2017
DOI: 10.1073/pnas.1618965114
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Mutation in sorghum LOW GERMINATION STIMULANT 1 alters strigolactones and causes Striga resistance

Abstract: Striga is a major biotic constraint to sorghum production in semiarid tropical Africa and Asia. Genetic resistance to this parasitic weed is the most economically feasible control measure. Mutant alleles at the LGS1 (LOW GERMINATION STIMULANT 1) locus drastically reduce Striga germination stimulant activity. We provide evidence that the responsible gene at LGS1 codes for an enzyme annotated as a sulfotransferase and show that functional loss of this gene results in a change of the dominant strigolactone (SL) i… Show more

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Cited by 200 publications
(191 citation statements)
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“…QTLs for resistance to Striga Races 1 and 3 were located on a different chromosome/linkage group than the inversion on Vu03, ruling out the inversion as the basis of those resistances. However, it was noted that the sorghum gene Sobic.005G213600 regulating Striga resistance via a presence/absence variation (Gobena et al ., ) encodes a sulfotransferase that is homologous to the cowpea gene Vigun03 g220400 , which is located inside the inverted region on Vu03 (Data S6) and is highly expressed in root tissue (https://legumeinfo.org/feature/Vigna/unguiculata/gene/vigun.IT97K-499-35.gnm1.ann1.Vigun03g220400#pane=geneexpressionprofile). Therefore, it seems possible that the region containing Vigun03 g220400 may affect Striga interactions in a manner that has not yet been discovered; this hypothesis merits further testing.…”
Section: Resultsmentioning
confidence: 99%
“…QTLs for resistance to Striga Races 1 and 3 were located on a different chromosome/linkage group than the inversion on Vu03, ruling out the inversion as the basis of those resistances. However, it was noted that the sorghum gene Sobic.005G213600 regulating Striga resistance via a presence/absence variation (Gobena et al ., ) encodes a sulfotransferase that is homologous to the cowpea gene Vigun03 g220400 , which is located inside the inverted region on Vu03 (Data S6) and is highly expressed in root tissue (https://legumeinfo.org/feature/Vigna/unguiculata/gene/vigun.IT97K-499-35.gnm1.ann1.Vigun03g220400#pane=geneexpressionprofile). Therefore, it seems possible that the region containing Vigun03 g220400 may affect Striga interactions in a manner that has not yet been discovered; this hypothesis merits further testing.…”
Section: Resultsmentioning
confidence: 99%
“…Lastly, we evaluated the effect of our synthetic molecules on seed germination of a parasitic weed, Orobanche cumana, which causes serious damage in sunflower production . Thus, sunflower‐derived heliolactone should be promising germination stimulant for Orobanche cumana .…”
Section: Resultsmentioning
confidence: 99%
“…Benth [21]. The seeds of cultivar BRS330 were from “Embrapa Milho e Sorgo” (Brazil) and the seeds of cultivar SRN-39 originally released in Niger and Sudan (Africa) [22, 23] were provided by the Laboratory of Plant Physiology—Wageningen University (Netherlands).…”
Section: Methodsmentioning
confidence: 99%