Evolving Phylo-Lab

 

Center for Ecological Sciences

Indian Institute of Science, Bangalore 560 012

India

 

 

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Ashalakshmi C N

 

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E-mail:  ashalakshmi@ces.iisc.ernet.in

 

Phone: +91 80 2293 2506 ext. 313

 

 

My broad interest lies in applying genetics to conservation biology.  Currently I am involved in a DBT funded multidisciplinary project titled “Delimiting species boundaries among Hanuman langurs (Semnopithecus entellus)”. Hanuman langur is one of the most widely distributed primate species in India with high degree of morphological and genetic variability. The project merges genetics, morphology, behavior and ecology to clarify species status of different Hanuman langur populations.

 

My role includes carrying out the genetic analyses. Using one mitochondrial and several nuclear markers, I am trying to find out how many species of Hanuman langurs does multi-locus molecular data supports. Moreover I am plotting these genetic data to previously defined taxonomical species in order to obtain a robust taxonomy of Hanuman langurs.

 

The challenging aspect of this work involves the use of non-invasive sources of DNA such as feces where as the keen part include the molecular analyses involving phylogenetic and population genetic tools .

 

 

 

 

Aniruddha DAtta Roy

 

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E-mail:  roy@ces.iisc.ernet.in

 

Phone: +91 80 2293 2506 ext. 313

 

I am interested in the evolutionary history of the endemic fauna of Western Ghats. In this regard, I plan to use molecular tools to test various biogeographical hypotheses, such as Gondwanan origin or Southeast Asian affinity. To address this question I am using Lizards of the family Scincidae as a model system. Skinks are an ancient lineage, originated in Gondwana supercontinent around 200 Million years ago.  Currently, they are the second largest family of lizards in the world. I am also building a phylogeny of Indian skinks, which includes 19 genera constituting approximately 61 species out of which 32 are endemic to India. In the Western Ghats alone, the number of endemic species are 16. I am also interested in the widely distributed genus Mabuya, which has been recently divided into four different genera based on molecular phylogeny (Mausfeld et al, 2002, 2003). This work recommended placing the Asian Mabuya species in a separate genus Eutropis.  But here only five among the 19 species of Indian Mabuya were used. I am interested to ascertain whether the other Indian species of the genus Mabuya would also fall into the same lineage as that of the Eutropis.

Apart from this work, I am also interested in the herpetofauna of the Northeast India, partly because I was born and brought up there and partly because it is a very interesting biogeographic region.  It sits in the confluence of multiple biogeographic sub zones with fauna that is derived from both central and peninsular India, the Himalayas, and the Southeast Asia. Very little work has been done on the Northeast Indian herpetofauna. To bridge this gap I am planning on expanding my area of interest to Northeast in the future. 

 

 

 

 

Chetan Nag K S

 

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Email:  chetan@ces.iisc.ernet.in 
 
Phone: +91 80-22932786 ext-313

 

I am presently involved in a Department of Biotechnology, Government of India project titled “Delimiting species boundaries among Hanuman langurs (Semnopithecus entellus)” as a senior research fellow. The taxonomic status of Hanuman langurs of India (Family: Cercopithecidae, Subfamily: Colobinae) remains unresolved where most authors split Hanuman langurs to be a single species, Semnopithecus entellus, but divide this species into 14, 15, and 16 subspecies. Others split Hanuman langurs to as many as two, four, seven distinct species based only on variation in morphological characters. In the light of the existing ambiguities in Hanuman langur literature, I am currently interested in a systematic study of different morphotypes of Hanuman langurs (Semnopithecus entellus) wherein morphological characters in conjunction with ecological, behavioral, data will be used to understand the conservation status and taxonomic position of these langurs from peninsular India. My preliminary observations from field suggest that there are at least four distinct morphotypes in peninsular India.  Therefore there might be multiple species of Hanuman langurs in peninsular India.

My broad interests are in fields of Ecology, Evolution &, Biogeography.

 

 

 

 

Aparna Lajmi

 

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Email: aparna.lajmi@gmail.com
 
Phone: +91 80-22932786 ext-313

 

I completed my Masters in Neurobiology before joining the lab in 2010. My areas of interest are systematics, evolutionary history of organisms and biogeography.

 

I am working on a species of gekkonid lizard called Hemidactylus brookii, which is widely distributed. This group is known to be a complex of species for more than 70 years. While recent work has elevated the status of African and northern South American subspecies to the level of new species, it is known that the ‘true’ H. brookii has a south Asian origin.

 

My work involves identifying different clades of this cryptic species in India, through the use of molecular phylogeny, and unique morphological characters associated with each clade.