scholarly journals The Evolutionary Imprint of Domestication on Genome Variation and Function of the Filamentous Fungus Aspergillus oryzae

2012 ◽  
Vol 22 (15) ◽  
pp. 1403-1409 ◽  
Author(s):  
John G. Gibbons ◽  
Leonidas Salichos ◽  
Jason C. Slot ◽  
David C. Rinker ◽  
Kriston L. McGary ◽  
...  
2007 ◽  
Vol 362 (2) ◽  
pp. 474-479 ◽  
Author(s):  
Akinori Tatsumi ◽  
Jun-ya Shoji ◽  
Takashi Kikuma ◽  
Manabu Arioka ◽  
Katsuhiko Kitamoto

2013 ◽  
Vol 98 (1) ◽  
pp. 325-334 ◽  
Author(s):  
Ryuta Wada ◽  
Feng Jie Jin ◽  
Yasuji Koyama ◽  
Jun-ichi Maruyama ◽  
Katsuhiko Kitamoto

2016 ◽  
Vol 283 (1826) ◽  
pp. 20152470 ◽  
Author(s):  
Linda Ma ◽  
Boya Song ◽  
Thomas Curran ◽  
Nhu Phong ◽  
Emilie Dressaire ◽  
...  

It is challenging to apply the tenets of individuality to filamentous fungi: a fungal mycelium can contain millions of genetically diverse but totipotent nuclei, each capable of founding new mycelia. Moreover, a single mycelium can potentially stretch over kilometres, and it is unlikely that its distant parts share resources or have the same fitness. Here, we directly measure how a single mycelium of the model ascomycete Neurospora crassa is patterned into reproductive units (RUs), meaning subpopulations of nuclei that propagate together as spores, and function as reproductive individuals. The density of RUs is sensitive to the geometry of growth; we detected 50-fold smaller RUs when mycelia had expanding frontiers than when they were constrained to grow in one direction only. RUs fragmented further when the mycelial network was perturbed. In mycelia with expanding frontiers, RU composition was strongly influenced by the distribution of genotypes early in development. Our results provide a concept of fungal individuality that is directly connected to reproductive potential, and therefore to theories of how fungal individuals adapt and evolve over time. Our data show that the size of reproductive individuals is a dynamic and environment-dependent property, even within apparently totally connected fungal mycelia.


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