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Updated: Jun 16, 2026

Frequency and Distribution of Crossovers in Caenorhabditis elegans Meiosis by SNP Genotyping using Real-time PCR
Published on: July 11, 2025
X-chromosome genetic variation in São Paulo State (Brazil) population
Joyce A Martins1, R H A Silva, A Freschi
1UNESP - São Paulo State University, School of Pharmaceutical Sciences, Paternity Laboratory, 14801-902 Araraquara-SP, Brazil. joyce_apa@hotmail.com
Abstract:
As data on X-chromosomal short tandem repeats (X-STRs) for the Brazilian population are scarse, the aim of this study was to determine the allele frequencies of five X-STRs (DXS6854, DXS7424, DXS101, DXS6808 and DXS7132) in the São Paulo State, Brazil. No deviations from the Hardy-Weinberg equilibrium were observed, with the exception of DXS101. The forensic efficiency parameters demonstrated that DXS101 was the most informative marker. Population comparisons revealed that the X-STR profile sampled in the state of São Paulo was more similar to European and African populations than Asiatic populations reported in this work.
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