| Popis: |
Among the root-knot nematodes three Meloidogyne species namely Meloidogyne incognita, M. javanica, and M. arenaria are emerging as an important pest of many cultivated plants, and recognized as the most economically destructive plant parasitic nematodes species of all over the world. Although other root-knot nematodes may virulent for plant but limited information is available. Thus, a comprehensive bioinformatics analysis including sequence acquisition, multiple sequence alignment and the phylogenetic tree construction for well-known Meloidogyne species was employed to predict the emerging virulent species. About eighty seven (87) 18S rRNA sequences of three damaging Meloidogyne species (M. javanica, M. arenaria and M. incognita) were retrieved from NCBI database, and allowed to construct phylogenetic trees using both NJ and ME methods of Molecular Evolution Genetic Analysis (MEGA) tools. Phylogeny analysis revealed that M. enterolobii_1, M. sp._Mi_c3a, M. sp_Mj_c1a and M._sp._Mj_c3a are genetically as well as evolutionally related to existing well recognized virulent nematodes. Moreover, evolutionally emerging strains of existing virulent species of M. javanica, M. arenaria and M. incognita along with the predicted virulence nematodes could become a great challenge to agriculture. The study could initiate the further analysis for novel insights in the pathogenesis of emerging virulence species of Meloidogyne that must be needed for future crop management strategies. |
