Pericentric inversions and sex chromosome heteromorphisms inOryzomys nigripes(Rodentia, Cricetidae)
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چکیده
منابع مشابه
Two pericentric inversions of human chromosome 11.
A pericentric inv(11) (pl5q23) detectable by G-, Q-, and R-banding and occuring in 1 member of each of 3 generations of a family is described. In another family studied by several banding methods in search of chromosomal markers, a pericentric inv(11) (p11q11) was found. It was detectable only by C-banding, the darkly staining band being located on the short-arm side of the centromere. The reas...
متن کاملSex-chromosome variability in Zygodontomys lasiurus (Rodentia, Cricetidae).
Specimens of Zygodontomys lasiurus have been collected in different regions of Brazil such as the State of Sao Paulo (Yonenaga 1972, 1975), Amazon region (Bar roso and Barros 1978), and the State of Pernambuco, in the Northeast region (Maia and Langguth, in press). The basic karyotype (2n=34) includes 32 autosomes consisting of 15 acrocentric pairs and one small metacentric pair. The X chromo -...
متن کاملPreimplantation genetic diagnosis of pericentric inversions.
Inversions are structural chromosome abnormalities that may be associated with infertility, multiple miscarriage and chromosomally unbalanced offspring. Preimplantation genetic diagnosis (PGD) with subtelomeric probes was used to select for transfer only those embryos that were normal or balanced for three pericentric inversions. In contrast to previous protocols the present procedure allows th...
متن کاملAre Pericentric Inversions Reorganizing Wedge Shell Genomes?
Wedge shells belonging to the Donacidae family are the dominant bivalves in exposed beaches in almost all areas of the world. Typically, two or more sympatric species of wedge shells differentially occupy intertidal, sublittoral, and offshore coastal waters in any given locality. A molecular cytogenetic analysis of two sympatric and closely related wedge shell species, Donax trunculus and Donax...
متن کاملGoldenhar Syndrome and Pericentric Inversion of Chromosome 9
Oculo-auriculovertebral dysplasia (Goldenhar) is a congenital syndrome. Its phenotype differs from craniofacial anomalies to cardiac, vertebral or central nervous system defects. This syndrome is rare and its etiology is not apparent yet. Pericentric inversion of chromosome 9 is one of the most common structural balanced chromosomal aberrations with its incidences 15% to 25%. Herein we present ...
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ژورنال
عنوان ژورنال: Caryologia
سال: 1991
ISSN: 0008-7114,2165-5391
DOI: 10.1080/00087114.1991.10797020