Journal articles 2012
Documents
Plant nutrition: Rooting for more phosphorus
Kochian LV (2012). Plant nutrition: Rooting for more phosphorus. Nature 488(7412):466–467. (DOI: 10.1038/488466a). Not open access: view abstract online
Kochian LV (2012). Plant nutrition: Rooting for more phosphorus. Nature 488(7412):466–467. (DOI: 10.1038/488466a). Not open access: view abstract online
Gene expression profile of wheat seedling response to drought stress by cDNA-AFLP
Zhang Y, Li J, Wang Z, Fan Z, Wang H, Zhang H (2012). Gene expression profile of wheat seedling response to drought stress by cDNA-AFLP. Journal of Triticeae Crops 32(2):240–244. (G7010.02.01). Article in Chinese with abstract in English. Not open access: view online
Drought is one of the most adverse environmental factors affecting wheat yield and quality. Under drought stress, target genes in wheat could be activated and expressed to produce drought-induced proteins, enabling plants to actively adapt to drought, and to maintain survival and yield formation. So, studying on drought-induced proteins and the related genes is essential for future genetic engineering and crop breeding of drought-resisting and water-saving. The objective of this research is to analyse the gene expression profile of wheat under drought stress, and to detect the fragments related to drought-resistant gene expression. Genes induced by drought stress in the seedling of Xinjiang spring wheat cultivar Xinchun 6 at 2-leaf stage were analysed by cDNA-AFLP techniques.
Zhang Y, Li J, Wang Z, Fan Z, Wang H, Zhang H (2012). Gene expression profile of wheat seedling response to drought stress by cDNA-AFLP. Journal of Triticeae Crops 32(2):240–244. (G7010.02.01). Article in Chinese with abstract in English. Not open access: view online
Drought is one of the most adverse environmental factors affecting wheat yield and quality. Under drought stress, target genes in wheat could be activated and expressed to produce drought-induced proteins, enabling plants to actively adapt to drought, and to maintain survival and yield formation. So, studying on drought-induced proteins and the related genes is essential for future genetic engineering and crop breeding of drought-resisting and water-saving. The objective of this research is to analyse the gene expression profile of wheat under drought stress, and to detect the fragments related to drought-resistant gene expression. Genes induced by drought stress in the seedling of Xinjiang spring wheat cultivar Xinchun 6 at 2-leaf stage were analysed by cDNA-AFLP techniques.
Phenotyping pearl millet for adaptation to drought
Vadez V, Hash T, Bidinger FR and Kholova J (2012). Phenotyping pearl millet for adaptation to drought. Frontiers in Plant Physiology 3:386. (DOI: 10.3389/fphys.2012.00386).
Pearl millet is highly resilient to some of the driest areas of the world, like the Sahel area or fringes of the Thar desert in India. Despite this, there is a wealth of variation in pearl millet genotypes for their adaptation to drought and the object of this paper was to review some related work in the past 25 years to harness these capacities toward the breeding of better adapted cultivars. Work on short duration cultivars has been a major effort. Pearl millet has also some development plasticity thanks to a high tillering ability, which allows compensating for possible drought-related failure of the main culm under intermittent drought. The development of molecular tools for breeding has made great progress in the last 10–15 years and markers, maps, EST libraries, BACs are now available and a number of quantitative trait loci (QTLs) for different traits, including drought, have been identified. Most of the work on drought has focused on the drought tolerance index (DTI), an index that reflect the genetic differences in drought adaptation that are independent of flowering time and yield potential.
Vadez V, Hash T, Bidinger FR and Kholova J (2012). Phenotyping pearl millet for adaptation to drought. Frontiers in Plant Physiology 3:386. (DOI: 10.3389/fphys.2012.00386).
Pearl millet is highly resilient to some of the driest areas of the world, like the Sahel area or fringes of the Thar desert in India. Despite this, there is a wealth of variation in pearl millet genotypes for their adaptation to drought and the object of this paper was to review some related work in the past 25 years to harness these capacities toward the breeding of better adapted cultivars. Work on short duration cultivars has been a major effort. Pearl millet has also some development plasticity thanks to a high tillering ability, which allows compensating for possible drought-related failure of the main culm under intermittent drought. The development of molecular tools for breeding has made great progress in the last 10–15 years and markers, maps, EST libraries, BACs are now available and a number of quantitative trait loci (QTLs) for different traits, including drought, have been identified. Most of the work on drought has focused on the drought tolerance index (DTI), an index that reflect the genetic differences in drought adaptation that are independent of flowering time and yield potential.
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.
