pericentric inversion

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per·i·cen·tric in·ver·sion

inversion in a chromosome of a single segment that includes the centromere.
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Most of this karyotypic variation has been attributed to pericentric inversions and centric fusions, evidenced by comparative GTG- and CBG-banding, location of telomeres by in situ hybridization, and chromosome painting.
pallidipennis populations sited at lower altitudes tend to support larger individuals, where pericentric inversions are more frequent (Colombo 2014).
The karyotype of this species (2sm + 4st + 42a) demonstrates the occurrence of pericentric inversions in three chromosome pairs (1st, 2nd, and 3rd pairs), a common rearrangement in Perciformes that accounts for most of karyotype diversification in marine fish [24].
The frequency of pericentric inversions among the commonest chromosomal rearrangements is 1-2%.
He chose an exceptional group of Acrididae for his cytogenetic work, the Oedipodinae genera Trimerotropis and Circotettix (White 1949, 1951); in these he pioneered studies on the effects of pericentric inversions (and other rearrangements) on meiosis and on racial and specific differentiation in grasshoppers.
Two pericentric inversions, inv(2) (p11q13) and inv(5)(p13q13), in a patient referred for psychiatric problems.
The relative length of chromosomes 1 to 18 was not different between the species, but 5 of their chromosomes (numbers 4, 7, 9, 11, & 18) were significantly different in relative lengths of short and long arm and in centromeric index, differences that can be explained by pericentric inversions. These observed differences in karyotype between the two species support the previous contention of evolutionary divergence by lysine studies.
The most commonly observed rearrangements were centric fusions, tandem fusions and pericentric inversions. In this current study, only a single pericentric inversion was seen among the autosomal complements of these four species.
The sex chromosomes consist of three variations of subtelocentric, telocentric, and metacentric types caused by two pericentric inversions and conduct the different sex determining systems (19,20).
severum (Heckel, 1840), which show a smaller number, mainly through robertsonian rearrangements and pericentric inversions (Thompson 1979).
Pericentric inversions are not protected in this manner.