Mosaic fungal individuals have the potential to evolve within a single generation

Autor: Erica Mondo, Robert J. Doiron, Patrick Cabral, Michele Flannery, Lindsay Wiswell, Amy L. Shafrir, Diane Cope Peabody, Kathleen Salisbury, Amber C. Churchill, Carrie Peabody, Elisha Allan-Perkins, Darius Haghighat, Thomas Hernon, Daniel Lukason, Lauren Presti, Robert B. Peabody, Juan Carlos Ramirez-Tapia, Rachel G. Hirst, Kathryn Fallavollita, Lynes Torres, Benjamin Seidel, Magdalena James-Pederson, Sarah Wilson, Maura Geens Tyrrell, Kelsey McKenna-Hoffman, Heather Bickford, Kaitlin Daly
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Scientific Reports, Vol 10, Iss 1, Pp 1-13 (2020)
Scientific Reports
ISSN: 2045-2322
DOI: 10.1038/s41598-020-74679-5
Popis: Although cells of mushroom-producing fungi typically contain paired haploid nuclei (n + n), most Armillaria gallica vegetative cells are uninucleate. As vegetative nuclei are produced by fusions of paired haploid nuclei, they are thought to be diploid (2n). Here we report finding haploid vegetative nuclei in A. gallica at multiple sites in southeastern Massachusetts, USA. Sequencing multiple clones of a single-copy gene isolated from single hyphal filaments revealed nuclear heterogeneity both among and within hyphae. Cytoplasmic bridges connected hyphae in field-collected and cultured samples, and we propose nuclear migration through bridges maintains this nuclear heterogeneity. Growth studies demonstrate among- and within-hypha phenotypic variation for growth in response to gallic acid, a plant-produced antifungal compound. The existence of both genetic and phenotypic variation within vegetative hyphae suggests that fungal individuals have the potential to evolve within a single generation in response to environmental variation over time and space.
Databáze: OpenAIRE
Externí odkaz:
Nepřihlášeným uživatelům se plný text nezobrazuje