Drought resistance in an interspecific backcross population of rice (Oryza spp.) derived from the cross WAB56-104 (O. sativa)×CG14 (O. glaberrima)

Ndjiondjop, Marie Noëlle; Manneh, Baboucarr; Cissoko, Mamadou; Dramé, Khady Nani; Kakaï, Romain Lucas Glèlè; Bocco, Roland; Baïmey, Hugues; Wopereis, M.C.S.

doi:10.1016/j.plantsci.2010.06.006

Cited by 48 publications

(40 citation statements)

References 23 publications

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“…Significant G × E interactions were observed in this study for a number of traits evaluated in the 2 yr but the significance of theses interactions vary with the genotype group. These results concur with those of Ndjiondjop et al (2010b) and of Fukai and Cooper (2002). Cooper et al (1999) reported the timing and intensity of drought as one of the main causes for large G × E interaction.…”

Section: Discussionsupporting

confidence: 93%

“…The negative effect of drought on plant height, leaf width, tillering ability, and grain yield as well as its effect of delaying flowering and maturity and increasing leaf temperature and SPAD values have been observed before (Gui‐Hua et al, 2007; Ndjiondjop et al, 2010b). These findings were consistent over the two experiments and the traits might be used as reliable selection criteria in evaluating drought susceptibility.…”

Section: Discussionmentioning

confidence: 70%

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Field Evaluation of Rice Genotypes from the Two Cultivated Species (Oryza sativa L. and Oryza glaberrima Steud.) and Their Interspecifics for Tolerance to Drought

et al. 2012

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A total of 327 rice {Oryza spp.) genotypes were screened for tolerance to drought af the Africa Rice Center in Cotonou, Benin, in 2007 and. Plants were subjected to full irrigation fronn sowing to harvest or to 21-d drought from 34 d after sowing. Drought-affected plants showed narrower leaves, reduced grain yield, and shorter stature. Tillering and plant maturity were negatively affected by drought whereas values for leaf temperature and leaf greenness were significantly higher under drought than under control condition. Under control condition, for 54% of genotypes, flowering occurred between 71 and 90 d after sowing. But under drought, flowering occurred af 90 or more days after sowing for fhe majority of genotypes. Significant genotype x environment interactions were observed for plant height, leaf greenness, flowering, grain yield, maturity, leaf rolling, and leaf tip burning. More traits were correlated with grain yield under drought for Oryza glaberrima Steud. than for other genotype groups. No relationship was observed between plant recovery ability and all other traits selected. More than 90% of plants evaluated resumed growth after drought in both years. TOG6208, TOG5691, TOG5591, TOG6594, and RAM122 were identified as best performing genotypes in terms of grain yield under drought. Their performance was similar fo that of most of fhe 24 top yielding in terms of leaf rolling, leaf tip burning, and plant recovery after drought release.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 70%

Field Evaluation of Rice Genotypes from the Two Cultivated Species (Oryza sativa L. and Oryza glaberrima Steud.) and Their Interspecifics for Tolerance to Drought

et al. 2012

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“…Almost all the wild rice species have been reported to contain some valuable traits (Table 1; Jena and Khush 2000). Although O. glaberrima is a cultivated species, mainly grown in Africa, it bears numerous interesting genes that can be used to improve O. sativa, including resistance to nematodes (both Heterodera and Meloidogyne genus) and insects (African gall midge; Brar and Khush 2006), viruses (rice yellow mottle virus, rice stripe necrosis virus; Ndjiondjop et al 1999;Gutiérrez et al 2010), and tolerance to drought stress (Ndjiondjop et al 2010;Furuya et al 1994). The first report of transfer of an agronomically important gene from a wild species to cultivated rice was the introgression of grassy stunt virus resistance from O. nivara (Khush et al 1977).…”

Section: Potential Of Wild Rice Speciesmentioning

confidence: 99%

Chromosome Segment Substitution Lines: A Powerful Tool for the Introgression of Valuable Genes from Oryza Wild Species into Cultivated Rice (O. sativa)

