Sex-linked inheritance of a cuticular pigmentation marker in the marine isopod, Paracerceis sculpta Holmes (Crustacea: Isopoda: Sphaeromatidae)
Article Abstract:
It has been possible to establish a sex bias in the expression of a cuticular pigmentation marker in population samples of Paracerceis sculpta, a Gulf of California isopod, collected over 10 years. The inheritance of this marker has been detailed in three generations of isopods reared in a laboratory. It has been established that sex determination in this isopod involves female heterogamety, with the distinctive stripe pattern being W-linked, where ZW = females and ZZ = males. Existing evidence of chromosomal sex determination and female heterogamety in this species has been confirmed.
Publication Name: The Journal of Heredity
Subject: Biological sciences
ISSN: 0022-1503
Year: 1999
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Genetic diversity in natural populations of wild soybean in Iwate prefecture, Japan
Article Abstract:
A study was done on the genetic diversity of four populations of wild soybeans using gel electrophoresis. It was shown that genetic diversity among the soybean species was carried primarily by different homozygotes because of self-pollination. Thirty eight point one percent of the 42 loci examined from 15 enzymes and one non-enzyme protein showed polymorphism. Between-population diversity was 0.074 while within-population diversity was calculated at 0.302.
Publication Name: The Journal of Heredity
Subject: Biological sciences
ISSN: 0022-1503
Year: 1992
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A sex-linked enzyme polymorphism in the marine isopod Jaera ischiosetosa
Article Abstract:
Marine isopods Jaera albifrons, J. ischiosetosa and J. praehirsuta were studied for genetic variation at the Gpi enzyme locus. The variation among the Gpi enzyme locus of the different marine isopods was attributed to the separation of the three alleles at an autosomal locus. The Gpi locus on J. ischisetosa was explained by the presence of a sex-linked polymorphism where both sex chromosomes carry the Gpi locus.
Publication Name: The Journal of Heredity
Subject: Biological sciences
ISSN: 0022-1503
Year: 1992
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