<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "The relationship between population structure and aluminum tolerance in cultivated sorghum"^^ . "Background: Acid soils comprise up to 50% of the world’s arable lands and in these areas aluminum (Al) toxicity impairs\r\nroot growth, strongly limiting crop yield. Food security is thereby compromised in many developing countries located in\r\ntropical and subtropical regions worldwide. In sorghum, SbMATE, an Al-activated citrate transporter, underlies the AltSB locus\r\non chromosome 3 and confers Al tolerance via Al-activated root citrate release.\r\nMethodology: Population structure was studied in 254 sorghum accessions representative of the diversity present in\r\ncultivated sorghums. Al tolerance was assessed as the degree of root growth inhibition in nutrient solution containing Al. A\r\ngenetic analysis based on markers flanking AltSB and SbMATE expression was undertaken to assess a possible role for AltSB in\r\nAl tolerant accessions. In addition, the mode of gene action was estimated concerning the Al tolerance trait. Comparisons\r\nbetween models that include population structure were applied to assess the importance of each subpopulation to Al\r\ntolerance.\r\nConclusion/Significance: Six subpopulations were revealed featuring specific racial and geographic origins. Al tolerance\r\nwas found to be rather rare and present primarily in guinea and to lesser extent in caudatum subpopulations. AltSB was\r\nfound to play a role in Al tolerance in most of the Al tolerant accessions. A striking variation was observed in the mode of\r\ngene action for the Al tolerance trait, which ranged from almost complete recessivity to near complete dominance, with a\r\nhigher frequency of partially recessive sources of Al tolerance. A possible interpretation of our results concerning the origin\r\nand evolution of Al tolerance in cultivated sorghum is discussed. This study demonstrates the importance of deeply\r\nexploring the crop diversity reservoir both for a comprehensive view of the dynamics underlying the distribution and\r\nfunction of Al tolerance genes and to design efficient molecular breeding strategies aimed at enhancing Al tolerance."^^ . "2011" . . "6" . "6" . . "Public Library of Science "^^ . . . "PLoS ONE"^^ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "Jean-Christophe"^^ . "Glaszmann"^^ . "Jean-Christophe Glaszmann"^^ . . "F F"^^ . "Caniato"^^ . "F F Caniato"^^ . . "P"^^ . "Ramu"^^ . "P Ramu"^^ . . "A A F"^^ . "Garcia"^^ . "A A F Garcia"^^ . . "C"^^ . "Billot"^^ . "C Billot"^^ . . "L V"^^ . "Kochian"^^ . "L V Kochian"^^ . . "S"^^ . "Kresovich"^^ . "S Kresovich"^^ . . "J V"^^ . "Magalhaes"^^ . "J V Magalhaes"^^ . . "B"^^ . "Hufnagel"^^ . "B Hufnagel"^^ . . "A C"^^ . "Oliveira"^^ . "A C Oliveira"^^ . . "A"^^ . "Borém"^^ . "A Borém"^^ . . "C T"^^ . "Guimarães"^^ . "C T Guimarães"^^ . . "J"^^ . "Liu"^^ . "J Liu"^^ . . "Jean-François"^^ . "Rami"^^ . "Jean-François Rami"^^ . . "M"^^ . "Hamblin"^^ . "M Hamblin"^^ . . "S"^^ . "Mitchell"^^ . "S Mitchell"^^ . . "C T"^^ . "Hash"^^ . "C T Hash"^^ . . "R E"^^ . "Schaffert"^^ . "R E Schaffert"^^ . . "Gisela de"^^ . "Avellar"^^ . "Gisela de Avellar"^^ . . . . . . "The relationship between population structure and aluminum tolerance in cultivated sorghum (PDF)"^^ . . . . . . . . "The relationship between population structure and aluminum tolerance in cultivated sorghum (Image (JPEG))"^^ . . . . . "HTML Summary of #93 \n\nThe relationship between population structure and aluminum tolerance in cultivated sorghum\n\n" . "text/html" . . . "Sorghum"@en . .