Análisis de la meiosis y viabilidad del polen en morfotipos intraespecíficos de Cuscuta paradiana (Cuscutaceae)

Autor:	Valeria de los Ángeles Páez, Aldo Rubén Andrada, María I. Toranzo, Graciela E. Ruíz de Bigliardo
Rok vydání:	2018
Předmět:	Gynoecium biology fungi Cytomixis food and beverages medicine.disease_cause biology.organism_classification Meiosis Genus Pollen Botany medicine Cuscuta Subgenus Ploidy
Zdroj:	Lilloa. 55:3-15
ISSN:	2346-9641 0075-9481
Popis:	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
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4f33c3c05ba1984b658f17e79f39ad87 https://doi.org/10.30550/j.lil/2018.55.1/1 Zobrazit plný text záznamu