CLASSIFICATION OF GENOTYPES OF EUCALYPTUS GLOBULUS UNDER COLD CONDITIONS USING THEIR FREE AMINO ACIDS CONTENT ON LEAVES AND REGULARIZED DISCRIMINANT ANALYSIS (RDA)

Eucalyptus globulus is an important forestry species for wood and pulp industry; however, its low cold resistance is a serious disadvantage. In this work, chemometric techniques were applied onthe leaves'free amino acid content of different E. globulus genotypes in orderto select cold tolerant...

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Autores principales:	CASTILLO,ROSARIO DEL P, CONTRERAS,DAVID, BAEZA,JAME, OTTO,MATTHIAS, AGURTO,CRISTIAN, FREER,JUANITA
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2010
Materias:	regularized discriminant analysis (RDA) amino acids cold resistance Eucalyptus globulus
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072010000100005
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spelling	oai:scielo:S0717-970720100001000052010-04-29CLASSIFICATION OF GENOTYPES OF EUCALYPTUS GLOBULUS UNDER COLD CONDITIONS USING THEIR FREE AMINO ACIDS CONTENT ON LEAVES AND REGULARIZED DISCRIMINANT ANALYSIS (RDA)CASTILLO,ROSARIO DEL PCONTRERAS,DAVIDBAEZA,JAMEOTTO,MATTHIASAGURTO,CRISTIANFREER,JUANITA regularized discriminant analysis (RDA) amino acids cold resistance Eucalyptus globulus Eucalyptus globulus is an important forestry species for wood and pulp industry; however, its low cold resistance is a serious disadvantage. In this work, chemometric techniques were applied onthe leaves'free amino acid content of different E. globulus genotypes in orderto select cold tolerant genotypes. Pattern recognition methods based on regularized discriminant analysis (RDA) were used to classify the genotypes by cold resistance using samples' foliar damages as reference of cold resistance. Correlation between the amino acids content and cold resistance of genotypes was determined from a partial least squares (PLS) model. RDA models showed an excellent classification of genotypes (100% of correctly assigned genotypes in external validation), especially when RDA was reduced to quadratic discriminant analysis (QDA). Arg, Tyr and Ala, showed the highest correlations with the foliar damage in the PLS model and they could be responsible to improve cold resistance to the studied genotypes.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.55 n.1 20102010-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072010000100005en10.4067/S0717-97072010000100005
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	regularized discriminant analysis (RDA) amino acids cold resistance Eucalyptus globulus
spellingShingle	regularized discriminant analysis (RDA) amino acids cold resistance Eucalyptus globulus CASTILLO,ROSARIO DEL P CONTRERAS,DAVID BAEZA,JAME OTTO,MATTHIAS AGURTO,CRISTIAN FREER,JUANITA CLASSIFICATION OF GENOTYPES OF EUCALYPTUS GLOBULUS UNDER COLD CONDITIONS USING THEIR FREE AMINO ACIDS CONTENT ON LEAVES AND REGULARIZED DISCRIMINANT ANALYSIS (RDA)
description	Eucalyptus globulus is an important forestry species for wood and pulp industry; however, its low cold resistance is a serious disadvantage. In this work, chemometric techniques were applied onthe leaves'free amino acid content of different E. globulus genotypes in orderto select cold tolerant genotypes. Pattern recognition methods based on regularized discriminant analysis (RDA) were used to classify the genotypes by cold resistance using samples' foliar damages as reference of cold resistance. Correlation between the amino acids content and cold resistance of genotypes was determined from a partial least squares (PLS) model. RDA models showed an excellent classification of genotypes (100% of correctly assigned genotypes in external validation), especially when RDA was reduced to quadratic discriminant analysis (QDA). Arg, Tyr and Ala, showed the highest correlations with the foliar damage in the PLS model and they could be responsible to improve cold resistance to the studied genotypes.
author	CASTILLO,ROSARIO DEL P CONTRERAS,DAVID BAEZA,JAME OTTO,MATTHIAS AGURTO,CRISTIAN FREER,JUANITA
author_facet	CASTILLO,ROSARIO DEL P CONTRERAS,DAVID BAEZA,JAME OTTO,MATTHIAS AGURTO,CRISTIAN FREER,JUANITA
author_sort	CASTILLO,ROSARIO DEL P
title	CLASSIFICATION OF GENOTYPES OF EUCALYPTUS GLOBULUS UNDER COLD CONDITIONS USING THEIR FREE AMINO ACIDS CONTENT ON LEAVES AND REGULARIZED DISCRIMINANT ANALYSIS (RDA)
title_short	CLASSIFICATION OF GENOTYPES OF EUCALYPTUS GLOBULUS UNDER COLD CONDITIONS USING THEIR FREE AMINO ACIDS CONTENT ON LEAVES AND REGULARIZED DISCRIMINANT ANALYSIS (RDA)
title_full	CLASSIFICATION OF GENOTYPES OF EUCALYPTUS GLOBULUS UNDER COLD CONDITIONS USING THEIR FREE AMINO ACIDS CONTENT ON LEAVES AND REGULARIZED DISCRIMINANT ANALYSIS (RDA)
title_fullStr	CLASSIFICATION OF GENOTYPES OF EUCALYPTUS GLOBULUS UNDER COLD CONDITIONS USING THEIR FREE AMINO ACIDS CONTENT ON LEAVES AND REGULARIZED DISCRIMINANT ANALYSIS (RDA)
title_full_unstemmed	CLASSIFICATION OF GENOTYPES OF EUCALYPTUS GLOBULUS UNDER COLD CONDITIONS USING THEIR FREE AMINO ACIDS CONTENT ON LEAVES AND REGULARIZED DISCRIMINANT ANALYSIS (RDA)
title_sort	classification of genotypes of eucalyptus globulus under cold conditions using their free amino acids content on leaves and regularized discriminant analysis (rda)
publisher	Sociedad Chilena de Química
publishDate	2010
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072010000100005
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CLASSIFICATION OF GENOTYPES OF EUCALYPTUS GLOBULUS UNDER COLD CONDITIONS USING THEIR FREE AMINO ACIDS CONTENT ON LEAVES AND REGULARIZED DISCRIMINANT ANALYSIS (RDA)

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