Journal articles 2012
Documents
Sequence polymorphism and mapping of wheat Ca2+-binding protein TaCRT-A gene
Wang J, Mao X, Li R, Jing R (2012). Sequence polymorphism and mapping of wheat Ca2+-binding protein TaCRT-A gene. Chinese Journal of Applied Ecology 23(9):2536 –2542. (G7010.02.01). Article in Chinese with abstract in English. Not open access: view online
Taking thirty-seven hexaploid wheat (AABBDD) accessions with different drought resistance at seedling stage, three wheat species with A genome (AA), and three tetraploid wheat species (AABB) as test materials, and by direct sequencing the single nucleotide polymorphism (SNP) in TaCRTA, this paper analysed the relationships of the SNP with the drought resistance of wheat (Triticum aestivum) at its seedling stage, and mapped the TaCRTA on the chromosome of wheat.
Wang J, Mao X, Li R, Jing R (2012). Sequence polymorphism and mapping of wheat Ca2+-binding protein TaCRT-A gene. Chinese Journal of Applied Ecology 23(9):2536 –2542. (G7010.02.01). Article in Chinese with abstract in English. Not open access: view online
Taking thirty-seven hexaploid wheat (AABBDD) accessions with different drought resistance at seedling stage, three wheat species with A genome (AA), and three tetraploid wheat species (AABB) as test materials, and by direct sequencing the single nucleotide polymorphism (SNP) in TaCRTA, this paper analysed the relationships of the SNP with the drought resistance of wheat (Triticum aestivum) at its seedling stage, and mapped the TaCRTA on the chromosome of wheat.
Selection strategy for sorghum targeting phosphorus-limited environments in West Africa: analysis of multi-environment experiments
Leiser, WL, Rattunde HFW, Piepho H-P, Weltzien E, Diallo A, Melchinger AE, Parzies HK, Haussmann BIG (2012). Selection strategy for sorghum targeting phosphorus-limited environments in West Africa: analysis of multi-environment experiments. Crop Science 52(6):2517–2527. (DOI: 10.2135/cropsci2012.02.0139). (G7010.03.03). Not open access: view abstract
Leiser, WL, Rattunde HFW, Piepho H-P, Weltzien E, Diallo A, Melchinger AE, Parzies HK, Haussmann BIG (2012). Selection strategy for sorghum targeting phosphorus-limited environments in West Africa: analysis of multi-environment experiments. Crop Science 52(6):2517–2527. (DOI: 10.2135/cropsci2012.02.0139). (G7010.03.03). Not open access: view abstract
Selection of intermittent drought tolerant lines across years and locations in the reference collection of groundnut (Arachis hypogeae L.)
Hamidou F, Ratnakumar P, Halilou O, Mponda O, Kapewa T, Monyo E, Faye I, Ntare BR, Nigam SN, Upadhyaya HD, Vadez V (2012). Selection of intermittent drought tolerant lines across years and locations in the reference collection of groundnut (Arachis hypogeae L.). Field Crops Research 126:189–199, ISSN 0378-4290. (DOI:10.1016/j.fcr.2011.10.009). Not open access: view abstract
Hamidou F, Ratnakumar P, Halilou O, Mponda O, Kapewa T, Monyo E, Faye I, Ntare BR, Nigam SN, Upadhyaya HD, Vadez V (2012). Selection of intermittent drought tolerant lines across years and locations in the reference collection of groundnut (Arachis hypogeae L.). Field Crops Research 126:189–199, ISSN 0378-4290. (DOI:10.1016/j.fcr.2011.10.009). Not open access: view abstract
Screening experimental designs for quantitative trait loci, association mapping, genotype-by environment interaction, and other investigations
Federer WT and Crossa J (2012). Screening experimental designs for quantitative trait loci, association mapping, genotype-by environment interaction, and other investigations. Frontiers in Plant Physiology 3:156. (DOI: 10.3389/fphys.2012.00156).
Crop breeding programs using conventional approaches, as well as new biotechnological tools, rely heavily on data resulting from the evaluation of genotypes in different environmentalconditions (agronomic practices, locations, and years). Statistical methods used for designing field and laboratory trials and for analyzing the data originating from those trials need to be accurate and efficient.The statistical analysis of multi-environment trails (MET)is useful for assessing genotype×environment interaction (GEI), mapping quantitative trait loci (QTLs), and studying QTL×environment interaction (QEI). Large populations are required for scientific study of QEI, and for determining the association between molecular markers and quantitative trait variability.
Federer WT and Crossa J (2012). Screening experimental designs for quantitative trait loci, association mapping, genotype-by environment interaction, and other investigations. Frontiers in Plant Physiology 3:156. (DOI: 10.3389/fphys.2012.00156).
