Suppressed Recombination of Sex Chromosomes Is Not Caused by Chromosomal Reciprocal Translocation in Spiny Frog (Quasipaa boulengeri)
نویسندگان
چکیده
منابع مشابه
A De Novo Case of Floating Chromosomal Polymorphisms by Translocation in Quasipaa boulengeri (Anura, Dicroglossidae)
Very few natural polymorphisms involving interchromosomal reciprocal translocations are known in amphibians even in vertebrates. In this study, thirty three populations, including 471 individuals of the spiny frog Quasipaa boulengeri, were karyotypically examined using Giemsa stain or FISH. Five different karyomorphs were observed. The observed heteromorphism was autosomal but not sex-related, ...
متن کاملBalanced Reciprocal Translocation in A Case of Recurrent Miscarriage
Reciprocal translocation carriers have reduced fertility, increased risk of spontaneous abortion or unbalanced karyotype in their offspring. Here, we report the inheritance of a translocation between chromosomes 12 and 16 in a family with a history of five consecutive blighted ova and an offspring with three cell lines of different genotypes. We assessed parental karyotypes and identified a het...
متن کاملSex chromosomes: how X-Y recombination stops
In many animal and plant species, sex determination involves an homologous but heteromorphic chromosome pair, the X and Y sex chromosomes. These chromosomes generally differ greatly in length and sequence content, except in the ‘pseudoautosomal’ region, where X-Y recombination still occurs in male meiosis. In a pioneering study, Lahn and Page [1] investigated the highly differentiated and nonre...
متن کاملSilencing of unpaired meiotic chromosomes and altered recombination patterns in an azoospermic carrier of a t(8;13) reciprocal translocation.
BACKGROUND Male carriers of structural chromosomal abnormalities provide a useful model for studying the effects of impaired synapsis on human meioses and male fertility. METHODS We used immunofluorescent techniques to examine recombination (MLH1), synapsis (SYCP3/SYCP1) and transcriptional inactivation (BRCA1/gammaH2AX/RNA polymerase II) of meiotic chromosomes in an azoospermic carrier of a ...
متن کاملRecombination between Homologous Chromosomes Induced by Unrepaired UV-Generated DNA Damage Requires Mus81p and Is Suppressed by Mms2p
DNA lesions caused by UV radiation are highly recombinogenic. In wild-type cells, the recombinogenic effect of UV partially reflects the processing of UV-induced pyrimidine dimers into DNA gaps or breaks by the enzymes of the nucleotide excision repair (NER) pathway. In this study, we show that unprocessed pyrimidine dimers also potently induce recombination between homologs. In NER-deficient r...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Frontiers in Genetics
سال: 2018
ISSN: 1664-8021
DOI: 10.3389/fgene.2018.00288