Tropical grasses vary in their resistance to &lt;i&gt;Striga aspera&lt;/i&gt;, &lt;i&gt;Striga hermonthica&lt;/i&gt;, and their hybrids

Kuiper, E.; Groot, A. A. De; Noordover, Esther C.M.; Pieterse, A.H.; Verkleij, J. A. C.

doi:10.1139/cjb-76-12-2131

Cited by 8 publications

(1 citation statement)

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“…Stable genetic resistance in adapted genotypes is required for effective control, but Striga resistance genes have not been identified in finger millet. The potential sources for Striga resistance/tolerance, however, might be available in wild species of finger millet (Kuiper et al, 1998). Some genetic resistance has been reported in rice, sorghum, pearl millet and maize, but no immunity has been identified in any crop (Harahap et al, 1993; Kim et al, 1999; Oswald, 2005; Ejeta and Gressel, 2007).…”

Section: Comparative Genomics Applications In the Cropmentioning

confidence: 99%

Gene Discovery and Advances in Finger Millet [Eleusine coracana (L.) Gaertn.] Genomics—An Important Nutri-Cereal of Future

et al. 2016

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The rapid strides in molecular marker technologies followed by genomics, and next generation sequencing advancements in three major crops (rice, maize and wheat) of the world have given opportunities for their use in the orphan, but highly valuable future crops, including finger millet [Eleusine coracana (L.) Gaertn.]. Finger millet has many special agronomic and nutritional characteristics, which make it an indispensable crop in arid, semi-arid, hilly and tribal areas of India and Africa. The crop has proven its adaptability in harsh conditions and has shown resilience to climate change. The adaptability traits of finger millet have shown the advantage over major cereal grains under stress conditions, revealing it as a storehouse of important genomic resources for crop improvement. Although new technologies for genomic studies are now available, progress in identifying and tapping these important alleles or genes is lacking. RAPDs were the default choice for genetic diversity studies in the crop until the last decade, but the subsequent development of SSRs and comparative genomics paved the way for the marker assisted selection in finger millet. Resistance gene homologs from NBS-LRR region of finger millet for blast and sequence variants for nutritional traits from other cereals have been developed and used invariably. Population structure analysis studies exhibit 2–4 sub-populations in the finger millet gene pool with separate grouping of Indian and exotic genotypes. Recently, the omics technologies have been efficiently applied to understand the nutritional variation, drought tolerance and gene mining. Progress has also occurred with respect to transgenics development. This review presents the current biotechnological advancements along with research gaps and future perspective of genomic research in finger millet.

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Section: Comparative Genomics Applications In the Cropmentioning

confidence: 99%

Gene Discovery and Advances in Finger Millet [Eleusine coracana (L.) Gaertn.] Genomics—An Important Nutri-Cereal of Future

et al. 2016

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Can wild relatives of sorghum provide new sources of resistance or tolerance against Striga species?

2002

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Summary The genus Striga contains some of the most noxious parasitic plants, which have a devastating impact on cereal production in Africa; of most importance are Striga hermonthica and Striga asiatica. Complete resistance to infection by Striga species does not exist in cultivated cereals. Of great interest is the possibility that wild relatives of cereals may provide a genetic basis for resistance or tolerance to infection and may be of enormous value for the development of resistant crops. A wild relative of cultivated sorghum, Sorghum arundinaceum, demonstrated tolerance to infection by S. asiatica, with little impact of S. asiatica on host growth or grain production compared with the detrimental impact of the parasite on cultivated sorghum. Infection by S.hermonthica, however, had a significant influence on host performance for both wild and cultivated sorghum. Differences in host:parasite responses may be explained by the timing of parasite attachment and differences in host specificity for these two Striga species.

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Variation in resistance to Orobanche crenata in species of Cicer

2004

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Crenate broomrape (Orobanche crenata) is a major constraint for legume cultivation in Mediterranean agriculture. Field trials, pot and in vitro experiments demonstrated that resistance to O. crenata is present in chickpea and wild species of Cicer. The resistance is the result of the combination of several mechanisms, including low induction of parasite seed germination and in some accessions, either a darkening at the infection site on the host root that prevents establishment, or a reduced development of established parasite tubercles.

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Tropical grasses vary in their resistance to <i>Striga aspera</i>, <i>Striga hermonthica</i>, and their hybrids

Cited by 8 publications

References 0 publications

Gene Discovery and Advances in Finger Millet [Eleusine coracana (L.) Gaertn.] Genomics—An Important Nutri-Cereal of Future

Gene Discovery and Advances in Finger Millet [Eleusine coracana (L.) Gaertn.] Genomics—An Important Nutri-Cereal of Future

Can wild relatives of sorghum provide new sources of resistance or tolerance against Striga species?

Variation in resistance to Orobanche crenata in species of Cicer

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