Crop breeding programs using conventional approaches, as well as new biotechnological tools, rely heavily on data resulting from the evaluation of genotypes in different environmentalconditions (agronomic practices, locations, and years). Statistical methods used for designing field and laboratory trials and for analyzing the data originating from those trials need to be accurate and efficient.The statistical analysis of multi-environment trails (MET)is useful for assessing genotype×environment interaction (GEI), mapping quantitative trait loci (QTLs), and studying QTL×environment interaction (QEI). Large populations are required for scientific study of QEI, and for determining the association between molecular markers and quantitative trait variability.
Root attributes affecting water uptake of rice (Oryza sativa) under drought
Henry A, Cal AJ, Batoto TC, Torres RO, Serraj R (2012). Root attributes affecting water uptake of rice (Oryza sativa) under drought. Journal of Experimental Botany 63(13):4751–4763. (DOI: 10.1093/jxb/ers150). (G3008.06).
Lowland rice roots have a unique physiological response to drought because of their adaptation to flooded soil. Rice root attributes that facilitate growth under flooded conditions may affect rice response to drought, but the relative roles of root structural and functional characteristics for water uptake under drought in rice are not known. Morphological, anatomical, biochemical, and molecular attributes of soil-grown rice roots were measured to investigate the genotypic variability and genotype×environment interactions of water uptake under variable soil water regimes. Drought-resistant genotypes had the lowest night-time bleeding rates of sap from the root system in the field. Diurnal fluctuation predominated as the strongest source of variation for bleeding rates in the field and root hydraulic conductivity (Lpr) in the greenhouse, and was related to expression trends of various PIP and TIP aquapor- ins. Root anatomy was generally more responsive to drought treatments in drought-resistant genotypes. Suberization and compaction of sclerenchyma layer cells decreased under drought, whereas suberization of the endodermis increased, suggesting differential roles of these two cell layers for the retention of oxygen under flooded conditions (sclerenchyma layer) and retention of water under drought (endodermis). The results of this study point to the genetic variability in responsiveness to drought of rice roots in terms of morphology, anatomy, and function.
Henry A, Cal AJ, Batoto TC, Torres RO, Serraj R (2012). Root attributes affecting water uptake of rice (Oryza sativa) under drought. Journal of Experimental Botany 63(13):4751–4763. (DOI: 10.1093/jxb/ers150). (G3008.06).
Lowland rice roots have a unique physiological response to drought because of their adaptation to flooded soil. Rice root attributes that facilitate growth under flooded conditions may affect rice response to drought, but the relative roles of root structural and functional characteristics for water uptake under drought in rice are not known. Morphological, anatomical, biochemical, and molecular attributes of soil-grown rice roots were measured to investigate the genotypic variability and genotype×environment interactions of water uptake under variable soil water regimes. Drought-resistant genotypes had the lowest night-time bleeding rates of sap from the root system in the field. Diurnal fluctuation predominated as the strongest source of variation for bleeding rates in the field and root hydraulic conductivity (Lpr) in the greenhouse, and was related to expression trends of various PIP and TIP aquapor- ins. Root anatomy was generally more responsive to drought treatments in drought-resistant genotypes. Suberization and compaction of sclerenchyma layer cells decreased under drought, whereas suberization of the endodermis increased, suggesting differential roles of these two cell layers for the retention of oxygen under flooded conditions (sclerenchyma layer) and retention of water under drought (endodermis). The results of this study point to the genetic variability in responsiveness to drought of rice roots in terms of morphology, anatomy, and function.
File article (2.27 MB)
Quantitative trait locus analysis and construction of consensus genetic map for foliar disease resistance based on two recombinant inbred line populations in cultivated groundnut (Arachis hypogaea L.)
Sujay V, Gowda MVC, Pandey MK, Bhat RS, Khedikar YP, Nadaf HL, Gautami B, Sarvamangala BC, Lingaraju S, Radhakrishan T, Knapp SJ, Varshney RK (2012). Quantitative trait locus analysis and construction of consensus genetic map for foliar disease resistance based on two recombinant inbred line populations in cultivated groundnut (Arachis hypogaea L.). Molecular Breeding 30(2):773–788. (DOI: 10.1007/s11032-011-9661-z)
Late leaf spot (LLS) and rust have the greatest impact on yield losses worldwide in groundnut (Arachis hypogaea L.). With the objective of identifying tightly linked markers to these diseases, a total of 3,097 simple sequence repeats (SSRs) were screened on the parents of two recombinant inbred line (RIL) populations, namely TAG 24 9 GPBD 4 (RIL-4) and TG 26 9 GPBD 4 (RIL-5), and segregation data were obtained for 209 marker loci for each of the mapping populations. Linkage map analysis of the 209 loci resulted in the mapping of 188 and 181 loci in RIL-4 and RIL-5 respectively. Using 143 markers.
