Results 41 to 50 of about 226,802 (259)

Chromosomal control of pig populations in France: 2002-2006 survey [PDF]

open access: yes, 2007
The chromosomal control of pig populations has been widely developed in France over the last ten years. By December 31st, 2006, 13 765 individuals had been karyotyped in our laboratory, 62% of these since 2002.
Berland, Hélène-Marie   +8 more
core   +4 more sources

Hexavalents in spermatocytes of Robertsonian heterozygotes between Mus m. domesticus 2n 26 from the Vulcano and Lipari Islands (Aeolian Archipelago, Italy) [PDF]

open access: yes, 2018
The size and shape of the chromosomes, as well as the chromosomal domains that compose them, are determinants in the distribution and interaction between the bivalents within the nucleus of spermatocytes in prophase I of meiosis.
Eliana Ayarza   +6 more
core   +3 more sources

Preimplantation genetic diagnosis by fluorescence in situ hybridization of reciprocal and Robertsonian translocations

open access: yesTaiwanese Journal of Obstetrics & Gynecology, 2014
Objective: The presence of reciprocal and Robertsonian chromosomal rearrangement is often related to recurrent miscarriage. Using preimplantation genetic diagnosis, the abortion rate can be decreased. Cases treated at our center were reviewed.
Chun-Kai Chen   +9 more
doaj   +1 more source

Emanuel Syndrome: A Case Report With Isolated Nuchal Translucency Thickening. [PDF]

open access: yesCase Rep Genet
Introduction Emanuel syndrome is a rare chromosomal disorder characterized by severe developmental disability and variable clinical manifestations. Although congenital anomalies are relatively common, there is no pathognomonic prenatal pattern. In some cases, structural defects are absent or not detectable prenatally, making the potential role of soft ...
Maya B   +5 more
europepmc   +2 more sources

Pericentromeric organization at the fusion point of mouse Robertsonian translocation chromosomes [PDF]

open access: yes, 2001
In mammals, Robertsonian (Rb) translocation (the joining of two telo/acrocentric chromosomes at their centromere to form a metacentric) is the most effective process in chromosomal evolution leading to speciation; its occurrence also affects human health
Capanna, E.   +5 more
core   +3 more sources

Robertsonian Translocations: An Overview of 872 Robertsonian Translocations Identified in a Diagnostic Laboratory in China

open access: yesPLOS ONE, 2015
Robertsonian translocations (ROBs) have an estimated incidence rate of 1/1000 births, making this type of rearrangement the most common structural chromosomal abnormalities seen in the general population. In this study, we reports 872 cases of ROBs from 205,001 specimens karyotyped postnatally in a single accredited laboratory in China, including 583 ...
Shihui Yu   +8 more
openaire   +4 more sources

Premature ovarian failure in a woman with a balanced 15;21 translocation: a case report

open access: yesJournal of Medical Case Reports, 2011
Introduction A case of premature ovarian failure with concomitant findings of Robertsonian translocation between 15 and 21 chromosomes is reported here.
Asgari Zahra   +3 more
doaj   +1 more source

Familial reciprocal non robertsonian translocation t(14;22) resulting in 22q11.2 deletion syndrome

open access: yesThe Turkish Journal of Pediatrics, 2019
We report the clinical and genetic characterization of 2 cousins sharing the same chromosomal anomaly; a 22pter-q11.2 deletion and a 14pter-q13 duplication due to an unusual familial reciprocal non robertsonian translocation between 2 acrocentric ...
Nahla Nazmy   +3 more
doaj   +1 more source

The early evolutionary history of neo-sex chromosomes in Neotropical grasshoppers, Boliviacris noroestensis (Orthoptera: Acrididae: Melanoplinae) [PDF]

open access: yes, 2014
Neo-sex chromosomes are an important component of chromosome variation in Orthoptera, particularly South American Melanoplinae species, which have proven to be outstanding experimental model system to study the mechanism of sex chromosome evolution in ...
Castillo, Elio Rodrigo Daniel   +2 more
core   +1 more source

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