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Putative natural hybrid between Puccinia lagenophorae and an unknown rust fungus on Senecio madagascariensis in KwaZulu-Natal, South Africa.
Mycol Res. 2009 Jun-Jul; 113(Pt 6-7):725-36.MR

Abstract

Several specimens of an aecial rust fungus were collected on Senecio madagascariensis during a field survey carried out in KwaZulu-Natal, South Africa. As telia were not present in the specimens collected, DNA sequence analyses were undertaken to determine the identity of the rust species. ITS and beta-tub1 sequencing confirmed that one of the isolates recovered is Puccinia lagenophorae sensu lato. On the other hand, sequencing and RFLP analysis revealed the presence of two divergent copies of ITS and beta-tub1 in all the other six isolates investigated. In both phylogenetic trees, one copy of the gene region grouped within a well supported clade with sequences of P. lagenophorae accessions from different geographical origins and hosts, and the Australian rusts Puccinia saccardoi and Puccinia stylidii. The other copy of these gene regions grouped within a separate clade comprising European accessions of Puccinia dioicae (ITS) and Uromyces sommerfeltii (beta-tub1) that occur on Asteraceae hosts. Multiple copies of these gene regions were not observed in Australian isolates of P. lagenophorae. Our study provides some evidence that an interspecific hybrid rust fungus, with P. lagenophorae as one of its parents, may occur on S. madagascariensis in South Africa. The identity of the other parent remains unknown.

Authors+Show Affiliations

CSIRO Entomology, Cooperative Research Centre for Australian Weed Management, GPO Box 1700, Canberra, Australian Capital Territory 2601, Australia. louise.morin@csiro.auNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19249359

Citation

Morin, Louise, et al. "Putative Natural Hybrid Between Puccinia Lagenophorae and an Unknown Rust Fungus On Senecio Madagascariensis in KwaZulu-Natal, South Africa." Mycological Research, vol. 113, no. Pt 6-7, 2009, pp. 725-36.
Morin L, van der Merwe M, Hartley D, et al. Putative natural hybrid between Puccinia lagenophorae and an unknown rust fungus on Senecio madagascariensis in KwaZulu-Natal, South Africa. Mycol Res. 2009;113(Pt 6-7):725-36.
Morin, L., van der Merwe, M., Hartley, D., & Müller, P. (2009). Putative natural hybrid between Puccinia lagenophorae and an unknown rust fungus on Senecio madagascariensis in KwaZulu-Natal, South Africa. Mycological Research, 113(Pt 6-7), 725-36. https://doi.org/10.1016/j.mycres.2009.02.008
Morin L, et al. Putative Natural Hybrid Between Puccinia Lagenophorae and an Unknown Rust Fungus On Senecio Madagascariensis in KwaZulu-Natal, South Africa. Mycol Res. 2009 Jun-Jul;113(Pt 6-7):725-36. PubMed PMID: 19249359.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Putative natural hybrid between Puccinia lagenophorae and an unknown rust fungus on Senecio madagascariensis in KwaZulu-Natal, South Africa. AU - Morin,Louise, AU - van der Merwe,Marlien, AU - Hartley,Diana, AU - Müller,Petra, Y1 - 2009/02/26/ PY - 2008/06/25/received PY - 2009/01/07/revised PY - 2009/02/18/accepted PY - 2009/3/3/entrez PY - 2009/3/3/pubmed PY - 2009/6/13/medline SP - 725 EP - 36 JF - Mycological research JO - Mycol Res VL - 113 IS - Pt 6-7 N2 - Several specimens of an aecial rust fungus were collected on Senecio madagascariensis during a field survey carried out in KwaZulu-Natal, South Africa. As telia were not present in the specimens collected, DNA sequence analyses were undertaken to determine the identity of the rust species. ITS and beta-tub1 sequencing confirmed that one of the isolates recovered is Puccinia lagenophorae sensu lato. On the other hand, sequencing and RFLP analysis revealed the presence of two divergent copies of ITS and beta-tub1 in all the other six isolates investigated. In both phylogenetic trees, one copy of the gene region grouped within a well supported clade with sequences of P. lagenophorae accessions from different geographical origins and hosts, and the Australian rusts Puccinia saccardoi and Puccinia stylidii. The other copy of these gene regions grouped within a separate clade comprising European accessions of Puccinia dioicae (ITS) and Uromyces sommerfeltii (beta-tub1) that occur on Asteraceae hosts. Multiple copies of these gene regions were not observed in Australian isolates of P. lagenophorae. Our study provides some evidence that an interspecific hybrid rust fungus, with P. lagenophorae as one of its parents, may occur on S. madagascariensis in South Africa. The identity of the other parent remains unknown. SN - 1469-8102 UR - https://www.unboundmedicine.com/medline/citation/19249359/Putative_natural_hybrid_between_Puccinia_lagenophorae_and_an_unknown_rust_fungus_on_Senecio_madagascariensis_in_KwaZulu_Natal_South_Africa_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0953-7562(09)00050-1 DB - PRIME DP - Unbound Medicine ER -