Untitled

Schneider, Bernd; Marcone, Carmine; Kampmann, Maren; Ragozzino, A.; Lederer, W. Jonathan; Mt, Cousin; Seemüller, E.

doi:10.1023/a:1008693314317

Cited by 58 publications

(18 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1). This tree and that calculated from a data set which included strains OY, TWB and RYD both exhibited branching orders similar to previously published trees (Gundersen et al, 1994;Liefting et al, 1996;Marcone et al, 1996;Schneider et al, 1995a).…”

Section: Phylogenetic Analysis Of 165 Rdna Sequencessupporting

confidence: 86%

“…1) supported the same major phylogenetic clusters identified by Schneider et al (1995a), and the phylogenetic subclades identified by Gundersen et al (1994) and R. E. .…”

Section: Phylogenetic Analysis Of 165 Rdna Sequencessupporting

confidence: 75%

“…In the phylogenetic analysis (Fig. l), PpYC was most closely related to tomato big bud strain TBB from Australia, within the peanut witches' broom subclade (subclade iii) described by Gundersen et al (1994), which corresponds to the faba bean phyllody strain cluster, cluster VI (Schneider et al, 1995a). PpYC, together with TBB, peanut witches' broom strain PnWB from Taiwan, sweet potato witches' broom strain SPWB from Taiwan, sunn hemp witches' broom strain SUNHP from Thailand and sweet potato little-leaf strain SPLL from Australia, form a clade (distance bootstrap value 97 %) distinct from lime witches' broom disease strain WBDL from Oman and faba bean phyllody strain FBP from Sudan (bootstrap value 100 YO) (Fig.…”

Section: Phylogenetic Analysis Of 165 Rdna Sequencesmentioning

confidence: 77%

“…Among the phytoplasmas, Seemuller et al (1994) identified five phylogenetic strain clusters, some of which could be divided into sub-groups. Schneider et al (1995a) later distinguished a sixth strain cluster. In an alternative classification, Gundersen et al (1994) identified 1 1 subclades within five strain clusters.…”

Section: Introductionmentioning

confidence: 97%

“…To date, the most reliable classifications of phytoplasmas have been based on DNA restriction analysis and phylogenetic sequence analysis, usually of the PCR-amplified 16s rRNA gene plus 16s-23s rRNA intergenic spacer region (R. E. ; R. I. Gundersen et al, 1994Gundersen et al, , 1996Lee et al, 1993;Namba et al, 1993;Schneider et al, 1993Schneider et al, , 1995aSeemuller et al, 1994). These analyses have allowed the provisional classification of phytoplasmas from Europe, North America, Asia and Australia.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Phylogenetic positions of phytoplasmas associated with dieback, yellow crinkle and mosaic diseases of papaya, and their proposed inclusion in ' Candidatus Phytoplasma australiense' and a new taxon, 'Candidatus Phytoplasma australasia'

White

Blackall

Scott

et al. 1998

International Journal of Systematic Bacteriology

117

View full text Add to dashboard Cite

DNA extracted from three papaya (Carica papaya L.) plants, individually affected by dieback, yellow crinkle or mosaic diseases, was subjected to PCR using phytoplasma-specific primers to amplify the 165 rRNA gene plus 165-235 rRNA intergenic spacer region. Near-complete DNA sequences obtained for the three PCR amplimers were subjected to phylogenetic analyses and direct sequence comparison with other phytoplasma 165 rDNA and 165-235 spacer region DNA sequences. The papaya yellow crinkle (PpYC) and papaya mosaic (PpM) sequences were identical to each other, but distinctly different from the papaya dieback (PpDB) sequence, showing 9003% identity in the 165 rDNA and 8708% identity in the 165-235 spacer region DNA sequences. A phylogenetic tree based on 165 rDNA sequences was calculated, in which PpYC and PpM are most closely related to the tomato big bud phytoplasma (TBB; 99.7% 165 rDNA sequence identity) from Australia, within subclade iii. This subclade consists of strains only reported occurring in the Southern Asian region and Australia, which indicates an Asian/Australasian origin. PpDB is most closely related to the Phormium yellow leaf phytoplasma from New Zealand (PYL; 99.9% identity) and the Australian grapevine yellows phytoplasma (AGY; 99.7 YO identity). These three phytoplasma strains form a distinct clade within subclade xii, which also includes the European strains STOL and VK as another distinct clade. The origin of the closely related but geographically separated AGY-like strains and STOL-like strains of subclade xii is unclear. It is proposed that phytoplasma strains PpDB, PYL and AGY be included in the previously described taxon Candidatus Phytoplasma australiense ' 8 and that PpYc, PpM and TBB be assigned to a new taxon, Candidatus Phytoplasma australasia I .

show abstract

Section: Phylogenetic Analysis Of 165 Rdna Sequencessupporting

confidence: 86%

“…1) supported the same major phylogenetic clusters identified by Schneider et al (1995a), and the phylogenetic subclades identified by Gundersen et al (1994) and R. E. .…”

Section: Phylogenetic Analysis Of 165 Rdna Sequencessupporting

confidence: 75%

Section: Phylogenetic Analysis Of 165 Rdna Sequencesmentioning

confidence: 77%

Section: Introductionmentioning

confidence: 97%