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Yadav, O. P.; Weltzien-Rattunde, Eva; Bidinger, F. R.; Mahalakshmi, V.

doi:10.1023/a:1003965025727

Cited by 39 publications

(5 citation statements)

References 13 publications

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“…Br.] (Yadav, Weltzien-Rattunde, Bidinger, & Mahalakshmi, 2000) and maize (Makumbi, Betrán, Bänziger, & Ribaut, 2011). In rice, QTL responsible for enhanced yield under drought have been mapped and used to improve the rice mega variety IR64 (Swamy et al, 2013).…”

Section: Crop Sciencementioning

confidence: 99%

Novel sources of drought tolerance from landraces and wild sorghum relatives

et al. 2020

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Sorghum (Sorghum bicolor [L.] Moench) is the fifth most important cereal crop worldwide and second after maize (Zea mays L.) in Kenya. It is an important food security crop in arid and semi-arid lands, where its production potential is hampered by drought. Drought tolerance can be measured by a plant's ability to resist premature senescence, often described as stay-green. This study was carried out with the objective of identifying novel stay-green trait among wild and landrace genotypes of sorghum. Forty-four sorghum genotypes that included 16 improved, nine landraces, and 17 wild relatives of sorghum alongside known stay-green sources, B35 and E36-1, were evaluated under well-watered and water-stressed conditions in an alpha-lattice design of three replications. Data was collected on plant height (PHT), flag leaf area (FLA), panicle weight (PWT), 100-seed weight (HSW), relative chlorophyll content (RCC), number of green leaves at maturity (GLAM), days to 50% flowering (DFL), and grain yield (YLD). Genetic diversity was determined using diversity arrays technology (DArT) sequencing and quality control (QC) markers were generated using a java script. Lodoka, a landrace, was the most drought-tolerant genotype, recorded the highest numbers of RCC and GLAM, and outperformed B35 and E36-1 in yield under water-stress and well-watered conditions. The RCC was highly correlated with GLAM (r = .71) and with yield-related traits, HSW (r = .85), PWT (r = .82), and YLD (r = .78). All traits revealed high heritability (broad-sense) ranging from 60.14 to 98.4% for RCC and DFL, respectively. These results confirm earlier reports that wild relatives and landraces are a good source of drought tolerance alleles.

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Section: Crop Sciencementioning

confidence: 99%

Novel sources of drought tolerance from landraces and wild sorghum relatives

et al. 2020

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“…On the other hand, population hybrids exploit a relatively small part of the total heterosis. Topcross hybrids are also stable, exploit more heterosis than population hybrids, and have already proven their value in harsh drylands (Bidinger et al, 1994;Yadav et al, 2000;Gemenet et al, 2014). Nevertheless, a large-scale, multienvironment stability study comparing populations and topcross and single-cross hybrids in a genetically balanced setup is necessary to find the best option for WA.…”

Section: Prospects and Recommendations For Future Pearl Millet Hybridmentioning

confidence: 99%

Identification of Combining Ability Patterns for Pearl Millet Hybrid Breeding in West Africa

et al. 2019

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Diets of West African (WA) smallholder farmers are built on pearl millet [Pennisetum glaucum (L.) R. Br.]. Sustainable pearl millet hybrid breeding is challenging in WA, mostly due to an extensive genetic diversity combined with a high degree of admixture. In the absence of natural heterotic groups, understanding combining ability patterns can enable systematic development of heterotic groups and make sustainable hybrid breeding feasible. The objectives of this study were to evaluate heterosis and combining ability patterns and their relationship with genetic distance among WA pearl millets based on population hybrids, and to derive conclusions for future breeding programs. Therefore, 17 open‐pollinated varieties (OPVs) were crossed in a diallel mating design and tested together with their offspring in nine environments over 2 yr in Niger and Senegal. Genetic distances between the OPVs were evaluated with twenty microsatellite markers. Average panmictic better‐parent heterosis (PBPH) was 18% (1–47%) for panicle yield. A principal coordinate analysis based on genotyping results separated parental OPVs clearly by geographic origin. Although there was no relationship between genetic distance among OPVs and PBPH, we confirmed good combining ability among selected OPVs from Niger vs. Senegal. The identified cultivars (Nigerien CIVT, H80‐10Gr, and Taram and Senegalese Thialack 2 and Souna 3) with high combining ability are recommended for founding divergent heterotic pools targeting long‐panicle pearl millet hybrids. Our study shows the benefits of population hybrids and represents an important step to identify combining ability patterns and initial heterotic groups for WA pearl millet hybrid breeding.

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“…The yield potential of pearl millet is substantially dependent on the heterozygosity of the genotypes, which can be influenced by breeding open-pollinated, synthetic, and hybrid varieties. Several studies on Indian and West African pearl millet have shown superiority of hybrid varieties compared with population varieties (Burton and Powell, 1968;Bidinger et al, 1994;Ouendeba et al, 1995;Yadav et al, 2000). In hybrid breeding, development of heterotic groups is a basic requirement for efficient breeding of highly heterozygous, well-adapted hybrid varieties.…”

Section: Usefulness Of the Present Data For Heterotic Groupingmentioning

confidence: 99%

Agro‐morphological Characterization of West and Central African Pearl Millet Accessions

Pucher

Sy²,

Angarawai

et al. 2015

Crop Science

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Pearl millet [Pennisetum glaucum (L.) R. Br.] was domesticated in Sahelian West Africa. This highly outcrossing crop is one of the most important staple cereals in the semiarid tropics, adapted to very harsh rain‐fed conditions. Agro‐morphological characterization of local germplasm is very important to better understand existing diversity, ease targeted genetic broadening of breeding populations, and potentially link this knowledge to genotypic information. The objectives of our study were to (i) characterize West and Central African (WCA) pearl millet accessions based on their agro‐morphological traits; (ii) evaluate the possibility to group accessions based on their agro‐morphological characteristics; (iii) determine geographic patterns of phenotypic differentiation; and (iv) derive conclusions for pearl millet improvement in WCA. A total of 360 early‐to‐medium maturity accessions were phenotyped for 12 agro‐morphological traits at six environments in WCA. Wide ranges of all observed traits indicated a high diversity of the tested accessions. Principal component analysis revealed very large diversity within individual countries, especially within Mali and Burkina Faso. Some limited grouping of accessions from Niger, Senegal, Cameroon, Morocco, and Mauritania was observed for individual principal component axes. Geographical differentiation and country differences were detected for several traits. The results and data presented in our study reflect WCA pearl millets’ tremendous diversity and adaptability to a wide range of environments and give a sound basis for breeders to select and utilize this germplasm to serve the manifold needs of WCA pearl millet farmers.

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Cited by 39 publications

References 13 publications

Novel sources of drought tolerance from landraces and wild sorghum relatives

Novel sources of drought tolerance from landraces and wild sorghum relatives

Identification of Combining Ability Patterns for Pearl Millet Hybrid Breeding in West Africa

Agro‐morphological Characterization of West and Central African Pearl Millet Accessions

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