Invasive Californian death caps develop mushrooms unisexually and bisexually.
Invasive Californian death caps develop mushrooms unisexually and bisexually.
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DOI：
10.1038/s41467-023-42317-z
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发表时间：
2023-10-24
影响因子：
16.6
通讯作者：
Pringle, Anne
中科院分区：
文献类型：
--
作者：
Wang, Yen-Wen;Mckeon, Megan C.;Elmore, Holly;Hess, Jaqueline;Golan, Jacob;Gage, Hunter;Mao, William;Harrow, Lynn;Goncalves, Susana C.;Hull, Christina M.;Pringle, Anne
典型的有性繁殖涉及两个不同交配类型的单倍体个体的融合，导致由遗传上不同的细胞核组成的异源菌丝体。利用种群基因组学数据和实验，我们发现入侵性和致命性的鹅膏菌也可以是同核的;单个未交配个体有性生殖的证据。在加州，异核菌中也发现了同核菌的基因型，这意味着异核菌菌丝体的细胞核也参与了异交。我们发现死帽交配是由一个单一的交配型基因座控制，但同核蘑菇的发展似乎绕过交配型基因控制。最终，孢子形成是由能够单独繁殖以及与其他细胞一起繁殖的细胞核实现的，并且能够同时具有单性和双性性的细胞核在入侵的栖息地中持续存在至少17年，但可能长达30年。入侵性死亡帽的不同繁殖策略可能促进了其快速传播，这表明植物，动物和真菌入侵之间存在深刻的相似性。死亡帽蘑菇鹅膏菌正在入侵加州，但人们对它如何在森林中传播知之甚少。Wang等人发现这种真菌可以在不交配的情况下发育蘑菇和孢子;与单性性有关的细胞核似乎在入侵的栖息地中持续了几十年。
Canonical sexual reproduction among basidiomycete fungi involves the fusion of two haploid individuals of different mating types, resulting in a heterokaryotic mycelial body made up of genetically different nuclei. Using population genomics data and experiments, we discover mushrooms of the invasive and deadly Amanita phalloides can also be homokaryotic; evidence of sexual reproduction by single, unmated individuals. In California, genotypes of homokaryotic mushrooms are also found in heterokaryotic mushrooms, implying nuclei of homokaryotic mycelia are also involved in outcrossing. We find death cap mating is controlled by a single mating type locus, but the development of homokaryotic mushrooms appears to bypass mating type gene control. Ultimately, sporulation is enabled by nuclei able to reproduce alone as well as with others, and nuclei competent for both unisexuality and bisexuality have persisted in invaded habitats for at least 17 but potentially as long as 30 years. The diverse reproductive strategies of invasive death caps are likely facilitating its rapid spread, suggesting a profound similarity between plant, animal and fungal invasions. The death cap mushroom Amanita phalloides is invading California but little is known about how it spreads through forests. Wang et al. discover that this fungus can develop mushrooms and sporulate without mating; the nuclei involved in unisexuality appear to have persisted in invaded habitats for decades.
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影响因子：
14.9
作者：
Dobson L;Reményi I;Tusnády GE
通讯作者：
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影响因子：
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Vinh LS
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作者：
Haas, Brian J.;Salzberg, Steven L.;Zhu, Wei;Pertea, Mihaela;Allen, Jonathan E.;Orvis, Joshua;White, Owen;Buell, C. Robin;Wortman, Jennifer R.
通讯作者：
Wortman, Jennifer R.