<?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>S2007-40182023000100099</article-id>
<article-id pub-id-type="doi">10.5154/r.rchscfa.2022.05.038</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Ability of morphological traits from needles and cones to identify Pinus pseudostrobus Lindl. varieties]]></article-title>
<article-title xml:lang="es"><![CDATA[Potencial de caracteres morfológicos de acículas y conos en la identificación de variedades de Pinus pseudostrobus Lindl.]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Escobar-Alonso]]></surname>
<given-names><![CDATA[Sebastián]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vargas-Hernández]]></surname>
<given-names><![CDATA[J. Jesús]]></given-names>
</name>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Upton]]></surname>
<given-names><![CDATA[Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2023</year>
</pub-date>
<volume>29</volume>
<numero>1</numero>
<fpage>99</fpage>
<lpage>116</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-40182023000100099&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-40182023000100099&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-40182023000100099&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction: Pinus pseudostrobus, a species of ecological and economic importance in Mexico, has a wide distribution and intraspecific variation, which generates controversy regarding the identification of its operational taxonomic units (OTU).  Objectives: To evaluate morphological traits of cones and needles of P. pseudostrobus to distinguish varieties and identify traits with greater discriminatory capacity.  Materials and methods: Twelve traits in cones and 20 in needles were measured on samples from 153 trees identified in four putative OTU. Univariate and multivariate ANOVA, variance component estimation and canonical discrimination analysis (CDA) with cross-validation were carried out.  Results and discussion: Thirteen needle and 12 cone traits showed significant differences between OTU. The variance between OTU increased 6.8 %, on average, when considering the varieties oaxacana and apulcensis as distinct OTU. Multivariate analysis confirmed significant differences in foliage and cones between OTU. The variation explained by the CDA increased from 0.35 to 0.74 and 0.76 when using foliage, cones, and overall variables, respectively. Eight cone traits allowed discrimination among OTU with average error of 9.2 %.  Conclusions: Despite the wide intraspecific variation, it was possible to differentiate the main OTU of P. pseudostrobus with cone morphological markers, with important implications for a better management of genetic resources of this species. The present study shows evidence of morphoanatomical differences between oaxacana and apulcensis varieties.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: Pinus pseudostrobus, especie de importancia ecológica y económica en México, tiene amplia distribución y variación intraespecífica, lo que genera controversias en la identificación de sus unidades taxonómicas operativas (UTO).  Objetivos: Evaluar características morfológicas de conos y acículas de P. pseudostrobus para distinguir variedades e identificar caracteres con mayor capacidad de discriminación.  Materiales y métodos: Se midieron 12 caracteres en conos y 20 en acículas en muestras de 153 árboles identificados en cuatro UTO putativas. Se realizaron análisis de varianza univariada y multivariada, estimación de componentes de varianza y discriminación canónica (ADC) con validación cruzada.  Resultados y discusión: Trece características de acículas y 12 de conos mostraron diferencias significativas entre UTO. La varianza entre UTO aumentó 6.8 %, en promedio, al considerar las variedades oaxacana y apulcensis como UTO distintas. El análisis multivariado confirmó diferencias significativas en el follaje y conos entre UTO. La variación explicada por el ADC aumentó de 0.35 a 0.74 y 0.76 al utilizar variables de follaje, conos y en conjunto, respectivamente. Ocho caracteres de conos permitieron la discriminación entre UTO con error promedio de 9.2 %.  Conclusiones: A pesar de la amplia variación intraespecífica fue posible distinguir las principales UTO de P. pseudostrobus con marcadores morfológicos de conos, con implicaciones importantes hacia un mejor manejo de los recursos genéticos de la especie. El trabajo muestra evidencias de diferencias morfoanatómicas entre las variedades oaxacana y apulcensis.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[canonical discrimination]]></kwd>
<kwd lng="en"><![CDATA[operational taxonomic unit]]></kwd>
<kwd lng="en"><![CDATA[morphological variation]]></kwd>
<kwd lng="en"><![CDATA[oaxacan variety]]></kwd>
<kwd lng="en"><![CDATA[apulcensis variety]]></kwd>
<kwd lng="es"><![CDATA[discriminación canónica]]></kwd>
<kwd lng="es"><![CDATA[unidad taxonómica operativa]]></kwd>
<kwd lng="es"><![CDATA[variación morfológica]]></kwd>
<kwd lng="es"><![CDATA[variedad oaxacana]]></kwd>
<kwd lng="es"><![CDATA[variedad apulcensis]]></kwd>
</kwd-group>
</article-meta>
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