Incidence of Life Stages of Strongylid Nematodes in the Giant African Snail, Achatina Fulica (Bowdich) in Bangalore Region

Jayashankar, M.; Murthy, G. S. Sreenivasa; Krishnappa, Darshan; Reddy, M. S.

doi:10.15373/22778160/apr2014/67

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“…It is a pestiferous snail and is recorded as one among the 100 most invasive species found in the world by IUCN (Lowe et al 2000). It is a vector for rat lung worm Angiostrongylus cantonensis that causes eosinophilic meningitis in humans, Angiostrongylus costaricensis that causes abdominal angiostrongyliasis, and another worm Angiostrongylus abstrusus, whose effects are yet to be known (Silvana et al 2007;Jayashankar et al 2014;Joseph 1966;Fernanda et al 2010). Apart from causing damage to the human health, A. fulica is also a carrier of several pathogens that infests different crops (Rudra et al 2009), thus damaging both the human health as well as agricultural crops.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of haplotype diversity of Achatina fulica (Lissachatina) [Bowdich] from Indian sub-continent by means of 16S rDNA sequence and its phylogenetic relationships with other global populations

Ayyagari

Sreerama

2017

3 Biotech

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Achatina fulica (Lissachatina fulica) is one of the most invasive species found across the globe causing a significant damage to crops, vegetables, and horticultural plants. This terrestrial snail is native to east Africa and spread to different parts of the world by introductions. India, a hot spot for biodiversity of several endemic gastropods, has witnessed an outburst of this snail population in several parts of the country posing a serious threat to crop loss and also to human health. With an objective to evaluate the genetic diversity of this snail, we have sampled this snail from different parts of India and analyzed its haplotype diversity by means of 16S rDNA sequence information. Apart from this, we have studied the phylogenetic relationships of the isolates sequenced in the present study in relation with other global populations by Bayesian and Maximum-likelihood approaches. Of the isolates sequenced, haplotype 'C' is the predominant one. A new haplotype 'S' from the state of Odisha was observed. The isolates sequenced in the present study clustered with its conspecifics from the Indian sub-continent. Haplotype network analyses were also carried out for studying the evolution of different haplotypes. It was observed that haplotype 'S' was associated with a Mauritius haplotype 'H', indicating the possibility of multiple introductions of A. fulica to India.

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Section: Introductionmentioning

confidence: 99%