My research interests lie in understanding evolution using molecular tools. I have been working on plant systematics, especially the rare and endemic plants of India. Population explotion, global warming and improper land use has led to a great decline in the biodiversity of India. The current biodiversity of India is nested in a few hotspots inlcuding the Western Ghats, Eastern Ghats, the Himalayas, north eastern hill region and other mountain ranges such as the Aravallis and Vindhyas. These isolated hotspots show a remarkable level of species radiations shaped a number of ecological, geographical and paleoclimatic factors. The disjunct distributions, as well the speciation processes in the biodiversity hotspots is the focus of my research.
My research methods start with field work followed by inventorizing plant biodiveristy which is the starting point for biodiversity conservation. The next step involves the use DNA sequence information to study the evolution of the remarkable biological diversity of India. I use various markers including high-throughput DNA sequencing to build robust phylogenetic trees and identify patterns of evolution, and rapid speciation in species endemic lineages.
Apart from building phylogenies and studying biogeography I am also interested on ecological aspects such as plant-pollinator interactions and co-evolution of traits that might have influenced gene flow. Modern day land use such as farming and human habitation heavily hinders gene flow because of fragmentation of forests. I am interested to study the effect of this improper land usage on gene flow of threatened endemic plants, thereby predicting the threat to biodiversity. This in turn would help us strategize our conservation efforts either by proper policy making or resorting to in situ or ex situ conservation.
I am currently looking for graduate students intrested in field work and next-generation sequencing based evolutionary analysis. Intrested candidates can contact me.
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|11||Siddharthan Surveswaran, Neha Tiwari, Praveen K Karanth, Pradip V Deshmukh, Manoj M Lekhak (2022) , Molecular phylogenetics and character evolution in Haplanthodes (Acanthaceae), an endemic genus from peninsular India , Nordic Journal of Botany, Blackwell Publishing Ltd,2022,4, IF - 0.931.|
|10||Siddharthan Surveswaran, Sharad S. Kambale, Mansa Srivastav, Sachin A. Punekar, Shrirang R. Yadav, K. Praveen Karanth (2021) , Origin and diversification of Indian Ceropegieae (Apocynaceae) and its possible relation to the Indian monsoon , Journal of Systematics and Evolution, Wiley Online Library,59,(),93-112 IF - 3.544.|
|9||Samskrathi A Sharma, Siddharthan Surveswaran, James Arulraj, Krishnakumar Velayudhannair (2021) , Bromelain enhances digestibility of Spirulina-based fish feed , Journal of Applied Phycology, Springer Netherlands,33,2,967-977 IF - 3.404.|
|8||Siddharthan Surveswaran, Vinita Gowda, Mei Sun (2018) , Using an integrated approach to identify cryptic species, divergence patterns and hybrid species in Asian ladies’ tresses orchids (Spiranthes, Orchidaceae) , Molecular Phylogenetics and Evolution, Elsevier,124,(),106-121 IF - 5.019.|
|7||Siddharthan Surveswaran, Pankaj Kumar, Mei Sun (2017) , Spiranthes himalayensis (Orchidaceae, Orchidoideae) a new species from Asia , PhytoKeys, Pensoft,89,(),115-128 IF - 1.317.|
|6||Chih-Yao Hsu, Chung-Shien Wu, Siddharthan Surveswaran, Shu-Miaw Chaw (2016) , The complete plastome sequence of Gnetum ula (Gnetales: Gnetaceae) , Mitochondrial DNA Part A, Taylor ,27,5,3721-3722 IF - 1.695.|
|5||Kumar Vinod Chhotupuri Gosavi, Shrirang R Yadav, K Praveen Karanth, Siddharthan Surveswaran (2016) , Molecular phylogeny of Glyphochloa (Poaceae, Panicoideae), an endemic grass genus from the Western Ghats, India , Journal of Systematics and Evolution, ,54,2,162-174 IF - 3.544.|
|4||Siddharthan Surveswaran, Yi-Zhong Cai, Jie Xing, Harold Corke, Mei Sun (2010) , Antioxidant properties and principal phenolic phytochemicals of Indian medicinal plants from Asclepiadoideae and Periplocoideae , Natural Product Research, Taylor ,24,3,206-221 IF - 2.488.|
|3||Wu-Yang Huang, Yi-Zhong Cai, Siddharthan Surveswaran , Kevin David Hyde, Harold Corke, Mei Sun Y Cai (2009) , Molecular phylogenetic identification of endophytic fungi isolated from three Artemisia species , Fungal Diversity, Springer Netherlands,36,(),69-88 IF - 24.902.|
|2||Siddharthan Surveswaran , Mayur Y Kamble, Shrirang R Yadav, Mei Sun (2009) , Molecular phylogeny of Ceropegia (Asclepiadoideae, Apocynaceae) from Indian Western Ghats , Plant Systematics and Evolution, Springer,281,1,51-63 IF - 1.644.|
|1||Siddharthan Surveswaran , Yi-Zhong Cai, Harold Corke, Mei Sun (2007) , Systematic evaluation of natural phenolic antioxidants from 133 Indian medicinal plants , Food Chemistry , Elsevier,102,(3),938-953 IF - 9.231.|