Tuesday, 17 June 2008

CDFD study: Indian murghi and chicken separate

June 17, 2008
By Syed Akbar
Hyderabad, June 16: The Indian murghi (jungle fowl) not only tastes good but also tells the genetic history of other Indian birds, particularly the chicken.
A study conducted by the city-based Centre for DNA Fingerprinting and Diagnostics reveals that domestication of chicken has occurred independently in different locations of Asia including India. But the Indian chicken has not evolved from the Indian murghi as is commonly believed.
The Indian murghi (Gallus gallus murghi) is relatively pure and is not the parent of the Indian chicken. The CDFD study has shown that the red jungle fowl or Indian murghi and domestic birds do not hybridise in nature.
"Domestication of chicken is believed to have occurred in Southeast Asia, especially in Indus valley. However, non-inclusion of Indian red jungle fowl in previous studies has left a big gap in understanding the relationship of this major group of birds. In the present study, we addressed this issue by analysing 76 Indian birds
that included 56 Gallus gallus murghi, 16 Gallus gallus domesticus (domestic chicken) and four Gallus sonneratii (grey jungle fowl).
We also compared the D-loop sequences of Indian birds with those of 779 birds obtained from GenBank. Our results suggest that the domestication of chicken has occurred independently in different locations of Asia including India," according to CDFD's J Nagaraju.
The study was conducted jointly by Nagaraju, K Sriramana, M Muralidhar and RD Jakati.
Further, the study also suggested that the chicken populations have undergone population expansion, especially in the Indus valley.
Archaeological findings have indicated that the "mother of all poultry" is the Southeast Asian Red jungle fowl or Gallus gallus. Since domestication of chicken has been observed at the Indus valley as early as 3,200 BC, it is believed to be the epicentre of chicken domestication.
There was very rare genetic exchange between the red jungle fowl and domestic chicken populations, at least in recent history. A Maximum Likelihood tree obtained from the microsatellite data showed a clear separation of Gallus gallus domesticus from the Gallus gallus murghi, with Gallus sonneratii as an outgroup suggesting the genetic distinctness of Gallus gallus murghi.
The scientists also constructed a genetic distance based neighbour-joining tree to obtain the genetic relationship among Indian birds.
The result clearly pointed to the fact that hybridisation between Indian chicken and Indian red jungle fowl in the wild is extremely rare.

1 comment:

Raju Sykam said...

Salaam Vaalekum Akbar ji,

really nice to see your blog. expecting more interesting articles from you n our friend suryanarayana. BTW,where do u work?

Word Of The Day - Improve Your Knowledge

Word of the Day

Article of the Day

This Day in History

Today's Birthday

In the News

Quote of the Day

Spelling Bee
difficulty level:
score: -
please wait...
spell the word:

Match Up
Match each word in the left column with its synonym on the right. When finished, click Answer to see the results. Good luck!



This Day In History

Mother's Care

Mother's Care
Minnu The Cat & Her Kittens Brownie, Goldie & Blackie

Someone with Nature

Someone with Nature
Syed Akbar in an island in river Godavari with Papikonda hills in the background

Recognition by World Vegetable Centre

Recognition by World Vegetable Centre

Under the shade of Baobab tree

Under the shade of Baobab tree
At Agha Khan Akademi in Kenya

Gateway to the Southern Hemisphere

Gateway to the Southern Hemisphere

Convention on Biodiversity

Convention on Biodiversity
Syed Akbar at the 11th Conference of Parties to the United Nations Convention on Biological Diversity