title: Genetic and environmental components of chiasma control. I. Spatial and temporal variation in Schistocerca and Stethophyma.
mesh_terms: D000818:Animals; D001181:Arthropods; D002875:Chromosomes; D003434:Crossing Over, Genetic; D004777:Environment; D005823:Genetics; D008297:Male; D008540:Meiosis; D013094:Spermatozoa / Q000032:analysis; D013696:Temperature; D013737:Testis / Q000166:cytology