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Draft genome sequence of Neofusicoccum caryigenum associated with pecan leaf dieback

Summary

Scientists have sequenced the complete genetic code of a fungus called Neofusicoccum caryigenum that causes pecan leaf dieback, a disease affecting pecan trees in the southeastern United States. The fungus was first identified in 2021 and causes leaves to fall off pecan trees, reducing crop yields. This genetic information will help researchers better understand the disease and develop ways to prevent or control it.

Background

Pecan leaf dieback caused by Neofusicoccum caryigenum is an emerging disease in southeastern United States pecan orchards that was first identified in 2021. This disease causes defoliation of pecan trees, leading to decreased pecan yields. Symptoms have been observed in Georgia, Louisiana, Alabama, and Texas.

Objective

To sequence, assemble, and annotate the first draft genome of N. caryigenum, the causal pathogen of pecan leaf dieback. This genomic resource aims to support future research on the pathogen and the disease it causes.

Results

The draft genome assembly of N. caryigenum was 42.5 Mbp in size with a GC content of 56.51% and genome completeness of 97.4%. The assembly contained 609 contigs with an N50 of 22.9 kbp. Genome statistics were similar to other Neofusicoccum species genomes.

Conclusion

The first draft genome of N. caryigenum has been successfully sequenced and deposited in GenBank under accession number ASM3196795v1. This genomic resource will support further research on the emerging pecan leaf dieback disease and the pathogen responsible for it.
  • Published in:Microbiology Resource Announcements,
  • Study Type:Genome Sequencing Study,
  • Source: 10.1128/mra.00944-23, PMID: 38483453
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