<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2007-4018</journal-id>
<journal-title><![CDATA[Revista Chapingo serie ciencias forestales y del ambiente]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Chapingo ser. cienc. for. ambient]]></abbrev-journal-title>
<issn>2007-4018</issn>
<publisher>
<publisher-name><![CDATA[Universidad Autónoma Chapingo, Coordinación de Revistas Institucionales]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-40182022000300427</article-id>
<article-id pub-id-type="doi">10.5154/r.rchscfa.2022.01.003</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Phytochemical variation among sacred fir (Abies religiosa [Kunth] Schltdl. &amp; Cham.) provenances in an altitudinal gradient]]></article-title>
<article-title xml:lang="es"><![CDATA[Variación fitoquímica entre procedencias de oyamel (Abies religiosa [Kunth] Schltdl. &amp; Cham.) en un gradiente altitudinal]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cruzado-Vargas]]></surname>
<given-names><![CDATA[Ana L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Rodríguez]]></surname>
<given-names><![CDATA[Yolanda M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortiz-Bibian]]></surname>
<given-names><![CDATA[Marisol A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Espinosa-García]]></surname>
<given-names><![CDATA[Francisco J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Antonio-López]]></surname>
<given-names><![CDATA[Pedro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sáenz-Romero]]></surname>
<given-names><![CDATA[Cuauhtémoc]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lindig-Cisneros]]></surname>
<given-names><![CDATA[Roberto A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Michoacana de San Nicolás de Hidalgo Instituto de Investigaciones Agropecuarias y Forestales ]]></institution>
<addr-line><![CDATA[Morelia Michoacán]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Investigaciones en Ecosistemas y Sustentabilidad ]]></institution>
<addr-line><![CDATA[Morelia Michoacán]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Tecnológico Nacional de México  Departamento de Ingeniería Bioquímica]]></institution>
<addr-line><![CDATA[Morelia Michoacán]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[San Pedro Cholula Puebla]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad Michoacana de San Nicolás de Hidalgo Instituto de Investigaciones sobre los Recursos Naturales ]]></institution>
<addr-line><![CDATA[Morelia Michoacán]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<volume>28</volume>
<numero>3</numero>
<fpage>427</fpage>
<lpage>445</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-40182022000300427&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-40182022000300427&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-40182022000300427&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction: A species' populations differ across its distribution due to selection pressure from the climate gradient.  Objective:  To describe the phytochemical variation among 14 tree provenances in an altitudinal gradient of Abies religiosa (Kunth) Schltdl. &amp; Cham. to determine if there are associations of chemical profiles among populations, expressed under a single environment.  Materials and methods:  Seeds were collected from 165 trees from an altitudinal transect from 2 850 to 3 540 m in Cerro San Andrés, Municipio Libre de Hidalgo, Michoacán, Mexico. The plant was grown in a common garden trial; at 28 months, mature needles were collected per tree and analyzed by gas-mass chromatography. Data were analyzed with diversity indices, ANOVA and multivariate analysis (principal components, correspondences and cluster).  Results and discussion: Thirty-two compounds were identified, most of them terpenes. The populations showed differences in presence/absence of terpenes and in their concentration; above 3 350 m, diversity was lower, but with higher concentration. Three altitude groups were found based on the chemical profile of the populations: low = 2 850 to 3 300 m and 3 400 m; moderate = 3 350, 3 450 and 3 500 m; and high = 3 540 m.  Conclusions: The diversity and concentration of terpenes in A. religiosa varied depending on the altitude of populations. There are three chemical profiles that should be considered in the implementation of germplasm collection programs for reforestation and restoration.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: Las poblaciones de una especie son diferentes a lo largo de su distribución por la presión de selección del gradiente climático.  Objetivo:  Describir la variación fitoquímica entre 14 procedencias en un gradiente altitudinal de Abies religiosa (Kunth) Schltdl. &amp; Cham., para determinar si existen asociaciones de perfiles químicos entre poblaciones, expresados bajo un solo ambiente.  Materiales y métodos:  Se recolectaron semillas de 165 árboles de un transecto altitudinal de 2 850 a 3 540 m en el cerro de San Andrés, Municipio Libre de Hidalgo, Michoacán, México. La planta se produjo en ensayo de jardín común; a los 28 meses se recolectaron acículas maduras por individuo y se analizaron por cromatografía de gases-masas. Los datos se analizaron con índices de diversidad, análisis de varianza y multivariados (componentes principales, correspondencias y conglomerados).  Resultados y discusión: Se identificaron 32 compuestos, la mayoría terpenos. Las poblaciones presentaron diferencias en presencia/ausencia de terpenos y en su concentración; arriba de 3 350 m, la diversidad fue más baja, pero con mayor concentración. Se encontraron tres grupos de altitud con base en el perfil químico de las poblaciones: baja = 2 850 a 3 300 m y 3 400 m; intermedia = 3 350, 3 450 y 3 500 m; y elevada = 3 540 m.  Conclusiones: La diversidad y concentración de los terpenos en A. religiosa variaron en función de la altitud de las poblaciones. Existen tres perfiles químicos que deben considerarse en el establecimiento de programas de recolecta de germoplasma para reforestación y restauración.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[terpenes]]></kwd>
<kwd lng="en"><![CDATA[secondary metabolites]]></kwd>
<kwd lng="en"><![CDATA[chemical profile]]></kwd>
<kwd lng="en"><![CDATA[diversity indices]]></kwd>
<kwd lng="en"><![CDATA[multivariate analysis]]></kwd>
<kwd lng="es"><![CDATA[terpenos]]></kwd>
<kwd lng="es"><![CDATA[metabolitos secundarios]]></kwd>
<kwd lng="es"><![CDATA[perfil químico]]></kwd>
<kwd lng="es"><![CDATA[índices de diversidad]]></kwd>
<kwd lng="es"><![CDATA[análisis multivariados]]></kwd>
</kwd-group>
</article-meta>
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