Phylogenetic analysis of South American Berberis species and their related rust fungi
New races of both Puccinia graminis and P. striiformis are frequently reported throughout the world. Sexual recombination on a susceptible Berberis species host may have produced some of these new reported races, or could generate future new races. The two centers of diversity of simple-leaved Berbe...
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Boston, EE.UU: International Congress of Plant Pathology, 2018
2018
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ir-:41000-51142018-08-31T17:21:11Z Phylogenetic analysis of South American Berberis species and their related rust fungi Análisis filogenético de especies de Berberis de América del Sur y sus royas asociadas Barnes, Charles W. Hambleton, Sarah Ordóñez, María E. Fetch, Tom Chaves, M.S. Martinelli, J. Silva, G.B.P. da Bordignon, S. Campos, P. Gandullo, R. Madarlaga, R. Azzimonti, G. German, S. BERBERIS ROYA ANÁLISIS FILOGENÉTICO AMÉRICA DEL SUR New races of both Puccinia graminis and P. striiformis are frequently reported throughout the world. Sexual recombination on a susceptible Berberis species host may have produced some of these new reported races, or could generate future new races. The two centers of diversity of simple-leaved Berberis were separated in the Cretaceous period into South American and Asian populations. In South America there are two distinct subgroups: the Aequinoctiales and the Euaustrales. In 2016 and 2017, we sampled Berberis and Berberis infected with rust fungi in Ecuador belonging to the Aequinoctiales, and in Argentina, Brazil, Chile, and Uruguay belonging to the Euaustrales. DNA sequences from both the host and rust fungus were used for phylogeneti analysis. Within the Euaustrales Berberis, we collected B. laurina, B. microphylla, B. darwinii B. linearifolia, B. serrato-dentata, and an unknown Berberis species. Within the Aequinoctiales Berberis, we collected B. hallii, B. lutea, B. pichinchensis, B. grandiflora and two unknown Berberis species. Analyses of the rust ITS sequences suggested that at least 8 distinct species were collected. None were identified as either P. graminis or P. striiformis based on comparisons wi available reference DNA data while only one corresponded to a named species, Edythea quitensis (Ecuador). Most rust fungi had one Berberis host. More sampling is needed to rule out South American Berberis as a host for P. graminis or P. striiformis. Nuevas razas de Puccinia graminis y P. striiformis son reportadas frecuentemente en todo el mundo. La recombinación sexual en un hospedero susceptible de la especie Berberís pudo haber producido algunas de estas nuevas razas, o podría generar razas nuevas en el futuro. Los dos centros de diversidad de Berberís de hojas simples se separaron en el período Cretácico en poblaciones sudamericanas y asiáticas. En América del Sur hay dos subgrupos distintos: los Aequinoctiales y los Euaustrales. En 2016 y 2017 analizamos Berberís y Berberís infectadas con royas en Ecuador, pertenecientes a los Aequinoctiales, y en Argentina, Brasil, Chile y Uruguay, pertenecientes a los Euaustrales. Se usaron secuencias de ADN tanto del hospedero como de la roya para el análisis filogenético. Dentro de los Berberís Euaustrales se encontró a B. laurina, B. mícrophylla, B. daminii, B. linearifolía, B. serrato-dentata, y una especie de Berberís desconocida. Dentro de los Berberís Aequinoctiales se encontró a B. hallíí, B. lútea, B. pichínchensís, B. grandiflora y dos especies de Berberís desconocidas. Los análisis de las secuencias de ITS de las royas sugirieron que se encontró al menos 8 especies distintas. En base a comparaciones con los datos de ADN de referencia disponibles, ninguna muestra se identificó como P. graminis o P. striiformis, mientras que solo una correspondía a una especie nombrada, Edythea quítensis (Ecuador). La mayoría de las royas tenía cada una un hospedero Berberís. Se necesita más muestreo para descartar a Berberís de América del Sur como hospedero de P. graminis o P. striiformis. 2018-08-27T20:25:42Z 2018-08-27T20:25:42Z 2018-07-29 Congreso Poster *EC-INIAP-BEESC-MGC. Quito (INIAP/poster pdf6) http://repositorio.iniap.gob.ec/handle/41000/5114 en Atribución-NoComercial-SinDerivadas 3.0 Ecuador http://creativecommons.org/licenses/by-nc-nd/3.0/ec/ 1 p. application/pdf E. E. Santa Catalina Boston, EE.UU: International Congress of Plant Pathology, 2018 |
