Morphological and molecular variability of wild diploid and polyploid populations of Chrysolaena flexuosa (Sims) H. Rob: relevance for ornamental breeding
Chrysolaena flexuosa is a South American species of ornamental interest, whose variability has not been explored. The objective of this work was to perform joint analyses of morphological and molecular traits in seven accessions from its geographic distribution in Argentina: diploid, tetraploid and...
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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Elsevier
2021
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| Acceso en línea: | http://hdl.handle.net/20.500.12123/8997 https://www.sciencedirect.com/science/article/abs/pii/S0304423819307617 https://doi.org/10.1016/j.scienta.2019.108875 |
| _version_ | 1855484307104071680 |
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| author | Echeverria, Maria Lis Camadro, Elsa Lucila |
| author_browse | Camadro, Elsa Lucila Echeverria, Maria Lis |
| author_facet | Echeverria, Maria Lis Camadro, Elsa Lucila |
| author_sort | Echeverria, Maria Lis |
| collection | INTA Digital |
| description | Chrysolaena flexuosa is a South American species of ornamental interest, whose variability has not been explored. The objective of this work was to perform joint analyses of morphological and molecular traits in seven accessions from its geographic distribution in Argentina: diploid, tetraploid and hexaploid, along an approximately 1400 km transect. To this end, 26 morphological traits were recorded in 10–24 plants/accession, and two combination of AFLP markers were used for molecular characterization. The data was subjected to multivariate and AMOVA analyses, and the genetic diversity among accessions was evaluated by using the Fst index. The multivariate analyses for morphological traits allowed the differentiation of groups that were in accordance with their geographical origin and, thus, their respective ploidies; with the diploids exhibiting smaller-sized organs but higher numbers of leaves and heads. In the AMOVA, differences between accessions according to geographic origin were not significant (p = 0.123), and the highest percentage of the molecular variance corresponded to intra-population variation (88.1%). The Fst index indicated moderate genetic differentiation among accessions (Fst = 0.11), as observed in other allogamous species as a consequence of inter-population gene flow. In turn, the detected variability for morphological traits of interest would allow the use of these accessions in ornamental breeding for cultivar development. |
| format | Artículo |
| id | INTA8997 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA89972021-03-30T10:59:57Z Morphological and molecular variability of wild diploid and polyploid populations of Chrysolaena flexuosa (Sims) H. Rob: relevance for ornamental breeding Echeverria, Maria Lis Camadro, Elsa Lucila Germoplasma Poliploidía Fenotipos Marcadores Genéticos Fitomejoramiento Germplasm Polyploidy Phenotypes Genetic Markers Plant Breeding Chrysolaena flexuosa is a South American species of ornamental interest, whose variability has not been explored. The objective of this work was to perform joint analyses of morphological and molecular traits in seven accessions from its geographic distribution in Argentina: diploid, tetraploid and hexaploid, along an approximately 1400 km transect. To this end, 26 morphological traits were recorded in 10–24 plants/accession, and two combination of AFLP markers were used for molecular characterization. The data was subjected to multivariate and AMOVA analyses, and the genetic diversity among accessions was evaluated by using the Fst index. The multivariate analyses for morphological traits allowed the differentiation of groups that were in accordance with their geographical origin and, thus, their respective ploidies; with the diploids exhibiting smaller-sized organs but higher numbers of leaves and heads. In the AMOVA, differences between accessions according to geographic origin were not significant (p = 0.123), and the highest percentage of the molecular variance corresponded to intra-population variation (88.1%). The Fst index indicated moderate genetic differentiation among accessions (Fst = 0.11), as observed in other allogamous species as a consequence of inter-population gene flow. In turn, the detected variability for morphological traits of interest would allow the use of these accessions in ornamental breeding for cultivar development. EEA Balcarce Fil: Echeverría, María Lis. Universidad Nacional de Mar del Plata, Facultad de Ciencias Agrarias; Argentina. Fil: Camadro, Elsa Lucila. Universidad Nacional de Mar del Plata, Facultad de Ciencias Agrarias; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. 2021-03-30T10:51:27Z 2021-03-30T10:51:27Z 2020-01 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/8997 https://www.sciencedirect.com/science/article/abs/pii/S0304423819307617 0304-4238 https://doi.org/10.1016/j.scienta.2019.108875 eng info:eu-repo/semantics/restrictedAccess application/pdf Elsevier Scientia Horticulturae 260 : 108875 (January 2020) |
| spellingShingle | Germoplasma Poliploidía Fenotipos Marcadores Genéticos Fitomejoramiento Germplasm Polyploidy Phenotypes Genetic Markers Plant Breeding Echeverria, Maria Lis Camadro, Elsa Lucila Morphological and molecular variability of wild diploid and polyploid populations of Chrysolaena flexuosa (Sims) H. Rob: relevance for ornamental breeding |
| title | Morphological and molecular variability of wild diploid and polyploid populations of Chrysolaena flexuosa (Sims) H. Rob: relevance for ornamental breeding |
| title_full | Morphological and molecular variability of wild diploid and polyploid populations of Chrysolaena flexuosa (Sims) H. Rob: relevance for ornamental breeding |
| title_fullStr | Morphological and molecular variability of wild diploid and polyploid populations of Chrysolaena flexuosa (Sims) H. Rob: relevance for ornamental breeding |
| title_full_unstemmed | Morphological and molecular variability of wild diploid and polyploid populations of Chrysolaena flexuosa (Sims) H. Rob: relevance for ornamental breeding |
| title_short | Morphological and molecular variability of wild diploid and polyploid populations of Chrysolaena flexuosa (Sims) H. Rob: relevance for ornamental breeding |
| title_sort | morphological and molecular variability of wild diploid and polyploid populations of chrysolaena flexuosa sims h rob relevance for ornamental breeding |
| topic | Germoplasma Poliploidía Fenotipos Marcadores Genéticos Fitomejoramiento Germplasm Polyploidy Phenotypes Genetic Markers Plant Breeding |
| url | http://hdl.handle.net/20.500.12123/8997 https://www.sciencedirect.com/science/article/abs/pii/S0304423819307617 https://doi.org/10.1016/j.scienta.2019.108875 |
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