Y-STR haplotypes from eight south Indian groups based on five loci

Area of Science:

• Population Genetics
• Human Genetics
• Forensic Science

Background:

• Y-chromosome short tandem repeats (STRs) are crucial markers for studying human male population genetics and evolutionary history.
• South India harbors diverse tribal populations with unique genetic ancestries that remain under-researched.
• Understanding genetic diversity in tribal groups is vital for anthropological and forensic applications.

Purpose of the Study:

• To characterize the genetic diversity of five Y-chromosome STR loci (DYS389I, DYS389II, DYS390, DYS391, DYS393) in seven South Indian tribal populations.
• To establish a baseline genetic profile for these populations for potential use in forensic identification and anthropological studies.
• To compare genetic variation among tribal groups and with a South Indian caste population.

Main Methods:

• Genotyping of five Y-chromosome STR loci (DYS389I, DYS389II, DYS390, DYS391, DYS393) was performed.
• DNA samples were analyzed from 81 males belonging to seven distinct tribal groups in South India.
• A control group of 11 South Indian individuals with mixed caste origins was also included.

Main Results:

• Allele frequencies and statistical parameters for the typed Y-STR loci were determined for each population.
• Significant genetic differentiation was observed among the studied tribal populations.
• The data provided a detailed genetic fingerprint for the Koraga, Yerava, and other tribal groups.

Conclusions:

• The Y-STR profiles offer valuable insights into the genetic structure and relationships of South Indian tribal populations.
• This research contributes essential data for forensic casework and the study of South Indian population genetics.
• Further research with larger sample sizes and more genetic markers is recommended to refine understanding of these populations.