Meitei Yek Salai System and Genetic Science

Yek Salai & Genetics

The Meitei Yek Salai System

How an ancient seven-clan framework maps onto modern Y-chromosome inheritance—and why it still shapes marriage rules today.

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1 · Origins of the Seven Salai

The earliest royal chronicles (Cheitharol Kumbaba) trace the consolidation of disparate valley chiefdoms under King Nongda Lairen Pakhangba (33 CE). Over centuries of warfare, alliance, and marriage, smaller polities merged into the familiar septet [1][2]:

1. Mangang (Ningthouja)
2. Angom
3. Luwang
4. Khuman
5. Khaba-Nganba
6. Moirang
7. Chenglei (Sarang Leishangthem)

Each Salai contains hundreds of yumnak (surnames) that can—all things equal—trace their male line back to a single legendary ancestor [3][4].

2 · The Seven Swords of the Salai

Each of the seven clans is represented by a unique sword, or thang, symbolizing its history and character. Click on a sword to learn about its Salai.

Select a sword to explore its Salai.

3 · The Genetic Rationale: Y Chromosome

The Salai system's strict marriage rules have a direct parallel in modern genetics, specifically in the inheritance of the Y-chromosome. This chromosome, which determines male sex, is passed directly from father to son with very little change, creating a clear patrilineal signature for each clan.

3.1 Patrilineal DNA

Because the Y-chromosome is passed down almost exclusively from father to son, all males within a single Salai will share a nearly identical Y-chromosome haplotype, tracing back to a common ancestor. The exogamy rules, which forbid marrying within the same Salai, ensure genetic diversity by preventing these identical Y-chromosomes from being paired with closely related mitochondrial DNA from the mother's side.

4 · Brother- & Sister-Yek: The Rules of Intermarriage

The system becomes more complex when considering "brother" clans (shairuk tinnaba) or when a clan fissions into new lines. Marriage between these related lines is forbidden for a set number of generations. The diagrams below illustrate how "blood is changed" over generations of daughters marrying into other clans, eventually making a new union permissible.

Figure 2: A simplified marriage lineage diagram. Click to enlarge.

Figure 3: A complex multi-lineage diagram. Click to enlarge.

5 · Key Takeaways

• The seven-Salai matrix, symbolized by distinct clan swords, remains a living social regulator guiding marriage eligibility.
• Its patrilineal logic directly mirrors the biology of Y-chromosome inheritance, making it one of humankind’s earliest and most enduring population-genetic frameworks.
• Interactive tools and modern DNA studies can validate—or refine—clan origin myths and help catalogue endangered lineages for future generations.

6 · References & Further Reading

1. Singh, O.R. (2019). “Traditional Rules and Regulations with the Old Age Custom of the Meitei Marriage.” Review of Research, 8(5).
2. Kabui, G. (1991). History of Manipur: Pre-Colonial Period. New Delhi.
3. Hodson, T.C. (1908 / 1989 repr.). The Meitheis. Delhi.
4. Nature Communications (2024). “Patrilineal segmentary systems provide a peaceful explanation for the post-Neolithic Y-chromosome bottleneck.”
5. Smith, W.R. (1903). Marriage & Kinship in Early Arabia.
6. L. Anupama Singh (2018). “The Social Structure of the Meiteis of Manipur.” Golden Research Thoughts.
7. Wikipedia contributors. “Y Chromosome.” Last modified 2025-06-15.
8. Karmin et al. (2015). “Genomic Y bottleneck.” Science.

© 2025 Bani A.T. • Enhanced digital edition with interactive tools.

Content revised for clarity, interactivity & references.