| Regions with significant populations | |
|---|---|
| Borneo: | |
 Indonesia (East Kalimantan,North Kalimantan) | n/a |
| Languages | |
| Basap language,Indonesian language | |
| Religion | |
| Christianity,Kaharingan | |
TheLebbo' people (also known as theBasap) are part of the indigenousDayak people ofEast Kalimantan andNorth Kalimantan,Indonesia.
Before the modern era, the Lebbo' people were oftenhunter-gatherers orhorticulturalists.
Most members of the Lebbo' live in theSangkulirang-Mangkalihat Karst range and speak a variety of theBasap language.[1]
In their full autosomal genome, the Lebbo' harbor bothAustronesian-related andMainland Southeast Asian (=Austroasiatic-related) ancestries, like most ethnic groups in the western part ofInsular Southeast Asia. Additionally (and – as of now – uniquely among peoples sampled from Borneo and other parts of western Insular Southeast Asia), they have a significant ancestral compontent related toPapuans.[2][3]
In a small sample of Lebbo' males (15 individuals) the followingY-DNA haplogroups were found:C* (M130) 13.33%,K* (M9) 6.67%,K2 (M526) 13.33%,O1b1a1a1a1a (M88) 33.33%,O1a2 (M50) 26.67%, andO2a1b~ (M164) 6.67%.[4] A previous study found a small percentage of Lebbo' males (two individuals) to be the only known members of the rareC1b1a2a, also known as C-B67.[5] According to a study by the same team of researchers published in 2022, C-B67 also has been found in one individual fromLembata and four individuals fromFlores, both of which are islands inEast Nusa Tenggara, Indonesia.[6] (The less rare sibling clade C1b1a2b/C-F725 has been found in members of theMurut people inBrunei,Malay people inSingapore,Aeta people in thePhilippines, andHan Chinese in China.[5])
The most commonMitochondrial DNA haplogroups found amongst a small sample of 19 Lebbo' individuals were:B4a 21.05%,B5a 15.79%,M20 15.79%,M71a2 15.79%,R9b1a1a 10.53% andE1a 21.05% out of a sample size of 19 Lebbo' people.[4]
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