Study of genetic variation and phenetic relationships in some vulnerable taxa from Indian sundarbans following RAPD marker analysis
Journal Title: Scientific Journal of Biological Sciences - Year 2014, Vol 3, Issue 11
Abstract
The mangrove ecosystem plays an important role in maintaining coastal ecological balance and is also one of the most highly productive and dynamic ecosystems to mankind, providing food, livelihood and ecological security. The plant species of this ecosystem are constantly under environmental stress due to the highly saline conditions and extreme temperatures. Studying the genetic diversity of mangrove plants is important in taking effective measures to protect these species. The present study, being the first attempt in Indian Sundarbans, deals with RAPD (Random Amplified Polymorphic DNA) marker study of three IUCN declared ‘Vulnerable’ mangrove species viz. Xylocarpus granatum, Xylocarpus mekongensis and Heritiera fomes of Indian Sundarbans to assess its genetic diversity to trace their reduction in population size. These were collected from two distinct populations of Indian Sundarbans i.e. Sajnekhali Tiger Reserve and Bonnie Camp area. It was found that intra-specific polymorphism was highest (80%) in Xylocarpus granatum in and lowest (60 %) in Xylocarpus mekongensis while Heritiera fomes showed moderate (71.42 %) level of polymorphism. The decreasing population size can be assessed through the low genetic variation of Xylocarpus mekongensis and Heritiera fomes rather than Xylocarpus granatum. It can further be said that comparatively high genetic variation of Xylocarpus granatum, though, does not exactly correspond to its population structure, it may be due to its isolated distribution, dissimilar edaphic factors and different anthropogenic activities within the mangroves of Indian Sundarbans. We can conclude that molecular marker study provides an effective tool to access the existing inter- and intra-specific genetic polymorphism within mangrove species of Indian Sundarbans and to explore their conservation strategy.
Authors and Affiliations
A. Sarkar*| Lecturer, Department of Botany (Centre for Mangrove Ecosystem Research), Bankim Sardar College, P.O- Tangrakhali, South 24 Parganas, Pin- 743329, West Bengal, India., A. K. Sarkar| Associate Professor and Head of the Department, Department of Botany, West Bengal State University, Berunanpukuria, P.O- Mallikpur, North 24 Parganas, Pin- 700126, West Bengal, India., P. K. Sen| Associate Professor, Department of Botany (Centre for Mangrove Ecosystem Research), Bankim Sardar College, P.O- Tangrakhali, South 24 Parganas, Pin- 743329, West Bengal, India.
Keywords
Related Articles
- EP ID EP1113
- DOI 10.14196/sjbs.v3i11.1759
- Views 478
- Downloads 28
Effect of salinity on chickpea seed germination pre-treated with salicylic acid
Chickpea (Cicer arietinum L.) is known to be highly susceptible towards soil or water salinity, whose are the primary abiotic factors that limit growth and crop of this plant in Algeria. Therefore, more efforts are need...
Some biological aspect of carasobarbus luteus (Heckel, 1843) in hoor al-azim wetland
The Population Dynamics and status of Hemeri (Carasobarbus luteus) in Hoor Al-azim wetland (Khuzestan provinces, Iran) were investigated to derive information required for their management. During this study from 2011 to...
Mechanisms of plant growth promoting rhizobacteria (PGPR) and mycorrhizae fungi to enhancement of plant growth under salinity stress: A review
Salinity is the major environmental factor limiting plant growth and productivity. Under salinity conditions, plant growth is affected by a number of factors such as hormonal and nutritional imbalance, ion toxicity, phys...
Antimicrobial activity and biosynthesis of nanoparticles by endophytic bacterium inhabiting Coffee arabica L.
The interface between endophytes and nanomaterials is a relatively new and unexplored area the present study evaluates screening of bacterial endophytes from surfaced sterilized leaf and stem segments of agro economical...
Isolation, identification and comparison of lactic acid bacteria from fermented be produced in Iran Kimchi with Korean commercial samples: introduction of a probiotic product
Kimchi is the general term given to a group of acid fermented vegetable foods traditionally produced in Korea, China and other South Asian countries. In this study, two different formulations of Kimchi were produced in I...