The potential contribution of wild barley (Hordeum vulgare ssp. spontaneum) germplasm to drought tolerance of cultivated barley (H. vulgare ssp. vulgare)

Lakew, Berhane; Eglinton, J.; Henry, Robert J.; Baum, Michaël; Grando, S.; Ceccarelli, Salvatore

doi:10.1016/j.fcr.2010.09.011

Cited by 52 publications

(28 citation statements)

References 20 publications

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“…Based on our long experience with this cross in the Spanish barley breeding program, we were expecting to find grain yield QTLs independent of phenological traits, at least for the autumnsown trials. Very few studies have found grain yield QTLs of such type under Mediterranean conditions and, in general, they are detected in crosses with exotic sources, either H. spontaneum or landrace-derived material (von Korff et al 2006(von Korff et al , 2008Lakew et al 2011).…”

Section: Discussionmentioning

confidence: 98%

Quantitative trait loci for agronomic traits in an elite barley population for Mediterranean conditions

et al. 2013

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Advances in plant breeding through marker-assisted selection (MAS) are only possible when genes or quantitative trait loci (QTLs) can contribute to the improvement of elite germplasm. A population of recombinant inbred lines (RILs) was developed for one of the best crosses of the Spanish National Barley Breeding Program, between two six-row winter barley cultivars Orria and Plaisant. The objective of this study was to identify favourable QTLs for agronomic traits in this population, which may help to optimise breeding strategies for these and other elite materials for the Mediterranean region. A genetic linkage map was developed for 217 RILs, using 382 single nucleotide polymorphism markers, selected from the barley oligonucleotide pool assay BOPA1 and two genes. A subset of 112 RILs was evaluated for several agronomic traits over a period of 2 years at three locations, Lleida and Zaragoza (Spain) and Fiorenzuola d'Arda (Italy), for a total of five field trials. An important segregation distortion occurred during population development in the region surrounding the VrnH1 locus. A QTL for grain yield and length of growth cycle was also found at this locus, apparently linked to a differential response of the VrnH1 alleles to temperature. A total of 33 QTLs was detected, most of them for important breeding targets such as plant height and thousand-grain weight. QTL 9 environment interactions were prevalent for most of the QTLs detected, although most interactions were of a quantitative nature. Therefore, QTLs suitable for MAS for most traits were identified.

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Section: Discussionmentioning

confidence: 98%

Quantitative trait loci for agronomic traits in an elite barley population for Mediterranean conditions

et al. 2013

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“…In these regions, where maize significantly suffers from moisture scarcity, about 54,000 metric tons of certified drought-tolerant seed was produced through the program in a single year [177,178]. Countries which benefited a lot from the program by releasing the highest number of varieties for diverse agro-ecologies and growing conditions are Nigeria (21 varieties), Zambia (18), and Malawi (17). WEMA (Water-Efficient Maize for Africa) is a project which is coordinated by AATF (African Agricultural Technology Foundation) and focuses on five countries, namely Kenya, Mozambique, South Africa, Tanzania and Uganda [179].…”

Section: Push-pull Technology For Multitude Of Benefitsmentioning

confidence: 99%

Raising Crop Productivity in Africa through Intensification

Tadele

2017

Agronomy

125

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“…spontaneum (K. Koch) Thell., one in the secondary gene pool (GP2) H. bulbosum L., and three in the tertiary gene pool (GP3) H. secalinum Schreber, H. murinum L. and H. marinum Hudson. These wild relatives in GP1b and GP2 are valuable genetic resources contributing disease resistance and drought tolerance in barley cultivars (Nevo and Chen 2010;Lakew et al 2011).…”

Section: Resultsmentioning

confidence: 99%

Towards the conservation of crop wild relative diversity in North Africa: checklist, prioritisation and inventory

Lala

Amri

Maxted

2017

Genet Resour Crop Evol

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Crop wild relatives (CWR) are wild species that are more or less genetically related to crops that can be used to introgress useful genes for improvement of productivity, resistance to biotic and abiotic stresses and quality of cultivated crops. They are important in crop improvement to achieve food security for an increasing population and to overcome the challenges caused by climate change and the new virulence of major diseases and pests. These genetic resources are increasingly threatened in their natural habitats through over-exploitation and land reclamation and degradation. Therefore, their efficient and effective conservation would be taxonomically and genetically valuable and will contribute to maintaining and promoting the sustainability of crop diversity, facilitating agricultural production and supporting the increasing demand for food, feed and natural resources. A checklist of 5780 Crop Wild Relatives (CWR) taxa from North Africa was obtained using the CWR Catalogue for Europe and the Mediterranean (PGR Forum). Of which consists 76% of the flora of North Africa. The checklist contains 5588 (*97%) native taxa and 192 introduced. Families with higher taxa richness are Fabaceae, Asteraceae, and Poaceae. These three families constitute more than 33% of the total taxa included in the checklist. About 9% (502) CWR taxa identified as a priority for conservation in North Africa using four criteria, the economic value of the crop, the relatedness degree of wild relatives to their crop, threat status using IUCN red list assessment, and finally the centre of origin and/or diversity of the crop. Of these, 112 taxa were assigned high, 268 medium and 122 low priorities for effective conservation. Those assessed as threatened using IUCN Red list and national assessment represent approximately 2% (119 taxa) of the CWR in the region. However, 21 taxa are assessed as critically endangered (CR), 53 as endangered (EN), and 45 as vulnerable (VU). Wild relatives of some globally important crops are present, with those related to wheat (Triticum aestivum L. and T. durum L.) and barley (Hordeum vulgare L.) among the highest priority crops for the North Africa region.

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The potential contribution of wild barley (Hordeum vulgare ssp. spontaneum) germplasm to drought tolerance of cultivated barley (H. vulgare ssp. vulgare)

Cited by 52 publications

References 20 publications

Quantitative trait loci for agronomic traits in an elite barley population for Mediterranean conditions

Quantitative trait loci for agronomic traits in an elite barley population for Mediterranean conditions

Raising Crop Productivity in Africa through Intensification

Towards the conservation of crop wild relative diversity in North Africa: checklist, prioritisation and inventory

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