African gall midge resistant Oryza glaberrima germplasm

African rice gall midge (AfRGM), Orseolia oryzivora Harris and Gagné, is one of the most destructive pests of irrigated and lowland ecologies across 19 African countries. It is indigenous to Africa and morphologically distinct from Asian rice gall midge (AsRGM), Orseolia oryzae Wood-Mason. Crop damage is caused by the larvae, which infest rice tillers at the vegetative growth stage and destroy the growing primordia. Such larval infestation results in the formation of galls in the plants and prevent tillers from developing more leaves or panicles. The insect pest causes 20 to 100% yield losses depending on several factors, including climatic conditions (high rainfall, excessive cloud cover and high humidity), ecosystem (rainfed lowland, hydromorphic, upland and mangrove ecologies), planting season, type of germplasm (landraces vs. improved varieties), planting method (direct seeding vs. transplanting), plant population density, and cultural practices.

Host-plant resistance is the most effective, durable, and farmer-friendly control measure against this pest. In one study, the responses of 273 O. glaberrima accessions to African rice gall midge was screened under screenhouse conditions in Nigeria, which was followed by rescreening of the best 20 accessions (2 moderately resistant, 5 resistant and 13 highly resistant accessions) under natural infestation in a gall midge-endemic field conditions. Two, five, and thirteen accessions were found to be moderately resistant, resistant and highly resistant, respectively, with an overall percentage of infested tillers ranging from 0 to 4%, which was over ten-fold smaller than the susceptible check that had 40% infestation (Ukwungwu et al. 1998). In another study, the responses of 20 rice accessions to African rice gall midge was evaluated at five locations in four West African countries (Ogidiga and Gadza in Nigeria, Karfiguea la in Burkina Faso, Balancera in Sierra Leone, and Longorola in Mali) of which a few genotypes showed both stable and acceptable levels of resistance to the pest (Nwilene et al. 2010). Although none of the accessions showed a consistent level of resistance across all five locations, one O. sativa and five O. glaberrima accessions showed stable and acceptable levels of resistance to AfRGM. Here, we compiled a list of the most promising O. glaberrima landraces (accessions). which could be used as donors in developing African rice gall midge resistant rice germplasm in Africa.

Crop
Rice
Number of accessions
20
Creation date
2020
Subset metadata

Subset creators


Data curator
Marie Noelle Ndjiondjop AfricaRice
Data curator
Kassa Semagn Fentaye AfricaRice
Data collector
Kpeki Sedjro Bienvenu AfricaRice
Data collector
M. N.Ukwungwu National Cereals Research Institute
Data manager
Nwilene Francis AfricaRice

Data and resources


MCPD passport data

MCPD - 6a728143-8431-468a-8f8f-301f512736fd.xlsx

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Accessions

List of accessions included in the subset

1. WAB0001544Oryza glaberrima Steud. • TOG 6339 • Traditional cultivar/Landrace • Liberia+ Add to my list
CIV033Africa Rice Center, Ivory Coast • DOI: 10.18730/H8FYW
2. WAB0001547Oryza glaberrima Steud. • TOG 6342 • Traditional cultivar/Landrace • Liberia+ Add to my list
CIV033Africa Rice Center, Ivory Coast • DOI: 10.18730/H8G1Z
3. WAB0001551Oryza glaberrima Steud. • TOG 6346 • Traditional cultivar/Landrace • Liberia+ Add to my list
CIV033Africa Rice Center, Ivory Coast • DOI: 10.18730/H8G5=
4. WAB0001664Oryza glaberrima Steud. • TOG 6472 • Traditional cultivar/Landrace • Liberia+ Add to my list
CIV033Africa Rice Center, Ivory Coast • DOI: 10.18730/H8K4K
5. WAB0001681Oryza glaberrima Steud. • TOG 6489 • Traditional cultivar/Landrace • Liberia+ Add to my list
CIV033Africa Rice Center, Ivory Coast • DOI: 10.18730/H8KK$
6. WAB0001700Oryza glaberrima Steud. • TOG 6508 • Traditional cultivar/Landrace • Liberia+ Add to my list
CIV033Africa Rice Center, Ivory Coast • DOI: 10.18730/H8M3D
7. WAB0001731Oryza glaberrima Steud. • TOG 6539 • Traditional cultivar/Landrace • Liberia+ Add to my list
CIV033Africa Rice Center, Ivory Coast • DOI: 10.18730/SE9SH
8. WAB0001734Oryza glaberrima Steud. • TOG 6542 • Traditional cultivar/Landrace • Liberia+ Add to my list
CIV033Africa Rice Center, Ivory Coast • DOI: 10.18730/SE9RG
9. WAB0001781Oryza glaberrima Steud. • TOG 6589 • Traditional cultivar/Landrace • Liberia+ Add to my list
CIV033Africa Rice Center, Ivory Coast • DOI: 10.18730/H8P00
10. WAB0001819Oryza glaberrima Steud. • TOG 6629 • Traditional cultivar/Landrace • Liberia+ Add to my list
CIV033Africa Rice Center, Ivory Coast • DOI: 10.18730/H8PYY
11. WAB0002110Oryza glaberrima Steud. • TOG 7206 • Traditional cultivar/Landrace • Ivory Coast+ Add to my list
CIV033Africa Rice Center, Ivory Coast • DOI: 10.18730/SE0DD
12. WAB0006862Oryza glaberrima Steud. • TOG 6582 • Traditional cultivar/Landrace • Liberia+ Add to my list
CIV033Africa Rice Center, Ivory Coast • DOI: 10.18730/HAZ9E
13. WAB0007951Oryza glaberrima Steud. • TOG 6597 • Traditional cultivar/Landrace • Liberia+ Add to my list
CIV033Africa Rice Center, Ivory Coast • DOI: 10.18730/HBPXY
14. WAB0008788Oryza glaberrima Steud. • TOG 5860 • Traditional cultivar/Landrace • Liberia+ Add to my list
CIV033Africa Rice Center, Ivory Coast • DOI: 10.18730/HQJ1T
15. WAB0015248Oryza glaberrima Steud. • TOG 6216 • Traditional cultivar/Landrace • Ivory Coast+ Add to my list
CIV033Africa Rice Center, Ivory Coast • DOI: 10.18730/HEFXX
16. WAB0015249Oryza glaberrima Steud. • TOG 6631 • Traditional cultivar/Landrace • Liberia+ Add to my list
CIV033Africa Rice Center, Ivory Coast • DOI: 10.18730/HEFYY
17. WAB0020061Oryza glaberrima Steud. • TOG 7442 • Traditional cultivar/Landrace • Nigeria+ Add to my list
CIV033Africa Rice Center, Ivory Coast • DOI: 10.18730/SDTHA
18. WAB0020584Oryza glaberrima Steud. • TOG 7677 • Traditional cultivar/Landrace • Nigeria+ Add to my list
CIV033Africa Rice Center, Ivory Coast • DOI: 10.18730/HGV8=
19. WAB0020588Oryza glaberrima Steud. • TOG 7684 • Traditional cultivar/Landrace • Nigeria+ Add to my list
CIV033Africa Rice Center, Ivory Coast • DOI: 10.18730/HGVA0
20. WAB0026783Oryza glaberrima Steud. • TOG 7106 • Traditional cultivar/Landrace • Mali+ Add to my list
CIV033Africa Rice Center, Ivory Coast • DOI: 10.18730/HJY6Z