Spontaneous formation of compound X chromosomes in Drosophila melanogaster. | Zendy

R. J. Morrison | Zendy; John D Raymond | Zendy; J R Zunt | Zendy; Jinkyu Lim | Zendy; Michael J Simmons | Zendy

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Spontaneous formation of compound X chromosomes in Drosophila melanogaster.

Author(s) -

R. J. Morrison,

John D Raymond,

J R Zunt,

Jinkyu Lim,

Michael J Simmons

Publication year - 1988

Publication title -

genetics.

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.792

H-Index - 246

ISSN - 3049-7094

DOI - 10.1093/genetics/119.1.95

Subject(s) - biology , locus (genetics) , genetics , drosophila melanogaster , chromosome , recombination , x chromosome , carnation , gene , botany

Males carrying different X chromosomes were tested for the ability to produce daughters with attached-X chromosomes. This ability is characteristic of males carrying an X chromosome derived from 59b-z, a multiply marked X chromosome, and is especially pronounced in males carrying the unstable 59b-z chromosomes Uc and Uc-lr. Recombination experiments with one of the Uc-lr chromosomes showed that the formation of compound chromosomes depends on two widely separated segments. One of these is proximal to the forked locus and is probably proximal to the carnation locus. This segment may contain the actual site of chromosome attachment. The other essential segment lies between the crossveinless and vermilion loci and may contain multiple factors that influence the attachment process.

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