Comparative genomics and phylogenomics of the Ralstonia solanacearum Moko ecotype and its symptomatological variants



Título del documento: Comparative genomics and phylogenomics of the Ralstonia solanacearum Moko ecotype and its symptomatological variants
Revista: Genetics and molecular biology
Base de datos: PERIÓDICA
Número de sistema: 000459276
ISSN: 1415-4757
Autores: 1
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Instituciones: 1Universidade Federal Rural de Pernambuco, Departamento de Agronomia, Recife, Pernambuco. Brasil
2Universidade Federal de Pernambuco, Departamento de Genetica, Recife, Pernambuco. Brasil
3Universidade Federal de Alagoas, Departamento de Agronomia, Maceio, Alagoas. Brasil
4Universidade Federal Rural de Pernambuco, Departamento de Biologia, Recife, Pernambuco. Brasil
Año:
Volumen: 45
Número: 4
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, analítico
Resumen en inglés Banana tree bacterial wilt is caused by the Ralstonia solanacearum Moko ecotype. These strains vary in their symptom progression in banana, and are classified as typical Moko variants (phylotype IIA and IIB strains from across Central and South America), Bugtok variant (Philippines), and Sergipe facies (the states of Sergipe and Alagoas, Brazil). This study used comparative genomic and phylogenomic approaches to identify a correlation between the symptom progression of the Moko ecotypes based on the analysis of 23 available genomes. Average nucleotide identity and in silico DNA-DNA hybridization revealed a high correlation (>96% and >78%, respectively) between the genomes of Moko variants. Pan-genome analysis identified 21.3% of inheritable regions between representatives of the typical Moko and Sergipe facies variants, which could be traced to an abundance of exclusive homolog clusters. Moko ecotype genomes shared 1,951 orthologous genes, but representatives with typical symptoms did not display unique orthologues. Moreover, Bugtok disease and Sergipe facies genomes did not share any unique genes, suggesting convergent evolution to a shared symptom progression. Overall, genomic and phylogenomic analyses were insufficient to differentiate the Moko variants based on symptom progression
Disciplinas: Biología
Palabras clave: Bacterias,
Genética,
Fitopatología,
Ralstonia solanacearum,
Plátano,
Musa,
Filogenómica,
Genómica
Keyword: Bacteria,
Genetics,
Phytopathology,
Ralstonia solanacearum,
Banana,
Musa,
Genomics,
Phylogenomics
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