Sujay V, Gowda MVC, Pandey MK, Bhat RS, Khedikar YP, Nadaf HL, Gautami B, Sarvamangala BC, Lingaraju S, Radhakrishan T, Knapp SJ, Varshney RK (2012). Quantitative trait locus analysis and construction of consensus genetic map for foliar disease resistance based on two recombinant inbred line populations in cultivated groundnut (Arachis hypogaea L.). Molecular Breeding 30(2):773–788. (DOI: 10.1007/s11032-011-9661-z)
Late leaf spot (LLS) and rust have the greatest impact on yield losses worldwide in groundnut (Arachis hypogaea L.). With the objective of identifying tightly linked markers to these diseases, a total of 3,097 simple sequence repeats (SSRs) were screened on the parents of two recombinant inbred line (RIL) populations, namely TAG 24 9 GPBD 4 (RIL-4) and TG 26 9 GPBD 4 (RIL-5), and segregation data were obtained for 209 marker loci for each of the mapping populations. Linkage map analysis of the 209 loci resulted in the mapping of 188 and 181 loci in RIL-4 and RIL-5 respectively. Using 143 markers.
Quantitative trait loci and breeding
Fleury D, Delannay X and Langridge P (2012). Quantitative trait loci and breeding. eLS published online. (DOI: 10.1002/9780470015902.a0023712). Not open access: view abstract
Fleury D, Delannay X and Langridge P (2012). Quantitative trait loci and breeding. eLS published online. (DOI: 10.1002/9780470015902.a0023712). Not open access: view abstract
QTL Analysis for root protein in a backcross family of cassava derived from Manihot esculenta ssp flabellifolia
Akinbo O, Labuschagne MT, Marín J, Ospina C, Santos L, Barrera E, Gutiérrez J, Ewa F, Okogbenin E, Fregene M (2012). QTL Analysis for root protein in a backcross family of cassava derived from Manihot esculenta ssp flabellifolia. Tropical Plant Biology Published online 21 February 2012. 12pp. (DOI: 10.1007/s12042-012-9095-8). Not open access: view abstract
Akinbo O, Labuschagne MT, Marín J, Ospina C, Santos L, Barrera E, Gutiérrez J, Ewa F, Okogbenin E, Fregene M (2012). QTL Analysis for root protein in a backcross family of cassava derived from Manihot esculenta ssp flabellifolia. Tropical Plant Biology Published online 21 February 2012. 12pp. (DOI: 10.1007/s12042-012-9095-8). Not open access: view abstract
Probability of success of breeding strategies for improving pro-vitamin A content in maize
Zhang X, Pfeiffer WH, Palacios-Rojas N, Babu R, Bouis H and Wang J (20102). Probability of success of breeding strategies for improving pro-vitamin A content in maize. Theoretical and Applied Genetics 125(2):235–246. (DOI: 10.1007/s00122-012-1828-4). (IBP project, G8009) Not open access: view abstract
Zhang X, Pfeiffer WH, Palacios-Rojas N, Babu R, Bouis H and Wang J (20102). Probability of success of breeding strategies for improving pro-vitamin A content in maize. Theoretical and Applied Genetics 125(2):235–246. (DOI: 10.1007/s00122-012-1828-4). (IBP project, G8009) Not open access: view abstract
Primary identification and evaluation of wheat germplasm from Generation Challenge Programme
Zhang J, Sun M, Zhang D, Yan J, Shen S (2012). Primary identification and evaluation of wheat germplasm from Generation Challenge Programme. Journal of Shanxi Agricultural Sciences 40(5):429–432. (DOI: 10.3969/j.issn.1002-2481.2012.05.01). (G7010.02.01). Article in Chinese with abstract in English. Not open access: view online
An identification and evaluation for 1 000 seed weight, grain number per ear, ear number per plant, plant height, plumpness of kernels and yield of 146 wheat germplasms from GCP projects were conducted. The results showed that: the tested varieties had a wealth of genetic diversity in yield, grain number per ears, ear number per plant and so on; there were different correlations in each trait; heading and maturity stages had effects to grain number per ear, yield and 1 000 seed weight. We had successfully selected 8 big ear fertility varieties, 8 big grain fertility varieties, 5 short stalk fertilities and 25 fine varieties of super traits and outstanding fertility.
Zhang J, Sun M, Zhang D, Yan J, Shen S (2012). Primary identification and evaluation of wheat germplasm from Generation Challenge Programme. Journal of Shanxi Agricultural Sciences 40(5):429–432. (DOI: 10.3969/j.issn.1002-2481.2012.05.01). (G7010.02.01). Article in Chinese with abstract in English. Not open access: view online
An identification and evaluation for 1 000 seed weight, grain number per ear, ear number per plant, plant height, plumpness of kernels and yield of 146 wheat germplasms from GCP projects were conducted. The results showed that: the tested varieties had a wealth of genetic diversity in yield, grain number per ears, ear number per plant and so on; there were different correlations in each trait; heading and maturity stages had effects to grain number per ear, yield and 1 000 seed weight. We had successfully selected 8 big ear fertility varieties, 8 big grain fertility varieties, 5 short stalk fertilities and 25 fine varieties of super traits and outstanding fertility.
