Algerian maize populations from the Sahara desert as potential sources of drought tolerance

Djemel, Abderahmane; Álvarez-Iglesias, Lorena; Santiago, Rogelio; Malvar, R. A.; Pedrol, Nuria; Revilla, Pedro

doi:10.1007/s11738-019-2806-0

Cited by 12 publications

(11 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The potential value of Algerian germplasm has been previously reported with other populations from the same area (Djemel et al 2012(Djemel et al , 2017(Djemel et al , 2019. EPS14(FR)C3 and EPS13(FR)C3 represent the germplasm adapted to the Mediterranean area and the Atlantic coast of Spain, respectively, and the US Dent 9 European Flint hybrids (A239 9 EP74 and A638 9 EP56) belong to the most common group of germplasm grown in Europe.…”

Section: Discussionmentioning

confidence: 72%

“…Populations from the Algerian Sahara can be potential sources of favorable alleles for drought tolerance that can be incorporated into elite temperate varieties. Djemel et al (2019) evaluated a collection of 18 maize populations from Saharan oases under simulated drought conditions and in the field, and identified drought tolerant populations based on germination, root development, yield, and water use efficiency (WUE). They concluded that populations show diverse mechanisms for drought tolerance potentially useful for maize breeding programs.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Adaptation assessment of drought tolerance in maize populations from the Sahara in both shores of the Mediterranean Sea

et al. 2021

Self Cite

View full text Add to dashboard Cite

Drought is the main stress for agriculture, and maize (Zea mays L.) germplasm from the Sahara has been identified as potential source of drought tolerance; however, information about adaptation of semitropical maize germplasm from the Sahara to temperate areas has not been reported. Our objective was assessing the adaptation of maize germplasm from Saharan oases as sources of drought tolerance for improving yield and biomass production under drought conditions in temperate environments. A collection of maize populations from Saharan oases was evaluated under drought and control conditions in Spain and Algeria. Algerian populations were significantly different under drought for most traits, and the significant genotype × environment interactions indicated that drought tolerance is genotype-dependent, but tolerance differences among genotypes change across environments. Based on yield, the Algerian maize populations PI527474, PI527478, PI527472, PI527467, PI527470, and PI527473 would be appropriate sources of drought tolerance for temperate environments. Concerning biomass production, the most interesting populations were PI527467, PI542685, PI527478, and PI527472. These Saharan populations could provide favorable alleles for drought tolerance for temperate breeding programs, and could also be used for studying mechanisms and genetic regulation of drought tolerance.

show abstract

Section: Discussionmentioning

confidence: 72%

Section: Introductionmentioning

confidence: 99%

Adaptation assessment of drought tolerance in maize populations from the Sahara in both shores of the Mediterranean Sea

et al. 2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…Consequently, drought tolerance should be a major objective of breeding programs. Sources of drought tolerance have been reported in tropical environments [3] and we have identified semitropical Algerian maize populations from the Sahara as potential sources of drought tolerance for temperate environments [4][5][6]. However, the adaptation of photoperiod-sensitive varieties from lower latitudes to temperate areas is another limiting factor.…”

Section: Introductionmentioning

confidence: 87%

Assessment of Algerian Maize Populations for Saccharification and Nutritive Value

et al. 2020

Self Cite

View full text Add to dashboard Cite

Maize (Zea mays L.) from the Algerian Sahara was adapted to arid conditions and has been used for food and feed. The objective of this work was to assess the potential value of Saharan maize for saccharification and nutritive value under drought conditions. Eighteen maize populations from the Algerian Sahara were evaluated under drought and control conditions and representative samples of those populations were taken for nutrients and saccharification analyses. The evaluation of saccharification was made in one Spanish trial under drought and control conditions. Differences among Algerian populations for nutritive value were significant for starch and ash, but not for lipids and proteins. Drought-reduced saccharification yield and differences among populations were significant for saccharification potential under drought conditions, and for saccharification yield under both drought and control conditions. The Algerian populations PI527465 and PI542689 had high grain starch and low ash, PI527469 and PI527474 had a balanced nutritional value, and PI527475 and PI542683 had low grain starch and moderately high ash. Besides high nutritional value, the drought-tolerant population PI542683 had high saccharification under drought conditions. Most agronomic traits had no significant effects on saccharification, and some grain nutrients affected saccharification and agronomic performance. Therefore, improving the nutritive value of grain and saccharification of stover, while maintaining agronomic performance, could be feasible, attending to the weak interactions between them.

show abstract

“…Because the assessment of root behavior is not possible in the field [ 38 ], several authors have reported that the induction of water stress by Polyethylene glycol (PEG) is a reliable approach for the assessment of water stress in germplasm collections of maize [ 39 , 40 , 41 ]. This approach has been used for the study of water stress at early stages [ 41 , 42 , 43 , 44 , 45 ]. Direct studies on root traits are highly complex.…”

Section: Introductionmentioning

confidence: 99%

Genetics of Germination and Seedling Traits under Drought Stress in a MAGIC Population of Maize

Rida

Maafi

Lozano

et al. 2021

Plants

Self Cite

View full text Add to dashboard Cite

Drought is one of the most detrimental abiotic stresses hampering seed germination, development, and productivity. Maize is more sensitive to drought than other cereals, especially at seedling stage. Our objective was to study genetic regulation of drought tolerance at germination and during seedling growth in maize. We evaluated 420 RIL with their parents from a multi-parent advanced generation inter-cross (MAGIC) population with PEG-induced drought at germination and seedling establishment. A genome-wide association study (GWAS) was carried out to identify genomic regions associated with drought tolerance. GWAS identified 28 and 16 SNPs significantly associated with germination and seedling traits under stress and well-watered conditions, respectively. Among the SNPs detected, two SNPs had significant associations with several traits with high positive correlations, suggesting a pleiotropic genetic control. Other SNPs were located in regions that harbored major QTLs in previous studies, and co-located with QTLs for cold tolerance previously published for this MAGIC population. The genomic regions comprised several candidate genes related to stresses and plant development. These included numerous drought-responsive genes and transcription factors implicated in germination, seedling traits, and drought tolerance. The current analyses provide information and tools for subsequent studies and breeding programs for improving drought tolerance.

show abstract

Algerian maize populations from the Sahara desert as potential sources of drought tolerance

Cited by 12 publications

References 32 publications

Adaptation assessment of drought tolerance in maize populations from the Sahara in both shores of the Mediterranean Sea

Adaptation assessment of drought tolerance in maize populations from the Sahara in both shores of the Mediterranean Sea

Assessment of Algerian Maize Populations for Saccharification and Nutritive Value

Genetics of Germination and Seedling Traits under Drought Stress in a MAGIC Population of Maize

Contact Info

Product

Resources

About