Abstract Detail

Mycology

Naranjo-Ortiz, Miguel Ángel [1], Patev, Sean [2], Min, Byoungnam [3], Grigoriev, Igor [3], Hibbett, David [5].

Phylogenomics, genome evolution and pangenome in the genus Lentinula (Berk.) Pegler (Agaricales).

The genus Lentinula contains a handful of species of white rot Agaricales, including one of the most important mushroom crop in the world, L. Edodes. We summarize recent discoveries regarding evolution of the genus Lentinula (Agaricales) from an extensive comparative genomic study. Phylogenomics help resolve the species relationships within Lentinula. The genus has a transpacific geographical distribution, with at least three clearly defined species complexes in the Americas (L. raphanica, L. boryana and L. aciculospora) and several species in Asia and Oceania that are, for the most part, interfertile. Topology analyses support sisterhood of Asia-Oceania clades with L. aciculospora and point to a possible american origin of the genus. We also explore patterns of gene family evolution within the genus, which shows a considerable repertoire accesory genome with large differences between species complexes.  L. raphanica posseses a much larger accesory genome than the rest of the genus, and in particular than its sister lineage, L. Boryana. Meanwhile, the american Lentinula have important reductions in cold-shock gene families, likely as a consequence of their tropical and subtropical distributions.

1 - Clark University , Department of Biology, 950 Main St, Worcester, MA, 01610, USA
2 - Clark University, Biology, 950 Main St , Worcester, MA, 01610, USA
3 - Joint Genome Institute / Lawrence Berkeley National Laboratory / UC Be, Cyclotron road, Berkeley, CA, 94720
4 - Joint Genome Institute / Lawrence Berkeley National Laboratory / UC Be, Cyclotron road, Berkeley, CA, 94720
5 - Dept Of Biology, Clark University, Worcester, MA, 01610, United States

Keywords:
Lentinula
Comparative genomics
phylogenomics
Mycology.

Presentation Type: Poster
Session: MYP3, Mycology Posters III
Location: /
Date: Wednesday, July 21st, 2021
Time: 5:00 PM(EDT)
Number: MYP3003
Abstract ID:182
Candidate for Awards:None