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. 2019 Apr 30;10(5):330. doi: 10.3390/genes10050330

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© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Pheromone signalling in heterothallic filamentous ascomycetes. (1) Pheromones are expressed, with spermatia of MAT1-1 isolates expressing the α-factor and spermatia of MAT1-2 isolates expressing the a-factor pheromone. (2) The ascogonia of these isolates also express the pheromone receptors, which recognize the pheromones. (3) Recognition of the pheromones by their receptors results in a variety of physiological changes, including growth towards the suitable partner as well as the transcriptional regulation of sex-related genes.