Pythium arrhenomanes Assembly and Gene Annotation

About the Pythium arrhenomanes Genome

Pythium arrhenomanes is the causal agent of root rot on many Poaceae crops. P. arrhenomanes is an important seedling rice pathogen. It is isolated frequently from corn (Zea mays) roots in corn-soybean (Glycine max) rotation plots and in irrigated plots of continuous corn.

It belongs to the group oomycetes which was originally classified among the fungi, due to its morphological and functional similarities. They are now classifed as protists based on modern insights on phylogentic relationship with photosynthetic organisms such as brown algae and diatoms.

Assembly

The genome is ~45Mb and are assembled into 10,978 saffolds. The assembly for the genome was provided by Pythium Genome Database and is also available from the EMBL/Genbank/DDBJ databases under the accession GCA_000387505.2

Annotation

The protein coding genes are imported from the Pythium Genome Database and 52 ncRNAs were predicted using Ensembl pipeline.

References

1. Pythium Genome Database.
   
2. Genome sequence of the necrotrophic plant pathogen Pythium ultimum reveals original pathogenicity mechanisms and effector repertoire.
   Lvesque CA, Brouwer H, Cano L, Hamilton JP, Holt C, Huitema E, Raffaele S, Robideau GP, Thines M, Win J et al. 2010. Genome Biol.. 11:R73.
3. Comparative genomics reveals insight into virulence strategies of plant pathogenic oomycetes.
   Adhikari BN, Hamilton JP, Zerillo MM, Tisserat N, Lvesque CA, Buell CR. 2013. PLoS ONE. 8:e75072.
4. Carbohydrate-active enzymes in pythium and their role in plant cell wall and storage polysaccharide degradation.
   Zerillo MM, Adhikari BN, Hamilton JP, Buell CR, Lvesque CA, Tisserat N. 2013. PLoS ONE. 8:e72572.

Picture credit: Growing hyphae of Pythium aphanidermatum on creeping bent grass leaf - Photo taken by Dr. Marcelo Zerillo in the laboratory of Ned Tisserat

More information

General information about this species can be found in Wikipedia.