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Registro Completo |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
20/04/2012 |
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Data da última atualização: |
23/05/2012 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
WICKERT, E.; LEMOS, E. G. M.; KISHI, L. T.; SOUZA, A.; GOES, A. |
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Afiliação: |
Epagri |
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Título: |
Genetic Diversity and Population Differentiation of Guignardia mangiferae from Tahiti Acid Lime. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
The Scientific World Journal, Estados Unidos, v. 2012, p. 1-11, 2012. |
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Idioma: |
Inglês |
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Notas: |
ISSN, 1537-744X |
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Conteúdo: |
One of the most important diseases that affect sweet orange orchards in Brazil is the Citrus Black Spot that is caused by the fungus Guignardia citricarpa. This disease causes irreparable losses due to the premature falling of fruit, as well as its severe effects on the
epidermis of ripe fruit that renders them unacceptable at the fresh fruit markets. Despite the fact that the fungus and the disease are well studied, little is known about the genetic diversity and the structure of the fungi populations in Brazilian orchards. The objective
of this work was study the genetic diversity and population differentiation of G. citricarpa associated with four sweet orange varieties in two geographic locations using DNA sequence of ITS1-5.8S-ITS2 region from fungi isolates.We observed that different
populations are closely related and present little genetic structure according to varieties and geographic places with the highest genetic diversity distributed among isolates of the same populations. The same haplotypes were sampled in different populations
from the same and different orange varieties and from similar and different origins. If new and pathogenic fungi would become resistant to fungicides, the observed genetic structure could rapidly spread this new form from one population to others.
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Palavras-Chave: |
Genetic diversity; Population structure. |
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Categoria do assunto: |
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Marc: |
LEADER 01795naa a2200157 a 4500
001 1081504
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008 2012 bl uuuu u00u1 u #d
100 1 $aEpagri
245 $aGenetic Diversity and Population Differentiation of Guignardia mangiferae from Tahiti Acid Lime.
260 $c2012
500 $aISSN, 1537-744X
520 $aOne of the most important diseases that affect sweet orange orchards in Brazil is the Citrus Black Spot that is caused by the fungus Guignardia citricarpa. This disease causes irreparable losses due to the premature falling of fruit, as well as its severe effects on the epidermis of ripe fruit that renders them unacceptable at the fresh fruit markets. Despite the fact that the fungus and the disease are well studied, little is known about the genetic diversity and the structure of the fungi populations in Brazilian orchards. The objective of this work was study the genetic diversity and population differentiation of G. citricarpa associated with four sweet orange varieties in two geographic locations using DNA sequence of ITS1-5.8S-ITS2 region from fungi isolates.We observed that different populations are closely related and present little genetic structure according to varieties and geographic places with the highest genetic diversity distributed among isolates of the same populations. The same haplotypes were sampled in different populations from the same and different orange varieties and from similar and different origins. If new and pathogenic fungi would become resistant to fungicides, the observed genetic structure could rapidly spread this new form from one population to others.
653 $aGenetic diversity
653 $aPopulation structure
773 $tThe Scientific World Journal, Estados Unidos$gv. 2012, p. 1-11, 2012.
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