Exploring elite alleles for chlorophyll content of flag leaf in natural population of wheat association analysis
Li W, Zhang B, Zhang J, Chang X, Li R, Jing R (2012). Exploring elite alleles for chlorophyll content of flag leaf in natural population of wheat association analysis. Acta Agronomica Sinica 38(6):962–970. (DOI: 10.3724/SP.J.1006.2012.00962). (G7010.02.01). Article in Chinese with abstract in English. Not open access: view online
Elite alleles associated with chlorophyll content of flag leaf in a natural population of winter wheat (Triticum aestivum L.) consisting of 262 accessions were measured at flowering and grain-filling stages under both rainfed and well-watered conditions in two experimental locations in Beijing, China. A total of 169 SSR markers distributed on the 21 chromosomes of wheat were employed to detect the genetic diversity and genetic structure of the population. Association analysis between SSR loci and chlorophyll content trait was performed using TASSEL MLM (mixed linear model) program.
Li W, Zhang B, Zhang J, Chang X, Li R, Jing R (2012). Exploring elite alleles for chlorophyll content of flag leaf in natural population of wheat association analysis. Acta Agronomica Sinica 38(6):962–970. (DOI: 10.3724/SP.J.1006.2012.00962). (G7010.02.01). Article in Chinese with abstract in English. Not open access: view online
Elite alleles associated with chlorophyll content of flag leaf in a natural population of winter wheat (Triticum aestivum L.) consisting of 262 accessions were measured at flowering and grain-filling stages under both rainfed and well-watered conditions in two experimental locations in Beijing, China. A total of 169 SSR markers distributed on the 21 chromosomes of wheat were employed to detect the genetic diversity and genetic structure of the population. Association analysis between SSR loci and chlorophyll content trait was performed using TASSEL MLM (mixed linear model) program.
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.
Field phenotyping strategies and breeding for adaptation of rice to drought
Fischer KS, Fukai S, Kumar A, Leung H and Jongdee B (2012). Field phenotyping strategies and breeding for adaptation of rice to drought. Frontiers in Plant Physiology 3:282. (DOI: 10.3389/fphys.2012.00282).
This paper is a section of the book “Drought phenotyping in crops: from theory to practice” (Monneveux Philippe and Ribaut Jean-Marcel eds, published by CGIAR Generation Chal-lenge Programme. Texcoco, Mexico). The section describes recent experience in drought phenotyping in rice which is one of the most drought-susceptible crops. The section contains genetic and genomic resources for drought adaptation and methods for selection of drought-resistant varieties in rice. In appendix, there is experience from Thailand on integration of direct selection for grain yield and physiological traits to confer drought resistance.
Fischer KS, Fukai S, Kumar A, Leung H and Jongdee B (2012). Field phenotyping strategies and breeding for adaptation of rice to drought. Frontiers in Plant Physiology 3:282. (DOI: 10.3389/fphys.2012.00282).
This paper is a section of the book “Drought phenotyping in crops: from theory to practice” (Monneveux Philippe and Ribaut Jean-Marcel eds, published by CGIAR Generation Chal-lenge Programme. Texcoco, Mexico). The section describes recent experience in drought phenotyping in rice which is one of the most drought-susceptible crops. The section contains genetic and genomic resources for drought adaptation and methods for selection of drought-resistant varieties in rice. In appendix, there is experience from Thailand on integration of direct selection for grain yield and physiological traits to confer drought resistance.
Gray association grade analysis of physiological traits with yield of wheat under different water regimes
Shi W, Chang X, Jing R (2012). Gray association grade analysis of physiological traits with yield of wheat under different water regimes. Journal of Triticeae Crops 32(4):653–659. (G7010.02.01). Article in Chinese with abstract in English. Not open access: view online
The purpose of the present research is to reveal the variation of canopy temperature and photosynthetic characteristics and their impact on wheat (Triticum aestivum L.) yield under drought stress. A set of introgression BC3F5 lines (ILs) generated from repeated backcross [(Lumai 14 X Jinmai 47) X Lumai 14] were used as the plant materials. The donor parent Jinmai 47 was a drought tolerant cultivar, the recurrent parent Lumai 14 as a high yield potential cultivar under well-watered condition.
Shi W, Chang X, Jing R (2012). Gray association grade analysis of physiological traits with yield of wheat under different water regimes. Journal of Triticeae Crops 32(4):653–659. (G7010.02.01). Article in Chinese with abstract in English. Not open access: view online
The purpose of the present research is to reveal the variation of canopy temperature and photosynthetic characteristics and their impact on wheat (Triticum aestivum L.) yield under drought stress. A set of introgression BC3F5 lines (ILs) generated from repeated backcross [(Lumai 14 X Jinmai 47) X Lumai 14] were used as the plant materials. The donor parent Jinmai 47 was a drought tolerant cultivar, the recurrent parent Lumai 14 as a high yield potential cultivar under well-watered condition.
Next-generation sequencing technologies: opportunities and obligations in plant genomics
Varshney RK and May GD (2012). Next-generation sequencing technologies: opportunities and obligations in plant genomics. Briefings in Functional Genomics 11(1):1–2. (DOI: 10.1093/bfgp/els001). Not open access: view abstract
Varshney RK and May GD (2012). Next-generation sequencing technologies: opportunities and obligations in plant genomics. Briefings in Functional Genomics 11(1):1–2. (DOI: 10.1093/bfgp/els001). Not open access: view abstract
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.
