Academic Journal
Morphometric Analysis of Sunflower ( Helianthus annuus L.) Achenes from Mexico and Eastern North America.
| Title: | Morphometric Analysis of Sunflower ( Helianthus annuus L.) Achenes from Mexico and Eastern North America. |
|---|---|
| Authors: | Tarighat, Somayeh, Lentz, David, Matter, Stephen, Bye, Robert |
| Source: | Economic Botany; Sep2011, Vol. 65 Issue 3, p260-270, 11p |
| Subject Terms: | Sunflowers, Morphometrics, Agriculture, Plant germplasm |
| Geographic Terms: | North America, Mexico |
| Abstract (English): | Morphometric Analysis of Sunflower ( Helianthus annuus L.) Achenes from Mexico and Eastern North America. Sunflower ( Helianthus annuus L .) has played a major role in the evolution of agricultural systems in the Americas. The discovery of ancient domesticated remains from archaeological deposits in pre-Columbian Mexico offers new dimensions to widely accepted viewpoints on the domestication pattern of H. annuus. Although American sunflower populations north of Mexico have been examined extensively, Mexican indigenous domesticated landraces have not been studied in any detail. In this study, we morphologically assessed wild and domesticated sunflower achenes from Mexico and compared them to similar datasets from eastern North America. Additionally, we evaluated the utility of four computer-assisted shape measurements in discriminating between wild and domesticated sunflower achenes (fruits) and compared variation in achene size among modern wild and cultivated populations from both Mexico and the U.S. We found that, of the shape parameters tested, none were informative in distinguishing wild achenes from domesticated varieties. Subsequent size analysis, using conventional parameters of length, width, and thickness, showed that modern wild populations from Mexico had smaller achenes compared to modern populations from eastern North America. Domesticated achenes unearthed from Mexican archaeological sites, however, were significantly larger than the early domesticated specimens recovered from eastern North America. Our methodological results indicate that variation in archaeological sunflower achenes is better described by conventional size parameters rather than computerized shape analysis. [ABSTRACT FROM AUTHOR] |
| Abstract (Spanish): | Análisis Morfométrico de Aquenios de Girasol ( Helianthus annuus L.) de México y Este de los Estados Unidos de América. El girasol ( Helianthus annuus L.) ha jugado un parte importante en la evolución de los sistemas agrícolas en las Américas. El descubrimiento de restos domésticos antiguos de yacimientos arqueológicos en el México precolombino ofrece nuevas dimensiones a los puntos de vista ampliamente aceptados en el patrón de domesticación de H. annuus. Aunque las poblaciones de girasol de México y Estados Unidos de América (EUA) han sido examinadas ampliamente, los restos arqueológicos domésticos de las razas indígenas de México no han sido estudiados en detalle. En este estudio, se evaluaron morfológicamente aquenios de girasol silvestre y domesticado de México y se compararon con conjuntos de datos similares del este de EUA. Además, se evaluó la utilidad de cuatro mediciones de forma asistidas por computador en la discriminación entre los aquenios (frutos) de girasol silvestre y domesticado además la variación en comparación de tamaño entre los aquenios modernos de poblaciones silvestres y cultivadas de México y los EUA. Se encontró que de los parámetros probados ninguno fue determinante para distinguir entre los aquenios silvestres y las variedades domesticadas. El análisis de tamaño, utilizando por los parámetros convencionales de la longitud, anchura y espesor, mostró que las poblaciones modernas de México presentan aquenios más pequeños, en comparación con las poblaciones modernas del Este de EUA. Sin embargo, los aquenios domesticados desenterrados de los sitios arqueológicos de México fueron significativamente más grandes que los ejemplares domesticados y recuperados del Este de EUA. Nuestros resultados indican que la variación metodológica para aquenios de girasol arqueológicos está mejor descrita por los parámetros de tamaño convencional en lugar del análisis de la forma informática. [ABSTRACT FROM AUTHOR] |
| Copyright of Economic Botany is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Complementary Index |
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| Items | – Name: Title Label: Title Group: Ti Data: Morphometric Analysis of Sunflower ( Helianthus annuus L.) Achenes from Mexico and Eastern North America. