Journal articles 2013
Documents
Aluminium tolerance in maize is associated with higher MATE1 gene copy number
Maron LG, Guimarães CT, Kirst M, Albert PS, Birchler JA, Bradbury P, Buckler ES, Coluccio AE, Danilova TV, Kudrna D, Magalhães JV, Piñeros MA, Schatz MC, Wing RA, Kochian LV (2013). Aluminium tolerance in maize is associated with higher MATE1 gene copy number. PNAS, published online March 11, 2013. (DOI: 10.1073/pnas.1220766110). Not open access: view abstract
Maron LG, Guimarães CT, Kirst M, Albert PS, Birchler JA, Bradbury P, Buckler ES, Coluccio AE, Danilova TV, Kudrna D, Magalhães JV, Piñeros MA, Schatz MC, Wing RA, Kochian LV (2013). Aluminium tolerance in maize is associated with higher MATE1 gene copy number. PNAS, published online March 11, 2013. (DOI: 10.1073/pnas.1220766110). Not open access: view abstract
Phenotyping common beans for adaptation to drought
Beebe SE, Rao IM, Blair MW, Acosta-Gallegos JA(2013). Phenotyping common beans for adaptation to drought. Frontiers in Plant Physiology 4:35. (DOI: 10.3389/fphys.2013.00035).
Common beans (Phaseolus vulgaris L.) originated in the New World and are the grain legume of greatest production for direct human consumption. Common bean production is subject to frequent droughts in highland Mexico, in the Pacific coast of Central America, in northeast Brazil, and in eastern and southern Africa from Ethiopia to South Africa. This article reviews efforts to improve common bean for drought tolerance, referring to genetic diversity for drought response, the physiology of drought tolerance mechanisms, and breeding strategies. Different races of common bean respond differently to drought, with race Durango of highland Mexico being a major source of genes. Sister species of P. vulgaris likewise have unique traits, especially P. acutifolius which is well adapted to dryland conditions. Diverse sources of tolerance may have different mechanisms of plant response, implying the need for different methods of phenotyping to recognize the relevant traits. Practical considerations of field management are discussed including: trial planning; water management; and field preparation.
Beebe SE, Rao IM, Blair MW, Acosta-Gallegos JA(2013). Phenotyping common beans for adaptation to drought. Frontiers in Plant Physiology 4:35. (DOI: 10.3389/fphys.2013.00035).
Common beans (Phaseolus vulgaris L.) originated in the New World and are the grain legume of greatest production for direct human consumption. Common bean production is subject to frequent droughts in highland Mexico, in the Pacific coast of Central America, in northeast Brazil, and in eastern and southern Africa from Ethiopia to South Africa. This article reviews efforts to improve common bean for drought tolerance, referring to genetic diversity for drought response, the physiology of drought tolerance mechanisms, and breeding strategies. Different races of common bean respond differently to drought, with race Durango of highland Mexico being a major source of genes. Sister species of P. vulgaris likewise have unique traits, especially P. acutifolius which is well adapted to dryland conditions. Diverse sources of tolerance may have different mechanisms of plant response, implying the need for different methods of phenotyping to recognize the relevant traits. Practical considerations of field management are discussed including: trial planning; water management; and field preparation.
Functional roles of the plasticity of root system development in biomass production and water uptake under rainfed lowland condition
Kano-Nakata M, Gowda VRP, Henry A, Serraj R, Inukai Y, Fujita D, Kobayashi N, Suralta RR, and Yamauchi A (2013). Functional roles of the plasticity of root system development in biomass production and water uptake under rainfed lowland conditions. Field Crops Research 144:288–296. (DOI: 10.1016/j.fcr.2013.01.024). (G3008.06). Not open access: view abstract
Kano-Nakata M, Gowda VRP, Henry A, Serraj R, Inukai Y, Fujita D, Kobayashi N, Suralta RR, and Yamauchi A (2013). Functional roles of the plasticity of root system development in biomass production and water uptake under rainfed lowland conditions. Field Crops Research 144:288–296. (DOI: 10.1016/j.fcr.2013.01.024). (G3008.06). Not open access: view abstract
Resistance of αAI-1 transgenic chickpea (Cicer arietinum) and cowpea (Vigna unguiculata) dry grains to bruchid beetles (Coleoptera: Chrysomelidae)
Lüthi C, Álvarez-Alfageme F, Ehlers JD, Higgins TJV and Romeis J (2013). Resistance of αAI-1 transgenic chickpea (Cicer arietinum) and cowpea (Vigna unguiculata) dry grains to bruchid beetles (Coleoptera: Chrysomelidae). Bulletin of Entomological Research, available on CJO2013, pp1–9. (DOI: 10.1017/S0007485312000818). (G6010.02/G7010.07.01). Not open access: view online
Lüthi C, Álvarez-Alfageme F, Ehlers JD, Higgins TJV and Romeis J (2013). Resistance of αAI-1 transgenic chickpea (Cicer arietinum) and cowpea (Vigna unguiculata) dry grains to bruchid beetles (Coleoptera: Chrysomelidae). Bulletin of Entomological Research, available on CJO2013, pp1–9. (DOI: 10.1017/S0007485312000818). (G6010.02/G7010.07.01). Not open access: view online
Restriction of transpiration rate under high vapour pressure deficit and non-limiting water conditions is important for terminal drought tolerance in cowpea
Belko N, Zaman-Allah M, Diop NN, Cisse N, Zombre G, Ehlers JD and Vadez V (2013). Restriction of transpiration rate under high vapour pressure deficit and non-limiting water conditions is important for terminal drought tolerance in cowpea. Plant Biology 15(2):304–316. (DOI:10.1111/j.1438-8677.2012.00642.x) Also published online in 2012. Not open access: view abstract
Belko N, Zaman-Allah M, Diop NN, Cisse N, Zombre G, Ehlers JD and Vadez V (2013). Restriction of transpiration rate under high vapour pressure deficit and non-limiting water conditions is important for terminal drought tolerance in cowpea. Plant Biology 15(2):304–316. (DOI:10.1111/j.1438-8677.2012.00642.x) Also published online in 2012. Not open access: view abstract
Plant response to environmental conditions: assessing potential production, water demand, and negative effects of water deficit
Tardieu F (2013). Plant response to environmental conditions: assessing potential production, water demand, and negative effects of water deficit. Frontiers in Plant Physiology 4:17. (DOI: 10.3389/fphys.2013.00017).
