2012
DOI: 10.1111/j.1365-3059.2011.02572.x
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Wide genetic diversity of Ralstonia solanacearum strains affecting tomato in Trinidad, West Indies

Abstract: The genetic diversity of Ralstonia solanacearum causing bacterial wilt of tomato in Trinidad was assessed using the hierarchical phylotyping scheme and rep-PCR DNA fingerprinting. Seventy-one isolates were collected in 2003 on infected tomato crops in the four main vegetable cropping areas of Trinidad (North, Central, South-East and South). Two phylotypes were present, with phylotype II being much more prevalent (66%) than phylotype I (34%). Phylotype II strains consisted mainly of sequevar 7 in Central and So… Show more

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Cited by 26 publications
(19 citation statements)
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“…Most Brazilian isolates of R. solanacearum (84%) belonged to phylotype II, although phylotype I isolates were also detected. The occurrence of isolates corresponding to more than one phylotype has been reported in different countries and is usually attributed to effective dispersal processes (Sanchez Perez et al ., ; Ramsubhag et al ., ). Overall, the percentages of phylotypes I, IIA and IIB isolates in Brazil were similar to those reported in other Latin American countries.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Most Brazilian isolates of R. solanacearum (84%) belonged to phylotype II, although phylotype I isolates were also detected. The occurrence of isolates corresponding to more than one phylotype has been reported in different countries and is usually attributed to effective dispersal processes (Sanchez Perez et al ., ; Ramsubhag et al ., ). Overall, the percentages of phylotypes I, IIA and IIB isolates in Brazil were similar to those reported in other Latin American countries.…”
Section: Discussionmentioning
confidence: 99%
“…The diversity of R . solanacearum in South America and in the Caribbean has been studied in Venezuela (García et al ., ), Colombia (Cardozo et al ., ), Uruguay (Siri et al ., ), French Guiana (Deberdt et al ., ), Brazil (Pinheiro et al ., ; Santana et al ., ; Garcia et al ., ; Albuquerque et al ., ), Martinique (Wicker et al ., ) and Trinidad and Tobago (Ramsubhag et al ., ). In Brazil, the most recent study (Albuquerque et al ., ) was conducted using banana and potato isolates obtained from small areas.…”
Section: Introductionmentioning
confidence: 99%
“…However, all these studies focused only on large scales and did not pay particular attention to how microevolution acted on the field scale. Until now, field-scale studies focusing on RSSC genetic diversity were achieved only with markers with poor interlaboratory portability (RAPD [50], REP-PCR [51,53], and AFLP [54,55]). In this study, we decided to develop a new MLVA scheme, as VNTR loci have already proved their use in field-scale microevolution studies of plant-pathogenic bacterial epidemics, e.g., for local populations of Xanthomonas citri pv.…”
Section: Discussionmentioning
confidence: 99%
“…Until now, only two studies have addressed the population genetic structure on a local scale. The first one was conducted in India by using RAPD markers (50), and the second was performed on Trinidad Island by using repetitive sequence-based PCR (REP-PCR) (51). Unfortunately, the low repeatability and reproducibility with RAPD markers make the results difficult to interpret, and REP-PCR portability between laboratories remains problematic (6).…”
Section: Importancementioning
confidence: 99%
“…of more than 50 botanical families that represent more than 200 plant species, including tomato, potato, eggplant, pepper, peanut, tobacco, banana, groundnut, olive, and ginger (Genin, 2010;Ramsubhag et al, 2012;Vu et al, 2013).…”
mentioning
confidence: 99%