Tags

Type your tag names separated by a space and hit enter

Are the microcyclic rust species Puccinia melampodii and Puccinia xanthii conspecific?
Mycol Res. 2009 Nov; 113(Pt 11):1271-82.MR

Abstract

The taxonomic relationship between two microcyclic rust species, Puccinia melampodii and Puccinia xanthii, recorded from a number of Asteraceae hosts, was explored by comparing teliospore morphology, host specificity and sequence data. Teliospore morphology varied between and within individual rust accessions but, in general, teliospores of P. xanthii were larger than those of P. melampodii. Field observations and cross-inoculation greenhouse studies showed that P. melampodii accessions were highly specific to their original host species and unable to establish compatible interactions with related Asteraceae species. Though small amounts of genetic variation were detected between P. melampodii and P. xanthii accessions, the ITS and TEF phylogenetic analyses comprising several other rust species grouped these accessions within a well supported clade. Our data indicate that despite differences between P. xanthii and P. melampodii accessions these rusts cannot readily be separated at the species level, supporting earlier taxonomic conclusions and the recent proposal to group them into a morphospecies. Based on host-specificity data, the name Puccinia xanthii var. parthenii-hysterophorae is proposed to accommodate all Mesoamerican records of P. melampodii associated with the host Parthenium hysterophorus.

Authors+Show Affiliations

CABI Europe-UK, Egham, Surrey, UK. m.seier@cabi.orgNo affiliation info availableNo 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

19695329

Citation

Seier, Marion K., et al. "Are the Microcyclic Rust Species Puccinia Melampodii and Puccinia Xanthii Conspecific?" Mycological Research, vol. 113, no. Pt 11, 2009, pp. 1271-82.
Seier MK, Morin L, van der merwe M, et al. Are the microcyclic rust species Puccinia melampodii and Puccinia xanthii conspecific? Mycol Res. 2009;113(Pt 11):1271-82.
Seier, M. K., Morin, L., van der merwe, M., Evans, H. C., & Romero, A. (2009). Are the microcyclic rust species Puccinia melampodii and Puccinia xanthii conspecific? Mycological Research, 113(Pt 11), 1271-82. https://doi.org/10.1016/j.mycres.2009.08.009
Seier MK, et al. Are the Microcyclic Rust Species Puccinia Melampodii and Puccinia Xanthii Conspecific. Mycol Res. 2009;113(Pt 11):1271-82. PubMed PMID: 19695329.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Are the microcyclic rust species Puccinia melampodii and Puccinia xanthii conspecific? AU - Seier,Marion K, AU - Morin,Louise, AU - van der merwe,Marlien, AU - Evans,Harry C, AU - Romero,Angel, Y1 - 2009/08/18/ PY - 2008/08/01/received PY - 2009/07/07/revised PY - 2009/08/10/accepted PY - 2009/8/22/entrez PY - 2009/8/22/pubmed PY - 2010/4/9/medline SP - 1271 EP - 82 JF - Mycological research JO - Mycol Res VL - 113 IS - Pt 11 N2 - The taxonomic relationship between two microcyclic rust species, Puccinia melampodii and Puccinia xanthii, recorded from a number of Asteraceae hosts, was explored by comparing teliospore morphology, host specificity and sequence data. Teliospore morphology varied between and within individual rust accessions but, in general, teliospores of P. xanthii were larger than those of P. melampodii. Field observations and cross-inoculation greenhouse studies showed that P. melampodii accessions were highly specific to their original host species and unable to establish compatible interactions with related Asteraceae species. Though small amounts of genetic variation were detected between P. melampodii and P. xanthii accessions, the ITS and TEF phylogenetic analyses comprising several other rust species grouped these accessions within a well supported clade. Our data indicate that despite differences between P. xanthii and P. melampodii accessions these rusts cannot readily be separated at the species level, supporting earlier taxonomic conclusions and the recent proposal to group them into a morphospecies. Based on host-specificity data, the name Puccinia xanthii var. parthenii-hysterophorae is proposed to accommodate all Mesoamerican records of P. melampodii associated with the host Parthenium hysterophorus. SN - 1469-8102 UR - https://www.unboundmedicine.com/medline/citation/19695329/Are_the_microcyclic_rust_species_Puccinia_melampodii_and_Puccinia_xanthii_conspecific L2 - https://linkinghub.elsevier.com/retrieve/pii/S0953-7562(09)00154-3 DB - PRIME DP - Unbound Medicine ER -