk-2) and Spore killer-3 (Sk-3) are two Sk elements that map to a region of suppressed recombination. Although this recombination block is limited to crosses between Sk and Sk-sensitive (Sk(S)) strains, its existence has hindered Sk characterization. Here we report the circumvention of this ob...

A critical component of meiotic drive in Neurospora is located near a chromosome

1 Corresponding author: 10 Thomas M. Hammond 11 250 Science Laboratory Building 12 School of Biological Sciences 13 Illinois State University 14 Normal, IL 61790 15 Phone: 309-438-2602 16 Email: [email protected] 17 18 key words: meiosis, meiotic drive, genome sequencing and mapping, selfish elements, Spore 19 killer 20 21 Genetics: Early Online, published on June 14, 2014 as 10.1534/genetics.1...

A Meiotic Drive Element in the Maize Pathogen Fusarium verticillioides Is Located Within a 102 kb Region of Chromosome V

Fusarium verticillioides is an agriculturally important fungus because of its association with maize and its propensity to contaminate grain with toxic compounds. Some isolates of the fungus harbor a meiotic drive element known as Spore killer (Sk(K)) that causes nearly all surviving meiotic progeny from an Sk(K) × Spore killer-susceptible (Sk(S)) cross to inherit the Sk(K) allele. Sk(K) has be...

Sex Chromosome Meiotic Drive

Chromosome-wide linkage disequilibrium as a consequence of meiotic drive.

Adaptation by natural selection proceeds most efficiently when alleles compete solely on the basis of their effects on the survival and reproduction of their carriers. A major condition for this is equal Mendelian segregation, but meiotic drive can short-circuit this process. The evolution of drive often involves multiple, interacting genetic components, together with enhancers and suppressors ...