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Zhang MZ, Xu JP, Callac P, Chen MY, Wu Q, Wach M, Mata G, Zhao RL. Insight into the evolutionary and domesticated history of the most widely cultivated mushroom Agaricus bisporus via mitogenome sequences of 361 global strains. BMC Genomics 2023; 24:182. [PMID: 37020265 PMCID: PMC10077685 DOI: 10.1186/s12864-023-09257-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 03/20/2023] [Indexed: 04/07/2023] Open
Abstract
Agaricus bisporus is the most widely cultivated edible mushroom in the world with a only around three hundred years known history of cultivation. Therefore, it represents an ideal organism not only to investigate the natural evolutionary history but also the understanding on the evolution going back to the early era of domestication. In this study, we generated the mitochondrial genome sequences of 352 A. bisporus strains and 9 strains from 4 closely related species around the world. The population mitogenomic study revealed all A. bisporus strains can be divided into seven clades, and all domesticated cultivars present only in two of those clades. The molecular dating analysis showed this species origin in Europe on 4.6 Ma and we proposed the main dispersal routes. The detailed mitogenome structure studies showed that the insertion of the plasmid-derived dpo gene caused a long fragment (MIR) inversion, and the distributions of the fragments of dpo gene were strictly in correspondence with these seven clades. Our studies also showed A. bisporus population contains 30 intron distribution patterns (IDPs), while all cultivars contain only two IDPs, which clearly exhibit intron loss compared to the others. Either the loss occurred before or after domestication, that could suggest that the change facilitates their adaptation to the cultivated environment.
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Affiliation(s)
- Ming-Zhe Zhang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No3 1St Beichen West Road, Beijing, 100101, Chaoyang District, China
- College of Life Sciences, University of Chinese Academy of Sciences, Huairou District, Beijing, 101408, China
| | - Jian-Ping Xu
- Department of Biology, McMaster University, Hamilton, ON, Canada
| | | | - Mei-Yuan Chen
- Edible Fungi Institute of Fujian Academy of Agricultural Sciences, Fuzhou, 350014, China
| | - Qi Wu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No3 1St Beichen West Road, Beijing, 100101, Chaoyang District, China
- College of Life Sciences, University of Chinese Academy of Sciences, Huairou District, Beijing, 101408, China
| | - Mark Wach
- Sylvan BioSciences, Kittanning, PA, 16201, USA
| | - Gerardo Mata
- Instituto de Ecología A.C. Carretera Antigua a Coatepec, 351, El Haya, 91073, Veracruz, CPXalapa, Mexico
| | - Rui-Lin Zhao
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No3 1St Beichen West Road, Beijing, 100101, Chaoyang District, China.
- College of Life Sciences, University of Chinese Academy of Sciences, Huairou District, Beijing, 101408, China.
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Liu W, Cai Y, Zhang Q, Chen L, Shu F, Ma X, Bian Y. The mitochondrial genome of Morchella importuna (272.2 kb) is the largest among fungi and contains numerous introns, mitochondrial non-conserved open reading frames and repetitive sequences. Int J Biol Macromol 2019; 143:373-381. [PMID: 31830457 DOI: 10.1016/j.ijbiomac.2019.12.056] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 12/06/2019] [Accepted: 12/07/2019] [Indexed: 12/11/2022]
Abstract
The complete mitochondrial genome of Morchella importuna, the famous edible and medicinal mushroom, was assembled as a 272,238 bp single circular dsDNA. As the largest mitogenome among fungi, it exhibits several distinct characteristics. The mitogenome of M. importuna encoded 14 core conserved mitochondrial protein-coding genes and 151 mitochondrial non-conserved open reading frames (ncORFs) were predicted, of which 61 were annotated as homing endonuclease genes, and 108 were confirmed to be expressed during the vegetative growth stages of M. importuna. In addition, 34 introns were identified in seven core genes (cob, cox1, cox2, cox3, nad1, nad4 and nad5) and two rRNA genes (rrnS and rrnL) with a length from 383 bp to 7453 bp, and eight large introns with a length range of 2340 bp to 7453 bp contained multiple intronic mtORFs. Moreover, 34 group I (IA, IB, IC1, IC2, ID and derived group I introns) and four group II intron domains were identified for the 34 introns, including five hybrid ones. Furthermore, the M. importuna mitogenome showed the presence of about 18.7% mitogenomic interspersed repeats. These and the aforementioned ncORFs and introns, contributed to the enlarged size of the mitogenome.
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Affiliation(s)
- Wei Liu
- Institute of Applied Mycology, Huazhong Agricultural University, Wuhan 430070, China
| | - Yingli Cai
- Institute of Vegetable, Wuhan Academy of Agricultural Sciences, Wuhan 430070, China
| | - Qianqian Zhang
- Institute of Applied Mycology, Huazhong Agricultural University, Wuhan 430070, China
| | - Lianfu Chen
- Institute of Applied Mycology, Huazhong Agricultural University, Wuhan 430070, China
| | - Fang Shu
- Institute of Applied Mycology, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiaolong Ma
- Institute of Vegetable, Wuhan Academy of Agricultural Sciences, Wuhan 430070, China
| | - Yinbing Bian
- Institute of Applied Mycology, Huazhong Agricultural University, Wuhan 430070, China.