This paper reviews methods for analyzing plant performance and its genetic variability under a range of environmental conditions. Biomass accumulation is linked every day to available light in the photosynthetically active radiation (PAR) domain, multiplied by the proportion of light intercepted by plants and by the radiation use efficiency. Total biomass is cumulated over the duration of the considered phase (e.g., plant cycle or vegetative phase). These durations are essentially constant for a given genotype provided that time is corrected for temperature (thermal time). Several ways of expressing thermal time are reviewed. Two alternative equations are presented, based either on the effect of transpiration, or on yield components. Their comparative interests and drawbacks are discussed. The genetic variability of each term of considered equations affects yield under water deficit, via mechanisms at different scales of plant organization and time. The effect of any physiological mechanism on yield of stressed plants acts via one of these terms, although the link is not always straightforward. Finally, I propose practical ways to compare the productivity of genotypes in field environments, and a “minimum dataset”of environmental data and traits that should be recorded for that.
Tardieu F (2013). Plant response to environmental conditions: assessing potential production, water demand, and negative effects of water deficit. Frontiers in Plant Physiology 4:17. (DOI: 10.3389/fphys.2013.00017).
This paper reviews methods for analyzing plant performance and its genetic variability under a range of environmental conditions. Biomass accumulation is linked every day to available light in the photosynthetically active radiation (PAR) domain, multiplied by the proportion of light intercepted by plants and by the radiation use efficiency. Total biomass is cumulated over the duration of the considered phase (e.g., plant cycle or vegetative phase). These durations are essentially constant for a given genotype provided that time is corrected for temperature (thermal time). Several ways of expressing thermal time are reviewed. Two alternative equations are presented, based either on the effect of transpiration, or on yield components. Their comparative interests and drawbacks are discussed. The genetic variability of each term of considered equations affects yield under water deficit, via mechanisms at different scales of plant organization and time. The effect of any physiological mechanism on yield of stressed plants acts via one of these terms, although the link is not always straightforward. Finally, I propose practical ways to compare the productivity of genotypes in field environments, and a “minimum dataset”of environmental data and traits that should be recorded for that.
Genetic Diversity of Cassava (Manihot esculenta Crantz) landraces and cultivars from Southern, Eastern and Central Africa
Kawuki RS, Herselman L, Labuschagne MT, Nzuki I, Ralimanana I, Bidiaka M, Kanyange MC, Gashaka G, Masumba E, Mkamilo G, Gethi J, Wanjala B, Zacarias A, Madabula F and Ferguson ME (2013). Genetic Diversity of Cassava (Manihot esculenta Crantz) landraces and cultivars from Southern, Eastern and Central Africa. Plant Genetic Resources FirstView Article CJO2013, pp 1–12. Published online: 12 February 2013. (DOI: 10.1017/S1479262113000014). Not open access: view abstract
Kawuki RS, Herselman L, Labuschagne MT, Nzuki I, Ralimanana I, Bidiaka M, Kanyange MC, Gashaka G, Masumba E, Mkamilo G, Gethi J, Wanjala B, Zacarias A, Madabula F and Ferguson ME (2013). Genetic Diversity of Cassava (Manihot esculenta Crantz) landraces and cultivars from Southern, Eastern and Central Africa. Plant Genetic Resources FirstView Article CJO2013, pp 1–12. Published online: 12 February 2013. (DOI: 10.1017/S1479262113000014). Not open access: view abstract
Phenotyping bananas for drought resistance
Ravi I, Uma S, Vaganan MM, Mustaffa MM (2013). Phenotyping bananas for drought resistance. Frontiers in Plant Physiology 4:9. (DOI: 10.3389/fphys.2013.00009).
