Identification and Characterization of Aluminum Tolerance Loci in Arabidopsis (Landsberg erecta 3 Columbia) by Quantitative Trait Locus Mapping. A Physiologically Simple But Genetically Complex Trait
نویسندگان
چکیده
Department of Plant Biology, Cornell University, Ithaca, New York 14853 (O.A.H., J.E.S., L.V.K.); Department of Biology, University of North Carolina, Chapel Hill, North Carolina 27599 (T.J.V.); Departamento de Genética Vegetal, Institut de Recerca i Tecnologica Agroalimentaries, Ctra. Cabrils s/n, 08348, Cabrils, Spain (A.J.M.); Institute of Natural Science, Seoul Women’s University, Seoul 139-774, Korea (G.P.L.); Plant Sciences Institute, Iowa State University, Ames, Iowa 50011 (S.H.H.); and United States Plant, Soil and Nutrition Laboratory, United States Department of Agriculture-Agricultural Research Service, Ithaca, New York 14853 (L.V.K.)
منابع مشابه
Identification and characterization of aluminum tolerance loci in Arabidopsis (Landsberg erecta x Columbia) by quantitative trait locus mapping. A physiologically simple but genetically complex trait.
Aluminum (Al) toxicity, which is caused by the solubilization of Al3+ in acid soils resulting in inhibition of root growth and nutrient/water acquisition, is a serious limitation to crop production, because up to one-half of the world's potentially arable land is acidic. To date, however, no Al tolerance genes have yet been cloned. The physiological mechanisms of tolerance are somewhat better u...
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Selenium is essential for many organisms, but is toxic at higher levels. To investigate the genetic basis of selenate tolerance in Arabidopsis thaliana, quantitative trait loci (QTL) associated with selenate tolerance in accessions Landsberg erecta and Columbia were mapped using recombinant inbred lines (RILs). The selenate tolerance index (TI(D10) = root growth + 30 microm selenate/root growth...
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Postpollination nonrandom mating among compatible mates is a widespread phenomenon in plants and is genetically undefined. In this study, we used the recombinant inbred line (RIL) population between Landsberg erecta and Columbia (Col) accessions of Arabidopsis (Arabidopsis thaliana) to define the genetic architecture underlying both female- and male-mediated nonrandom mating traits. To map the ...
متن کاملAtALMT1, which encodes a malate transporter, is identified as one of several genes critical for aluminum tolerance in Arabidopsis.
Aluminum (Al) tolerance in Arabidopsis is a genetically complex trait, yet it is mediated by a single physiological mechanism based on Al-activated root malate efflux. We investigated a possible molecular determinant for Al tolerance involving a homolog of the wheat Al-activated malate transporter, ALMT1. This gene, named AtALMT1 (At1g08430), was the best candidate from the 14-member AtALMT fam...
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Salinity stress is one of the most widespread soil problems next to drought, in rice growing areas. ReducingSodium (Na+), while maintaining Potassium (K+) uptake in rice are traits that would aid in salinity tolerance.Therefore, the identification of quantitative trait loci (QTLs) associated with those for Na+ and K+uptake, will enable breeders to use marker-assisted selection...
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