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Bastiaans E, Aanen DK, Debets AJM, Hoekstra RF, Lestrade B, Maas MFPM. Regular bottlenecks and restrictions to somatic fusion prevent the accumulation of mitochondrial defects in Neurospora. Philos Trans R Soc Lond B Biol Sci 2014; 369:20130448. [PMID: 24864316 PMCID: PMC4032522 DOI: 10.1098/rstb.2013.0448] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The replication and segregation of multi-copy mitochondrial DNA (mtDNA) are not under strict control of the nuclear DNA. Within-cell selection may thus favour variants with an intracellular selective advantage but a detrimental effect on cell fitness. High relatedness among the mtDNA variants of an individual is predicted to disfavour such deleterious selfish genetic elements, but experimental evidence for this hypothesis is scarce. We studied the effect of mtDNA relatedness on the opportunities for suppressive mtDNA variants in the fungus Neurospora carrying the mitochondrial mutator plasmid pKALILO. During growth, this plasmid integrates into the mitochondrial genome, generating suppressive mtDNA variants. These mtDNA variants gradually replace the wild-type mtDNA, ultimately culminating in growth arrest and death. We show that regular sequestration of mtDNA variation is required for effective selection against suppressive mtDNA variants. First, bottlenecks in the number of mtDNA copies from which a 'Kalilo' culture started significantly increased the maximum lifespan and variation in lifespan among cultures. Second, restrictions to somatic fusion among fungal individuals, either by using anastomosis-deficient mutants or by generating allotype diversity, prevented the accumulation of suppressive mtDNA variants. We discuss the implications of these results for the somatic accumulation of mitochondrial defects during ageing.
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Affiliation(s)
- E Bastiaans
- Laboratory of Genetics, Wageningen University, Droevendaalsesteeg 1, Wageningen 6708 PB, The Netherlands
| | - D K Aanen
- Laboratory of Genetics, Wageningen University, Droevendaalsesteeg 1, Wageningen 6708 PB, The Netherlands
| | - A J M Debets
- Laboratory of Genetics, Wageningen University, Droevendaalsesteeg 1, Wageningen 6708 PB, The Netherlands
| | - R F Hoekstra
- Laboratory of Genetics, Wageningen University, Droevendaalsesteeg 1, Wageningen 6708 PB, The Netherlands
| | - B Lestrade
- Laboratory of Genetics, Wageningen University, Droevendaalsesteeg 1, Wageningen 6708 PB, The Netherlands
| | - M F P M Maas
- Laboratory of Genetics, Wageningen University, Droevendaalsesteeg 1, Wageningen 6708 PB, The Netherlands
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Baidyaroy D, Hausner G, Fulbright DW, Bertrand H. Mitochondrial plasmid-like elements in some hypovirulent strains of Cryphonectria parasitica. Fungal Genet Biol 2011; 48:764-74. [DOI: 10.1016/j.fgb.2011.05.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2010] [Revised: 03/17/2011] [Accepted: 05/08/2011] [Indexed: 10/18/2022]
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Ferandon C, Chatel SEK, Castandet B, Castroviejo M, Barroso G. The Agrocybe aegerita mitochondrial genome contains two inverted repeats of the nad4 gene arisen by duplication on both sides of a linear plasmid integration site. Fungal Genet Biol 2008; 45:292-301. [DOI: 10.1016/j.fgb.2007.10.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2007] [Revised: 09/24/2007] [Accepted: 10/17/2007] [Indexed: 11/25/2022]
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Abstract
Some naturally occurring strains of fungi cease growing through successive subculturing, i.e., they senesce. In Neurospora, senescing strains usually contain intramitochondrial linear or circular plasmids. An entire plasmid or its part(s) integrates into the mtDNA, causing insertional mutagenesis. The functionally defective mitochondria replicate faster than the wild-type mitochondria and spread through interconnected hyphal cells. Senescence could also be due to spontaneous lethal nuclear gene mutations arising in the multinucleated mycelium. However, their phenotypic effects remain masked until the nuclei segregate into a homokaryotic spore, and the spore germinates to form a mycelium that is incapable of extended culturing. Ultimately the growth of a fungal colony ceases due to dysfunctional oxidative phosphorylation. Results with senescing nuclear mutants or growth-impaired cytoplasmic mutants suggest that mtDNA is inherently unstable, requiring protection by as yet unidentified nuclear-gene-encoded factors for normal functioning. Interestingly, these results are in accord with the endosymbiotic theory of origin of eukaryotic cells.
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Affiliation(s)
- Ramesh Maheshwari
- Department of Biochemistry, Indian Institute of Science, Bangalore, India.
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