New resistance genes in the Zea mays: exserohilum turcicum pathosystem
The use of monogenic race-specific resistance is widespread for the control of maize (Zea mays L.) helminthosporiosis caused by Exserohilum turcicum. Inoculation of 18 Brazilian isolates of E. turcicum onto elite maize lines containing previously identified resistance genes and onto differential nea...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Genética
2005-09-01
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| Series: | Genetics and Molecular Biology |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000300017 |
| _version_ | 1818242258302926848 |
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| author | Juliana Bernardi Ogliari Marco Antônio Guimarães Isaías Olívio Geraldi Luis Eduardo Aranha Camargo |
| author_facet | Juliana Bernardi Ogliari Marco Antônio Guimarães Isaías Olívio Geraldi Luis Eduardo Aranha Camargo |
| author_sort | Juliana Bernardi Ogliari |
| collection | DOAJ |
| description | The use of monogenic race-specific resistance is widespread for the control of maize (Zea mays L.) helminthosporiosis caused by Exserohilum turcicum. Inoculation of 18 Brazilian isolates of E. turcicum onto elite maize lines containing previously identified resistance genes and onto differential near-isogenic lines allowed the identification of new qualitative resistance genes. The inoculation of one selected isolate on differential near-isogenic lines, F1 generations and a BC1F1 population from the referred elite lines enabled the characterization of the resistance spectrum of three new genes, one dominant (HtP), one recessive (rt) and a third with non-identified genetic action. Three physiological races of the pathogen were also identified including two with new virulence factors capable of overcoming the resistance of one of the resistance genes identified here (rt). |
| first_indexed | 2024-12-12T13:42:22Z |
| format | Article |
| id | doaj.art-72eb208929d6417d840270af9a75db0f |
| institution | Directory Open Access Journal |
| issn | 1415-4757 1678-4685 |
| language | English |
| last_indexed | 2024-12-12T13:42:22Z |
| publishDate | 2005-09-01 |
| publisher | Sociedade Brasileira de Genética |
| record_format | Article |
| series | Genetics and Molecular Biology |
| spelling | doaj.art-72eb208929d6417d840270af9a75db0f2022-12-22T00:22:45ZengSociedade Brasileira de GenéticaGenetics and Molecular Biology1415-47571678-46852005-09-0128343543910.1590/S1415-47572005000300017New resistance genes in the Zea mays: exserohilum turcicum pathosystemJuliana Bernardi OgliariMarco Antônio GuimarãesIsaías Olívio GeraldiLuis Eduardo Aranha CamargoThe use of monogenic race-specific resistance is widespread for the control of maize (Zea mays L.) helminthosporiosis caused by Exserohilum turcicum. Inoculation of 18 Brazilian isolates of E. turcicum onto elite maize lines containing previously identified resistance genes and onto differential near-isogenic lines allowed the identification of new qualitative resistance genes. The inoculation of one selected isolate on differential near-isogenic lines, F1 generations and a BC1F1 population from the referred elite lines enabled the characterization of the resistance spectrum of three new genes, one dominant (HtP), one recessive (rt) and a third with non-identified genetic action. Three physiological races of the pathogen were also identified including two with new virulence factors capable of overcoming the resistance of one of the resistance genes identified here (rt).http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000300017Northern leaf blightgenetic inheritanceresistance genesracesmaize |
| spellingShingle | Juliana Bernardi Ogliari Marco Antônio Guimarães Isaías Olívio Geraldi Luis Eduardo Aranha Camargo New resistance genes in the Zea mays: exserohilum turcicum pathosystem Genetics and Molecular Biology Northern leaf blight genetic inheritance resistance genes races maize |
| title | New resistance genes in the Zea mays: exserohilum turcicum pathosystem |
| title_full | New resistance genes in the Zea mays: exserohilum turcicum pathosystem |
| title_fullStr | New resistance genes in the Zea mays: exserohilum turcicum pathosystem |
| title_full_unstemmed | New resistance genes in the Zea mays: exserohilum turcicum pathosystem |
| title_short | New resistance genes in the Zea mays: exserohilum turcicum pathosystem |
| title_sort | new resistance genes in the zea mays exserohilum turcicum pathosystem |
| topic | Northern leaf blight genetic inheritance resistance genes races maize |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000300017 |
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