CiteULike

Delicious

Connotea

Citation for Study 15347

Citation title: "Macruropyxis fulva sp. nov., a new rust (Pucciniales) infecting sugarcane in southern Africa".

Study name: "Macruropyxis fulva sp. nov., a new rust (Pucciniales) infecting sugarcane in southern Africa".

This study is part of submission 15347 (Status: Published).

Citation

Martin L.A., Lloyd evans D., Castlebury L.A., Sifundza J.T., Comstock J.C., Rutherford R.S., & Mcfarlane S.A. 2016. Macruropyxis fulva sp. nov., a new rust (Pucciniales) infecting sugarcane in southern Africa. Australasian Plant Pathology Journal, .

Authors

• Martin L.A. (submitter) +27315087530
• Lloyd evans D.
• Castlebury L.A. 3015045270
• Sifundza J.T.
• Comstock J.C.
• Rutherford R.S.
• Mcfarlane S.A.

Abstract

An unknown species of rust was observed on sugarcane in Swaziland and South Africa in 2008. Infected leaves showed rust-like symptoms on the lower and upper leaf surfaces. Uredinia appeared bright orange when fresh, releasing profuse, bright orange urediniospores, which distinguished it from Puccinia melanocephala, the only rust species known to infect sugarcane in southern Africa at that time. No identical matches were obtained from the NCBI database for the combined ITS and 28S nuclear large subunit (nLSU) regions for the unknown rust. Phylogenetic analyses based on the same gene region showed that this rust was closely related to Macruropyxis fraxini and Puccinia sparganioides, which infect Fraxinus spp. (Oleaceae). Also closely related were Aecidium klugkistianum, P. mysuruensis, and P. physalidis which infect host species in the Oleaceae, Rubiaceae, and Solanaceae, respectively. This group of rusts is phylogenetically distinct from both Puccinia melanocephala and Puccinia kuehnii, which cause brown and orange rust of sugarcane, respectively. Phylogenetic reconstruction showed that the unknown rust falls outside the Puccinia I and II clades and groups with the Macruropyxis clade with strong bootstrap support. Hence the name proposed for this newly discovered rust species is Macruropyxis fulva sp. nov., causal agent of tawny rust of sugarcane. A rust observed to be infecting Miscanthus ecklonii in 2016 matched the accessioned M. fulva sp. nov. sequences and was morphologically and genetically distinct from Miscanthus rust Puccinia miscanthidii, providing evidence of an alternate host for M. fulva sp. nov.

Keywords

sugarcane, rust, Macruropyxis, Puccinia melanocephala, Puccinia kuehnii, Miscanthus ecklonii, gene sequencing, phylogenetics

External links

About this resource

• Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S15347
• Other versions: Nexus NeXML
• Show BibTeX reference

  		@ARTICLE{TreeBASE2Ref25944,
  	 author = {Lauren Anne Martin and Dyfed  Lloyd Evans and Lisa A Castlebury and Jabulani T Sifundza and Jack  C Comstock and Richard Stuart Rutherford and Sharon Anne McFarlane},
  	 title = {Macruropyxis fulva sp. nov., a new rust (Pucciniales) infecting sugarcane in southern Africa},
  	 year = {2016},
  	 keywords = {sugarcane, rust, Macruropyxis, Puccinia melanocephala, Puccinia kuehnii, Miscanthus ecklonii, gene sequencing, phylogenetics},
  	 doi = {},
  	 url = {http://},
  	 pmid = {},
  	 journal = {Australasian Plant Pathology Journal},
  	 volume = {},
  	 number = {},
  	 pages = {},
  	 abstract = {An unknown species of rust was observed on sugarcane in Swaziland and South Africa in 2008. Infected leaves showed rust-like symptoms on the lower and upper leaf surfaces. Uredinia appeared bright orange when fresh, releasing profuse, bright orange urediniospores, which distinguished it from Puccinia melanocephala, the only rust species known to infect sugarcane in southern Africa at that time. No identical matches were obtained from the NCBI database for the combined ITS and 28S nuclear large subunit (nLSU) regions for the unknown rust.  Phylogenetic analyses based on the same gene region showed that this rust was closely related to Macruropyxis fraxini and Puccinia sparganioides, which infect Fraxinus spp. (Oleaceae). Also closely related were Aecidium klugkistianum, P. mysuruensis, and P. physalidis which infect host species in the Oleaceae, Rubiaceae, and Solanaceae, respectively. This group of rusts is phylogenetically distinct from both Puccinia melanocephala and Puccinia kuehnii, which cause brown and orange rust of sugarcane, respectively. Phylogenetic reconstruction showed that the unknown rust falls outside the Puccinia I and II clades and groups with the Macruropyxis clade with strong bootstrap support. Hence the name proposed for this newly discovered rust species is Macruropyxis fulva sp. nov., causal agent of tawny rust of sugarcane. A rust observed to be infecting Miscanthus ecklonii in 2016 matched the accessioned M. fulva sp. nov. sequences and was morphologically and genetically distinct from Miscanthus rust Puccinia miscanthidii, providing evidence of an alternate host for M. fulva sp. nov.}
  }
  		

• Show RIS reference

  		TY  - JOUR
  ID  - 25944
  AU  - Martin,Lauren Anne
  AU  - Lloyd Evans,Dyfed 
  AU  - Castlebury,Lisa A
  AU  - Sifundza,Jabulani T
  AU  - Comstock,Jack  C
  AU  - Rutherford,Richard Stuart
  AU  - McFarlane,Sharon Anne
  T1  - Macruropyxis fulva sp. nov., a new rust (Pucciniales) infecting sugarcane in southern Africa
  PY  - 2016
  KW  - sugarcane
  KW  - rust
  KW  - Macruropyxis
  KW  - Puccinia melanocephala
  KW  - Puccinia kuehnii
  KW  - Miscanthus ecklonii
  KW  - gene sequencing
  KW  - phylogenetics
  UR  - http://dx.doi.org/
  N2  - An unknown species of rust was observed on sugarcane in Swaziland and South Africa in 2008. Infected leaves showed rust-like symptoms on the lower and upper leaf surfaces. Uredinia appeared bright orange when fresh, releasing profuse, bright orange urediniospores, which distinguished it from Puccinia melanocephala, the only rust species known to infect sugarcane in southern Africa at that time. No identical matches were obtained from the NCBI database for the combined ITS and 28S nuclear large subunit (nLSU) regions for the unknown rust.  Phylogenetic analyses based on the same gene region showed that this rust was closely related to Macruropyxis fraxini and Puccinia sparganioides, which infect Fraxinus spp. (Oleaceae). Also closely related were Aecidium klugkistianum, P. mysuruensis, and P. physalidis which infect host species in the Oleaceae, Rubiaceae, and Solanaceae, respectively. This group of rusts is phylogenetically distinct from both Puccinia melanocephala and Puccinia kuehnii, which cause brown and orange rust of sugarcane, respectively. Phylogenetic reconstruction showed that the unknown rust falls outside the Puccinia I and II clades and groups with the Macruropyxis clade with strong bootstrap support. Hence the name proposed for this newly discovered rust species is Macruropyxis fulva sp. nov., causal agent of tawny rust of sugarcane. A rust observed to be infecting Miscanthus ecklonii in 2016 matched the accessioned M. fulva sp. nov. sequences and was morphologically and genetically distinct from Miscanthus rust Puccinia miscanthidii, providing evidence of an alternate host for M. fulva sp. nov.
  L3  - 
  JF  - Australasian Plant Pathology Journal
  VL  - 
  IS  - 
  ER  -