Analysis of meiosis and pollen viability in intraspecific morphotypes of Cuscuta parodiana (Cuscutaceae)
In family Cuscutaceae the Cuscuta genus comprises holo-parasitic plants that have cosmopolitan distribution. The genus includes three subgenera: Cuscuta , Monogyna and Grammica ; the last one is widely distributed in the American continent. In this work, flower morphology, meiotic studies and pollen viability of 4 natural populations of Cuscuta parodiana subgenus Grammica are presented. The flower morphology allow us to differentiate 4 morpho- types through corolla and gynoecium traits. Three entities analyzed were tetraploids (n = 30), and one was of them diploid (n = 15). Trivalent and tetravalent chromosomal configurations, chromatin bridges, chromosomes outside of metaphasic plate, cytomixis and extranuclear spherical bodies were observed during meiosis
| Main Authors: | , , , |
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| Format: | Digital revista |
| Language: | spa |
| Published: |
Fundación Miguel Lillo
2018
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| Online Access: | http://www.lillo.org.ar/journals/index.php/lilloa/article/view/v55n1a01 |
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