Ali¹,

Sanchez

et al. 2010

Rice

144

103

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Wild species of rice (genus Oryza) contain many useful genes but a vast majority of these genes remain untapped to date because it is often difficult to transfer these genes into cultivated rice (Oryza sativa L.). Chromosome segment substitution lines (CSSLs) and backcross inbred lines (BILs) are powerful tools for identifying these naturally occurring, favorable alleles in unadapted germplasm. In this paper, we present an overview of the research involving CSSLs and BILs in the introgression of quantitative trait loci (QTLs) associated with the improved performance of rice including resistance to various biotic and abiotic stresses, and even high yield from wild relatives of rice and other unadapted germplasm into the genetic background of adapted rice cultivars. The CSSLs can be used to dissect quantitative traits into the component genetic factors and evaluate gene action as single factors (monogenic loci). CSSLs have the potential to uncover new alleles from the unadapted, non-productive wild rice accessions, develop genome-wide genetic stocks, and clone genes identified in QTL studies for functional genomics research. Recent development of high-density singlenucleotide polymorphism (SNP) arrays in rice and availability of custom-designed medium-and low-density SNP arrays will enhance the CSSL development process with smaller marker-defined segment introgressions from unadapted germplasm.

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“…[18, 19, 45]. However, little is known about the genetic diversity and phenotypic variation of IL populations in relation to the level of introgression of O .…”

Section: Discussionmentioning

confidence: 99%

Genetic Diversity and Phenotypic Variation in an Introgression Line Population Derived from an Interspecific Cross between Oryza glaberrima and Oryza sativa

Chen¹,

He²,

Nassirou³

et al. 2016

PLoS ONE

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The introduction of closely related species genomic fragments is an effective way to enrich genetic diversity and creates new germplasms in crops. Here, we studied the genetic diversity of an introgression line (IL) population composed of 106 ILs derived from an interspecific tetra cross between O. glaberrima and O. sativa (RAM3/Jin23B//Jin23B///YuetaiB). The proportion of O. glaberrima genome (PGG) in the ILs ranged from 0.3% to 36.7%, with an average value of 12.32% which is close to the theoretically expected proportion. A total of 250 polymorphic alleles were amplified by 21 AFLP primer combinations with an average of 12 alleles per primer. Population structure analysis revealed that the IL population can be divided into four genetically distinct subpopulations. Both principal component analysis and neighbor-joining tree analysis showed that ILs with a higher PGG displayed greater genetic diversity. Canonical discriminant analysis identified six phenotypic traits (plant height, yield per plant, filled grain percentage, panicle length, panicle number and days to flowering) as the main discriminatory traits among the ILs and between the subpopulations and showed significant phenotypic distances between subpopulations. The effects of PGG on phenotypic traits in the ILs were estimated using a linear admixed model, which showed a significant positive effect on grain yield per plant (0.286±0.117), plant height (0.418 ± 0.132), panicle length (0.663 ± 0.107), and spikelet number per panicle (0.339 ± 0.128), and a significant negative effect on filled grain percentage (-0.267 ± 0.123) and days to flowering (-0.324 ± 0.075). We found that an intermediate range (10% − 20%) of PGG was more effective for producing ILs with favorable integrated agronomic traits. Our results confirm that construction of IL population carrying O. glaberrima genomic fragments could be an effective approach to increase the genetic diversity of O. sativa genome and an appropriate level of PGG could facilitate pyramiding more favorable genes for developing more adaptive and productive rice.

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Drought resistance in an interspecific backcross population of rice (Oryza spp.) derived from the cross WAB56-104 (O. sativa)×CG14 (O. glaberrima)

Cited by 48 publications

References 23 publications

Field Evaluation of Rice Genotypes from the Two Cultivated Species (Oryza sativa L. and Oryza glaberrima Steud.) and Their Interspecifics for Tolerance to Drought

Field Evaluation of Rice Genotypes from the Two Cultivated Species (Oryza sativa L. and Oryza glaberrima Steud.) and Their Interspecifics for Tolerance to Drought

Chromosome Segment Substitution Lines: A Powerful Tool for the Introgression of Valuable Genes from Oryza Wild Species into Cultivated Rice (O. sativa)

Genetic Diversity and Phenotypic Variation in an Introgression Line Population Derived from an Interspecific Cross between Oryza glaberrima and Oryza sativa

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