Molecular Phylogenetics of Physa acuta : uma especie invasora no centro de Punjab, Paquistao
Physids belong to Class Gastropoda; belong to Phylum Mollusca and being bioindicators, intermediate hosts of parasites and pests hold a key position in the ecosystem. There are three species of Genus Physa i.e. P. fontinalis, Physa acuta and P. gyrina water bodies of Central Punjab and were characte...
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Veröffentlicht in: | Brazilian journal of biology 2023-01, Vol.83 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Physids belong to Class Gastropoda; belong to Phylum Mollusca and being bioindicators, intermediate hosts of parasites and pests hold a key position in the ecosystem. There are three species of Genus Physa i.e. P. fontinalis, Physa acuta and P. gyrina water bodies of Central Punjab and were characterized on the basis of molecular markers High level of genetic diversity was revealed by polymorphic RAPD, however SSR markers were not amplified. The multivariate analysis revealed polymorphism ranging from 9.09 percent to 50 percent among the three Physid species. Total number of 79 loci were observed for the three species under study and 24 loci were observed to be polymorphic. These RAPD fragment(s) can be developed into co dominant markers (SCAR) by cloning and can be further sequenced for the development of the Physa species specific markers to identify the introduced and native species in Pakistan. Keywords: mollusca, molecular marker, genetic diversity, polymorphism, physa. Os fisidos pertencem a classe Gastropoda; pertencem ao filo Mollusca e, sendo bioindicadores, hospedeiros intermediarios de parasitas e pragas, ocupam uma posicao-chave no ecossistema. Existem tres especies do genero Physa, ou seja, P. fontinalis, Physa acuta e P. gyrina em corpos d'agua do Punjab Central e foram caracterizadas com base em marcadores moleculares. Alto nivel de diversidade genetica foi revelado por RAPD polimorfico, no entanto os marcadores SSR nao foram amplificados. A analise multivariada revelou polimorfismo variando de 9,09% a 50% entre as tres especies de Physid. Um numero total de 79 loci foi observado para as tres especies em estudo e 24 loci foram observados como polimorficos. Esses fragmentos RAPD podem ser desenvolvidos em marcadores codominantes (SCAR) por clonagem e podem ser posteriormente sequenciados para o desenvolvimento de marcadores especificos da especie Physa para identificar as especies introduzidas e nativas no Paquistao. Palavras-chave: mollusca, marcador molecular, diversidade genetica, polimorfismo, physa. |
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ISSN: | 1519-6984 |
DOI: | 10.1590/1519-6984.246984 |