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Journal articles 2012

Documents

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The banana (Musa acuminata) genome and the evolution of monocotyledonous plants The banana (Musa acuminata) genome and the evolution of monocotyledonous plants

D’Hont A, Denoeud F, Aury J-M, Baurens F-C, Carreel F, Garsmeur O, Noel B, Bocs S, Droc G, Rouard M, Da Silva C, Jabbari K, Cardi C, Poulain J, Souquet M, Labadie K, Jourda C, Lengellé J, Rodier-Goud M, Alberti A, Bernard M, Correa M, Ayyampalayam S, MR, Leebens-Mack J, Burgess D, Freeling M, Mbéguié-A-Mbéguié D, Chabannes M, Wicker T, Panaud O, Barbosa J, Hribova E, Heslop-Harrison P, Habas R, Rivallan R, Francois P, Poiron C, Kilian A, Burthia D, Jenny C, Bakry F, Brown S, Guignon V, Kema G, Dita M, Waalwijk C, Joseph S, Dievart A, Jaillon O, Leclercq J, Argout X, Lyons E, Almeida A, Jeridi M, Dolezel J, Roux N, Risterucci A-M, Weissenbach J, Ruiz M, Glaszmann J-C, Quétier F, Yahiaoui N & Wincker P (2012). The banana (Musa acuminata) genome and the evolution of monocotyledonous plants. Nature 488(7410): 213–217. (DOI:10.1038/nature11241).

Bananas (Musa spp.), including dessert and cooking types, are giant perennial monocotyledonous herbs of the order Zingiberales, a sister group to the well-studied Poales, which include cereals. Bananas are vital for food security in many tropical and subtropical countries and the most popular fruit in industrialized countries1. The Musa domestication process started some 7,000 years ago in Southeast Asia. It involved hybridizations between diverse species and subspecies, fostered by human migrations2, and selection of diploid and triploid seedless, parthenocarpic hybrids thereafter widely dispersed by vegetative propagation. Half of the current production relies on somaclones derived from a single triploid genotype (Cavendish)1. Pests and diseases have gradually become adapted, representing an imminent danger for global banana production3,4.

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Functional marker mapping and association analysis of gene W16 in common wheat Functional marker mapping and association analysis of gene W16 in common wheat

Lei M, Li A, Chang X, Xu Z, Ma Y, Liu H, Jing R (2012). Functional marker mapping and association analysis of gene W16 in common wheat. Scientia Agricultura Sinica 45(9):1667–1675. (DOI: 10.3864/j.issn.0578-1752.2012.09.001). (G7010.02.01). Article in Chinese with abstract in English. Not open access: view abstract

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The cassava genome: current progress, future directions The cassava genome: current progress, future directions

Prochnik S, Reddy Marri P, Desany B, Rabinowicz PD, Kodira C, Mohiuddin M, Rodriguez F, Fauquet C, Tohme J, Harkins T, Rokhsar DS, Rounsley S (2012). The cassava genome: current progress, future directions. Tropical Plant Biology published online: 7pp. (DOI 10.1007/s12042-011-9088-z).

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Phenotyping cowpeas for adaptation to drought Phenotyping cowpeas for adaptation to drought

Hall A (2012). Phenotyping cowpeas for adaptation to drought. Frontiers in Plant Physiology 3:155. (DOI: 10.3389/fphys.2012.00155).

Methods for phenotyping cowpeas for adaptation to drought are reviewed. Key factors involve achieving optimal time of flowering and cycle length, and appropriate morphology for different types of cultivars as they relate to their utilization for dry grain, hay, and fresh pea production. Strong resistance to vegetative-stage drought is available and should be incorporated.The extreme ability of extra-early erect cowpea cultivars to escape terminal drought should be exploited in zones with very short rainfall seasons. In zones with the possibility of limited rainfall in the middle of the growing season,resistance to mid-season drought, and the delayed-leaf-senescence trait can be valuable. Breeding for water-us e efficiency, deeper rooting, and heat tolerance are discussed. Diseases and pests that influence adaptation to drought are considered. Resistance to the organism causing ashy stem blight disease should be incorporated because this disease can destroy cowpea seedlings under hot, dry soil conditions. The value of varietal intercrops with contrasting types of cowpea cultivars in enhancing adaptation to drought is described. Implications of cowpea/cereal rotations for cowpea breeding are discussed. Breeding strategies for enhancing cowpea adaptation to drought are described. 

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Analysis of constituents for phenotyping drought tolerance in crop improvement Analysis of constituents for phenotyping drought tolerance in crop improvement

Setter TL (2012). Analysis of constituents for phenotyping drought tolerance in crop improvement. Frontiers in Physiology 3:180. (DOI: 10.3389/fphys.2012.00180).

Investigators now have a wide range of analytical tools to use in measuring metabolites, proteins and transcripts in plant tissues. These tools have the potential to assist genetic studies that seek to phenotype genetic lines for heritable traits that contribute to drought tolerance. To be useful for crop breeding, hundreds or thousands of genetic lines must be assessed. This review considers the utility of assaying certain constituents with roles in drought tolerance for phenotyping genotypes. Abscisic acid (ABA), organic and inorganic osmolytes, compatible solutes, and late embryogenesis abundant proteins, are considered. Confounding effects that require appropriate tissue and timing specificity, and the need for high-throughput and analytical cost efficiency are discussed. With future advances in analytical methods and the value of analyzing constituents that provide information on the underlying mechanisms of drought tolerance, these approaches are expected to contribute to development crops with improved drought tolerance.

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