Open AccessThe effect of the Curly inversions on meiosis in Drosophila melanogaster
Author(s) -
VALENTIN JACK
Publication year - 1972
Publication title -
hereditas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 50
eISSN - 1601-5223
pISSN - 0018-0661
DOI - 10.1111/j.1601-5223.1972.tb01049.x
Subject(s) - biology , recombination , mitotic crossover , drosophila melanogaster , genetics , meiosis , loss of heterozygosity , chromosomal inversion , allele , genetic recombination , ectopic recombination , chromosomal crossover , homologous recombination , gene , gene conversion , chromosome , karyotype
In Drosophila melanogaster the interchromosomal effect of structurally homozygous In(2L + 2R)Cy on recombination in X was tested, using lethal‐free inversion chromosomes (which must always lack the Cy gene). The results show that (1) with homozygous inversions, X recombination is both enhanced and redistributed in a pattern reminiscent of that obtained with heterozygous inversions, (2) different Cy chromosomes with identical inversions but differing gene contents have different effects on distribution of X recombination. The results suggest that inversion heterozygosity increases the capacity for recombination in heterologous chromosomes while specific alleles of recombination‐affecting loci contained in these inversions may influence both amount and distribution of recombination.