Sex ratio, xy females and absence of inbreeding in a population of the wood lemming, myopus schisticolor lilljeborg, 1844

ABSTRACT In a Siberian population of the Wood Lemming a considerable excess of females has been observed for three subsequent years of low density. Female-biased sex ratio is associated with

a high concentration of the X* chromosome which induces the development of X*Y specimens as females. The frequency of XY females was noticeably higher than that expected at equilibrium

under random segregation of sex chromosomes in males and X*X° females. Estimates of FIS index were obtained from the frequencies of homozygotes and heterozygotes for the Idh-1 locus and for

dimorphic chromosome No. 2. Apparently inbreeding does not contribute to the maintenance of the aberrant genetic system of sex determination in natural populations of _Myopus schisticolor._

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references AUTHOR INFORMATION AUTHORS AND AFFILIATIONS * Institute of Plant and Animal Ecology, Academy of Sciences of the USSR, 202, 8 March Street, Sverdlovsk, 620219, USSR Emily A Gileva

* Institute of General Genetics, Academy of Sciences of the USSR, 2, Gubkin Street, Moscow, 117809, USSR Vadim B Fedorov Authors * Emily A Gileva View author publications You can also search

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permissions ABOUT THIS ARTICLE CITE THIS ARTICLE Gileva, E., Fedorov, V. Sex ratio, XY females and absence of inbreeding in a population of the Wood Lemming, _Myopus schisticolor_

Lilljeborg, 1844. _Heredity_ 66, 351–355 (1991). https://doi.org/10.1038/hdy.1991.44 Download citation * Received: 31 July 1990 * Issue Date: 01 June 1991 * DOI:

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available for this article. Copy to clipboard Provided by the Springer Nature SharedIt content-sharing initiative KEYWORDS * inbreeding * _Myopus schisticolor_ * sex ratio * Wood lemming