2022
DOI: 10.1101/2022.07.25.501483
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Telomere-to-telomere genome assembly of matsutake (Tricholoma matsutake)

Abstract: Here, we report the first telomere-to-telomere genome assembly of matsutake (Tricholoma matsutake), which consists of 13 chromosomes (spanning 160.7 Mb) and a 76 kb circular mitochondrial genome. The chromosome sequences were supported with telomeric repeats at the ends. GC-rich regions are located at the middle of the chromosomes and are enriched with long interspersed nuclear elements (LINEs). Repetitive sequences including long-terminal repeats (LTRs) and LINEs occupy 71.7% of the genome. A total of 28,322 … Show more

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Cited by 4 publications
(8 citation statements)
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“…In T. bakamatsutake, marY1 was one of the most frequent retrotransposons and was dispersed throughout the nuclear genome, but not in the mitochondrial genome. This is consistent with the results of a previous examination of T. matsutake (Kurokochi et al ., 2022), suggesting that it may be a common feature in the genus Tricholoma and/or section Caligata . In filamentous fungi (e.g., N. crassa ), centromeric regions consist of degenerated copies of retrotransposons and simple sequence repeats (Smith et al ., 2012).…”
Section: Discussionsupporting
confidence: 93%
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“…In T. bakamatsutake, marY1 was one of the most frequent retrotransposons and was dispersed throughout the nuclear genome, but not in the mitochondrial genome. This is consistent with the results of a previous examination of T. matsutake (Kurokochi et al ., 2022), suggesting that it may be a common feature in the genus Tricholoma and/or section Caligata . In filamentous fungi (e.g., N. crassa ), centromeric regions consist of degenerated copies of retrotransposons and simple sequence repeats (Smith et al ., 2012).…”
Section: Discussionsupporting
confidence: 93%
“…The assembled chromosome lengths and GC contents varied from 14.07 Mb to 5.23 Mb and from 43.39% to 44.52%, respectively (Table S1). The overall GC content of the 13 chromosomes was 43.94%, which was similar to the GC contents of previously reported T. matsutake genome assemblies, with an average of 45.39% in three different assemblies (Min et al ., 2020; Miyauchi et al ., 2020; Kurokochi et al ., 2022). Unlike the T. matsutake chromosomes, most of the T. bakamatsutake chromosomal regions had similar GC contents.…”
Section: Resultsmentioning
confidence: 99%
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