Magnaporthe oryzae populations in Sub-Saharan Africa are diverse and show signs of local adaptation

Simple item page
dc.contributor.authorOnaga, Geoffrey
dc.contributor.authorSuktrakul, Worrawit
dc.contributor.authorWanjiku, Margaret
dc.contributor.authorQuibod, Ian Lorenzo
dc.contributor.authorDomelevo Entfellner, Jean- Baka
dc.contributor.authorBigirimana, Joseph
dc.contributor.authorHabarugira, George
dc.contributor.authorMurori, Rosemary
dc.contributor.authorAsea, Godfrey
dc.contributor.authorIsmail, Abdelbagi M.
dc.contributor.authorJantasuriyarat, Chatchawan
dc.contributor.authorOliva, Ricardo
dc.date.accessioned2022-02-18T14:54:01Z
dc.date.available2022-02-18T14:54:01Z
dc.date.issued2020
dc.description.abstractRice blast caused by Magnaporthe oryzae is one of the most economically damaging diseases of rice worldwide. The disease originated in Asia but was detected for the first time in Sub-Saharan Africa (SSA) around 100 years ago. Despite its importance, the evolutionary processes involved in shaping the population structure of M. oryzae in SSA remain unclear. In this study, we investigate the population history of M. oryzae using a combined dataset of 180 genomes. Our results show that SSA populations are more diverse than earlier perceived, and harbor all genetic groups previously reported in Asia. While M. oryzae populations in SSA and Asia draw from the same genetic pools, both are experiencing different evolutionary trajectories resulting from unknown selection pressures or demographic processes. The distribution of rare 32 alleles, measured as Tajima’s D values, show significant differences at the substructure level. Genome-wide analysis indicates potential events of population contraction strongly affecting M. oryzae in SSA. In addition, the distribution and haplotype diversity of effectors might suggest a process of local adaptation to SSA conditions. These findings provide additional clues about the evolutionary history of M. oryzae outside the center of origin and help to build customized disease management strategies.en_US
dc.identifier.citationOnaga, G., Suktrakul, W., Wanjiku, M., Quibod, I. L., Entfellner, J. B. D., Bigirimana, J., ... & Oliva, R. (2020). Magnaporthe oryzae populations in Sub-Saharan Africa are diverse and show signs of local adaptation. bioRxiv. https://doi.org/10.1101/2020.11.17.377325en_US
dc.identifier.urihttps://doi.org/10.1101/2020.11.17.377325; this
dc.identifier.urihttps://nru.uncst.go.ug/xmlui/handle/123456789/2207
dc.language.isoenen_US
dc.publisherbioRxiven_US
dc.subjectMagnaporthe oryzae populationsen_US
dc.subjectSub-Saharan Africaen_US
dc.subjectDiverseen_US
dc.subjectLocal adaptationen_US
dc.titleMagnaporthe oryzae populations in Sub-Saharan Africa are diverse and show signs of local adaptationen_US
dc.typeArticleen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Magnaporthe oryzae populations in Sub-Saharan Africa are diverse and show.pdf
Size:
962.35 KB
Format:
Adobe Portable Document Format
Description:
Article
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Agricultural and Veterinary Sciences