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Genome size estimates for six rust (Pucciniales) species

Estimativa do tamanho do genoma de seis espécies de ferrugens (Pucciniales)
Authors: Talhinhas, Pedro; Ramos, Ana Paula; Tavares, Daniela; Tavares, Sílvia; Loureiro, João;

Genome size estimates for six rust (Pucciniales) species

Abstract

Os fungos que causam ferrugens caraterizam-se pela especialização relativamente ao hospedeiro, pela biotrofia, por possuírem ciclos de vida complexos e grandes genomas. Neste trabalho a citometria de fluxo foi empregue para determinar o tamanho do genoma de seis espécies de fungos Pucciniales (Basidiomycota), Melampsora pulcherrima, Puccinia behenis, P. cichorii, P. pimpinellae, P. vincae e Uromyces dianthi, agentes causais de ferrugem em Mercurialis annua, Silene latifolia, Cichorium intybus, Pimpinella villosa, Vinca major e Dianthus caryophyllus, respetivamente. Com resultados entre 182,1 e 566,4 Mpb/1C, este estudo contribuiu para o conhecimento do tamanho dos genomas na ordem Pucciniales, reforçando a posição deste táxone como o que engloba os fungos com maior tamanho médio de genoma (335,6 Mpb/1C). Este estudo contribui para uma melhor compreensão dos padrões de distribuição de tamanhos de genoma ao longo da filogenia dos fungos, sugerindo uma ligação entre caraterísticas biológicas e o tamanho do genoma. Em particular, os tamanhos dos genomas de fungos Pucciniales variam fortemente dentro do género, mas também diferem de forma vincada dos genomas de outras ordens em Pucciniomycotina que não Pucciniales, sugerindo que a variação do tamanho do genoma possa ser um elemento ativo na evolução dos agentes causais de ferrugens.

Revista de Ciências Agrárias, vol. 38 n.º 2 (2015)

Country
Portugal
Keywords

cytogenomics, citometria de fluxo, flow cytometry, ferrugem, genome size, Fungi, citogenómica, rust, fungi, tamanho de genoma

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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