Sunday, June 28, 2015

Negombo 3rd Floor Furnished Studio Apartment

Negombo 3rd Floor Furnished Studio Apartment
contact sereno/barr 077-8584009 or
(pdf flyer here)
Overlooking the Mangroves. Quiet residential area. The balcony faces the mangroves and partial views of the Negombo Lagoon.

It is very private and secluded, even while being open and airy. There are no other buildings at this height nearby. i.e. Can have all doors and windows open without having to worry about prying eyes. For those so inclined can work on their tan from the balcony.

This is a 3rd floor studio apt of 830 square feet living space (excluding bathrooms, washing machine space, side balconies and loft space).

The ground floor is empty and can be used as parking space. The 2nd floor is occupied by a single Female (my sister).

There are two bathrooms, one attached to the bedroom and the other open to the mangroves and lagoon. There is also separate space/alcove for a washing machine.
There is provision for an air conditioner. Probably not needed as stiff breeze and minimal mosquitoes even though next to the lagoon.
There is also a loft (230 square feet) with access by a ladder if needed.
Expected Rent: LKR 75,000/month on long term lease

Furniture etc
  • Refrigerator
  • 4 burner stove and oven (gas)
  • Living room sofa etc (old style)
  • Full Size bed
  • Almirah/Wardrobe
Nearby Facilities
  • Keels supermarket (600m)
  • Stadium/Gym (unhappily no pool) 150 m
  • NARA Mangrove Reserve (150 m)
  • Negombo main bus stand (1 km)
Attached Bathroom

Friday, June 12, 2015

mtDNA of Sri Lankans

mtDNA Tree
Summary of Ranaweera et al 2014 (for complete Figures and Tables ). Note this is just the maternal mtDNA (maternal) which is 1/24th of the genetic make up. See second box in DNA primer
  • Vedda groups (mtDNA) is much different from the rest of Sri Lankans (higher frequency of haplogroup R30b/R8a1a3 in all Vedda subgroups). 
  • There is no clear genetic separation based on the PCA map between Sinhalese and Tamils, and between Up- and Low-country Sinhalese of Sri Lanka.
  • However, the closer association of the Up-country Sinhalese with the Sri Lankan
    Tamils than with the Indian Tamils is not in agreement with the geographic distances among them.
Pretty much the same as in India. i.e. the maternal mtDNA unites the country 
Maybe  Paternal Y-DNA (yet to be done for Sri Lanka) divides by caste, groups etc.
See Vijaya Kuveni: Paradigm for M mtDNA

Haplogroup frequency in Sri Lankan population
No. of samples (%)
Haplogroup Vedda Sinhalese
Sri Lankan
Haplogroup M 13 (17.33) 25 (41.67) 17 (42.5) 17 (43.59) 40 (70.18) 112 (41.33)
Haplogroup D 2 (2.67) 1 (1.67) 0 (0) 2 (5.13) 0 (0) 5 (1.85)
Haplogroup HV 0 (0) 1 (1.67) 1 (2.5) 7 (17.95) 0 (0) 9 (3.32)
Haplogroup N 0 (0) 2 (3.33) 0 (0) 0 (0) 1 (1.75) 3 (1.11)
Haplogroup R/U 0 (0) 1 (1.67) 0 (0) 0 (0) 3 (5.26) 4 (1.48)
Haplogroup R 34 (45.33) 10 (16.67) 10 (25) 3 (7.69) 5 (8.77) 62 (22.88)

Among groups
Among populations
within groups
Within populations
Model Variance P-value Variance P-value Variance P-value
Ethnic criteriab 1.72 0.039 8.61 0.001 89.66 0.001
Linguistic criteriac 2.57 0.002 8.2 0.001 89.23 0.001
Geographic criteriad 0.55 0.677 10.56 0.001 89.99 0.001
Vedda vs others 4 0.002 8.15 0.001 87.85 0.001
Up-country Sinhalese vs Low-country Sinhalese 1.19 0.814 9.82 0.001 91.37 0.001
Sri Lankan Tamils vs Indian Tamils 0.73 0.027 2.19 0.028 97.08 0.003
b) Five groups (Vedda people, Up-country Sinhalese, Low-country Sinhalese, Sri Lankan Tamils and Indian Tamils).
c) Three groups (Vedda dialect, Indo-European language and Dravidian language).
d) Seven provinces (North, North-Central, Central, Eastern, Uva, Sabaragamuwa and South).
NOTE: AMOVA is used to measure haplotype diversity.

indicated that almost 50% of the individuals from all the studied populations belonged to haplogroup M lineages (including haplogroup M, D and G)"

"Three haplogroups, M2, U2i (U2a, U2b and U2c) and R5, recognized as a package of Indian-specific mtDNA clades harboring an equally deep coalescent age of about 50000–70000 years, 30 were present in the ethnic populations of Sri Lanka

It is quite astonishing to see such a lower frequency of M haplogroup in the Vedda population when compared with southern Indian tribal groups (70–80%) as well as southern Indian caste populations (65%).

The Vedda mtDNA, Specially Vedda-Rathugala (VA-Rat) and Vedda-Pollebadda (VA-Pol) seems a genetic isolate. See Figure 5 in Ranaweera et al. 

Similar study (mtDNA) on a bigger scale in India Chandrasekar et al 2009