Work

The behavior during pachynema of a normal and an inverted Y chromosome in Microtus agrestis

Year: 2008

Type: article

Abstract: The pachytene behavior of the chromosomes of Microtus agrestis (L.) (Rodentia, Arvicolidae) males carrying either the standard, or the pericentrically inverted Lund Y chromosome have been examined by electron microscopy of microspread spermatocytes. There is no synapsis between the X and either the standard or the Lund Y chromosomes during any substage of pachynema. Since synapsis is generally considered a prerequisite for crossing over, there appears to be no opportunity for crossover or chiasma formation between the X and Y in this species. The G-, C- and NOR-banded mitotic karyotypes of animals carrying the standard and Lund Y are also presented.

Source: Hereditas

DOI: 10.1111/j.1601-5223.1990.tb00407.x

Authors: TERRY ASHLEY, MAARIT JAAROLA, KARL FREDGA

Institutions: University of Tennessee at Knoxville, Uppsala University

Language: English

Topic: Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities

Subfield: Genetics

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

Open Access status: gold

Estimated APC paid: $2,590

OpenAlex ID: W2035348183

FWCI: 0.38

Cites: 48

Cited by: 26

Related to: 10