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Tarighat%2C+Somayeh%22">Tarighat, Somayeh</searchLink><br /><searchLink fieldCode="AR" term="%22Lentz%2C+David%22">Lentz, David</searchLink><br /><searchLink fieldCode="AR" term="%22Matter%2C+Stephen%22">Matter, Stephen</searchLink><br /><searchLink fieldCode="AR" term="%22Bye%2C+Robert%22">Bye, Robert</searchLink> – Name: TitleSource Label: Source Group: Src Data: Economic Botany; Sep2011, Vol. 65 Issue 3, p260-270, 11p – Name: Subject Label: Subject Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Sunflowers%22">Sunflowers</searchLink><br /><searchLink fieldCode="DE" term="%22Morphometrics%22">Morphometrics</searchLink><br /><searchLink fieldCode="DE" term="%22Agriculture%22">Agriculture</searchLink><br /><searchLink fieldCode="DE" term="%22Plant+germplasm%22">Plant germplasm</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22North+America%22">North America</searchLink><br /><searchLink fieldCode="DE" term="%22Mexico%22">Mexico</searchLink> – Name: AbstractNonEng Label: Abstract (English) Group: Ab Data: Morphometric Analysis of Sunflower ( Helianthus annuus L.) Achenes from Mexico and Eastern North America. Sunflower ( Helianthus annuus L .) has played a major role in the evolution of agricultural systems in the Americas. The discovery of ancient domesticated remains from archaeological deposits in pre-Columbian Mexico offers new dimensions to widely accepted viewpoints on the domestication pattern of H. annuus. Although American sunflower populations north of Mexico have been examined extensively, Mexican indigenous domesticated landraces have not been studied in any detail. In this study, we morphologically assessed wild and domesticated sunflower achenes from Mexico and compared them to similar datasets from eastern North America. Additionally, we evaluated the utility of four computer-assisted shape measurements in discriminating between wild and domesticated sunflower achenes (fruits) and compared variation in achene size among modern wild and cultivated populations from both Mexico and the U.S. We found that, of the shape parameters tested, none were informative in distinguishing wild achenes from domesticated varieties. Subsequent size analysis, using conventional parameters of length, width, and thickness, showed that modern wild populations from Mexico had smaller achenes compared to modern populations from eastern North America. Domesticated achenes unearthed from Mexican archaeological sites, however, were significantly larger than the early domesticated specimens recovered from eastern North America. Our methodological results indicate that variation in archaeological sunflower achenes is better described by conventional size parameters rather than computerized shape analysis. [ABSTRACT FROM AUTHOR] – Name: AbstractNonEng Label: Abstract (Spanish) Group: Ab Data: Análisis Morfométrico de Aquenios de Girasol ( Helianthus annuus L.) de México y Este de los Estados Unidos de América. El girasol ( Helianthus annuus L.) ha jugado un parte importante en la evolución de los sistemas agrícolas en las Américas. El descubrimiento de restos domésticos antiguos de yacimientos arqueológicos en el México precolombino ofrece nuevas dimensiones a los puntos de vista ampliamente aceptados en el patrón de domesticación de H. annuus. Aunque las poblaciones de girasol de México y Estados Unidos de América (EUA) han sido examinadas ampliamente, los restos arqueológicos domésticos de las razas indígenas de México no han sido estudiados en detalle. En este estudio, se evaluaron morfológicamente aquenios de girasol silvestre y domesticado de México y se compararon con conjuntos de datos similares del este de EUA. Además, se evaluó la utilidad de cuatro mediciones de forma asistidas por computador en la discriminación entre los aquenios (frutos) de girasol silvestre y domesticado además la variación en comparación de tamaño entre los aquenios modernos de poblaciones silvestres y cultivadas de México y los EUA. Se encontró que de los parámetros probados ninguno fue determinante para distinguir entre los aquenios silvestres y las variedades domesticadas. El análisis de tamaño, utilizando por los parámetros convencionales de la longitud, anchura y espesor, mostró que las poblaciones modernas de México presentan aquenios más pequeños, en comparación con las poblaciones modernas del Este de EUA. Sin embargo, los aquenios domesticados desenterrados de los sitios arqueológicos de México fueron significativamente más grandes que los ejemplares domesticados y recuperados del Este de EUA. Nuestros resultados indican que la variación metodológica para aquenios de girasol arqueológicos está mejor descrita por los parámetros de tamaño convencional en lugar del análisis de la forma informática. [ABSTRACT FROM AUTHOR] – Name: Abstract Label: Group: Ab Data: <i>Copyright of Economic Botany is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s12231-011-9165-0 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 11 StartPage: 260 Subjects: – SubjectFull: North America Type: general – SubjectFull: Mexico Type: general – SubjectFull: Sunflowers Type: general – SubjectFull: Morphometrics Type: general – SubjectFull: Agriculture Type: general – SubjectFull: Plant germplasm Type: general Titles: – TitleFull: Morphometric Analysis of Sunflower ( Helianthus annuus L.) Achenes from Mexico and Eastern North America. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Tarighat, Somayeh – PersonEntity: Name: NameFull: Lentz, David – PersonEntity: Name: NameFull: Matter, Stephen – PersonEntity: Name: NameFull: Bye, Robert IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 09 Text: Sep2011 Type: published Y: 2011 Identifiers: – Type: issn-print Value: 00130001 Numbering: – Type: volume Value: 65 – Type: issue Value: 3 Titles: – TitleFull: Economic Botany Type: main |
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