Fungal Genomics & Biology

Fungal Genomics & Biology
Open Access

ISSN: 2165-8056

+44 1223 790975

Rytas Vilgalys

Rytas Vilgalys

United Kingdom

  • Research Article
    Genetic Structure within Septobasidium Colonies Suggests Outcrossing and Frequent Non Self-Fusion
    Author(s): Daniel A Henk and Rytas VilgalysDaniel A Henk and Rytas Vilgalys

    Abstract Fungi in the genus Septobasidium form colonies that envelop and infect multiple scale insects. Infection of each insect is thought to occur only via meiotic basidiospores. In this study, we investigated the genetic status of colonies by genotyping different phases of the Septobasidium life cycle including single spore isolates, mature colony tissue isolates, and infected insects. Meiotic analyses showed segregation of two alleles at multiple loci among the progeny from a single fungal colony. Genotyping of multiple tissue isolates demonstrated that individual Septobasidium colonies were composed of a single heterozygous dikaryotic mycelium. Fungi from insects fused to a colony of S. ramorum had identical genotypes to each other, but insects not yet fused to a colony sometimes had unique genotypes. Based on these studies, Septobasidium specie.. View More»
    DOI: 10.4172/2165-8056.1000143

    Abstract PDF

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