| institution |
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Repositorio INIAP |
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| topic |
BERBERIS ROYA ANÁLISIS FILOGENÉTICO AMÉRICA DEL SUR |
| spellingShingle |
BERBERIS ROYA ANÁLISIS FILOGENÉTICO AMÉRICA DEL SUR Barnes, Charles W. Hambleton, Sarah Ordóñez, María E. Fetch, Tom Chaves, M.S. Martinelli, J. Silva, G.B.P. da Bordignon, S. Campos, P. Gandullo, R. Madarlaga, R. Azzimonti, G. German, S. Phylogenetic analysis of South American Berberis species and their related rust fungi |
| description |
New races of both Puccinia graminis and P. striiformis are frequently reported throughout the world. Sexual recombination on a susceptible Berberis species host may have produced some of these new reported races, or could generate future new races. The two centers of diversity of simple-leaved Berberis were separated in the Cretaceous period into South American and Asian populations. In South America there are two distinct subgroups: the Aequinoctiales and the Euaustrales. In 2016 and 2017, we sampled Berberis and Berberis infected with rust fungi in Ecuador belonging to the Aequinoctiales, and in Argentina, Brazil, Chile, and Uruguay belonging to the Euaustrales. DNA sequences from both the host and rust fungus were used for phylogeneti analysis. Within the Euaustrales Berberis, we collected B. laurina, B. microphylla, B. darwinii B. linearifolia, B. serrato-dentata, and an unknown Berberis species. Within the Aequinoctiales Berberis, we collected B. hallii, B. lutea, B. pichinchensis, B. grandiflora and two unknown Berberis species. Analyses of the rust ITS sequences suggested that at least 8 distinct species were collected. None were identified as either P. graminis or P. striiformis based on comparisons wi available reference DNA data while only one corresponded to a named species, Edythea quitensis (Ecuador). Most rust fungi had one Berberis host. More sampling is needed to rule out South American Berberis as a host for P. graminis or P. striiformis. |
| author |
Barnes, Charles W. Hambleton, Sarah Ordóñez, María E. Fetch, Tom Chaves, M.S. Martinelli, J. Silva, G.B.P. da Bordignon, S. Campos, P. Gandullo, R. Madarlaga, R. Azzimonti, G. German, S. |
| author_facet |
Barnes, Charles W. Hambleton, Sarah Ordóñez, María E. Fetch, Tom Chaves, M.S. Martinelli, J. Silva, G.B.P. da Bordignon, S. Campos, P. Gandullo, R. Madarlaga, R. Azzimonti, G. German, S. |
| author_sort |
Barnes, Charles W. |
| title |
Phylogenetic analysis of South American Berberis species and their related rust fungi |
| title_short |
Phylogenetic analysis of South American Berberis species and their related rust fungi |
| title_full |
Phylogenetic analysis of South American Berberis species and their related rust fungi |
| title_fullStr |
Phylogenetic analysis of South American Berberis species and their related rust fungi |
| title_full_unstemmed |
Phylogenetic analysis of South American Berberis species and their related rust fungi |
| title_sort |
phylogenetic analysis of south american berberis species and their related rust fungi |
| publisher |
Boston, EE.UU: International Congress of Plant Pathology, 2018 |
| publishDate |
2018 |
| url |
http://repositorio.iniap.gob.ec/handle/41000/5114 |
| _version_ |
1635512019782205440 |
| score |
11,871979 |