Drought has emerged as one of the major constraints in banana production. Its effects are pronounced substantially in the tropics and sub-tropics of the world due to climate change. Bananas are quite sensitive to drought; however, genotypes with “B” genome are more tolerant to abiotic stresses than those solely based on “A” genome. In particular, bananas with “ABB” genomes are more tolerant to drought and other abiotic stresses than other genotypes. A good phenotyping plan is a prerequisite for any improvement program for targeted traits. In the present article, known drought tolerant traits of other crop plants are validated in bananas with different genomic backgrounds and presented. Since, banana is recalcitrant to breeding, strategies for making hybrids between different genomic backgrounds are also discussed. Stomatal conductance, cell membrane stability (CMS), leaf emergence rate, rate of leaf senescence, RWC, and bunch yield under soil moisture deficit stress are some of the traits associated with drought tolerance. Among these stress bunch yield under drought should be given top priority for phenotyping. In the light of recently released Musa genome draft sequence, the molecular breeders may have interest in developing molecular markers for drought resistance.
Ravi I, Uma S, Vaganan MM, Mustaffa MM (2013). Phenotyping bananas for drought resistance. Frontiers in Plant Physiology 4:9. (DOI: 10.3389/fphys.2013.00009).
Drought has emerged as one of the major constraints in banana production. Its effects are pronounced substantially in the tropics and sub-tropics of the world due to climate change. Bananas are quite sensitive to drought; however, genotypes with “B” genome are more tolerant to abiotic stresses than those solely based on “A” genome. In particular, bananas with “ABB” genomes are more tolerant to drought and other abiotic stresses than other genotypes. A good phenotyping plan is a prerequisite for any improvement program for targeted traits. In the present article, known drought tolerant traits of other crop plants are validated in bananas with different genomic backgrounds and presented. Since, banana is recalcitrant to breeding, strategies for making hybrids between different genomic backgrounds are also discussed. Stomatal conductance, cell membrane stability (CMS), leaf emergence rate, rate of leaf senescence, RWC, and bunch yield under soil moisture deficit stress are some of the traits associated with drought tolerance. Among these stress bunch yield under drought should be given top priority for phenotyping. In the light of recently released Musa genome draft sequence, the molecular breeders may have interest in developing molecular markers for drought resistance.
High-throughput 2D root system phenotyping platform facilitates genetic analysis of root growth and development
Clark RT, Famoso AN, Zhao K, Shaff JE, Craft JE, Bustamante CD, McCouch SR, Aneshansley DJ, Kochian LV. 2013. High-throughput 2D root system phenotyping platform facilitates genetic analysis of root growth and development. Plant Cell Environment 36(2):454–466. (DOI: 10.1111/j.1365-3040.2012.02587.x). Also published online in 2012. (G7010.03.01). Not open access: view abstract
Clark RT, Famoso AN, Zhao K, Shaff JE, Craft JE, Bustamante CD, McCouch SR, Aneshansley DJ, Kochian LV. 2013. High-throughput 2D root system phenotyping platform facilitates genetic analysis of root growth and development. Plant Cell Environment 36(2):454–466. (DOI: 10.1111/j.1365-3040.2012.02587.x). Also published online in 2012. (G7010.03.01). Not open access: view abstract
Assessment of groundnut under combined heat and drought stress
Hamidou F, Halilou O & Vadez V (2013). Assessment of groundnut under combined heat and drought stress. Journal of Agronomy and Crop Science 199(1):1–11. (DOI:10.1111/j.1439-037X.2012.00518.x). Also published online in 2012.
In semi-arid regions, particularly in the Sahel, water and high-temperature stress are serious constraints for groundnut production. Understanding of combined effects of heat and drought on physiological traits, yield and its attributes is of special significance for improving groundnut productivity. Two hundred and sixty-eight groundnut genotypes were evaluated in four trials under both intermittent drought and fully irrigated conditions, two of the trial being exposed to moderate temperature, while the two other trials were exposed to high temperature. The objectives were to analyse the component of the genetic variance and their interactions with water treatment, year and environment (temperature) for agronomic characteristics, to select genotypes with high pod yield under hot- and moderate-temperature conditions, or both, and to identify traits conferring heat and/or drought tolerance.
Hamidou F, Halilou O & Vadez V (2013). Assessment of groundnut under combined heat and drought stress. Journal of Agronomy and Crop Science 199(1):1–11. (DOI:10.1111/j.1439-037X.2012.00518.x). Also published online in 2012.
In semi-arid regions, particularly in the Sahel, water and high-temperature stress are serious constraints for groundnut production. Understanding of combined effects of heat and drought on physiological traits, yield and its attributes is of special significance for improving groundnut productivity. Two hundred and sixty-eight groundnut genotypes were evaluated in four trials under both intermittent drought and fully irrigated conditions, two of the trial being exposed to moderate temperature, while the two other trials were exposed to high temperature. The objectives were to analyse the component of the genetic variance and their interactions with water treatment, year and environment (temperature) for agronomic characteristics, to select genotypes with high pod yield under hot- and moderate-temperature conditions, or both, and to identify traits conferring heat and/or drought tolerance.
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