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Title: First genome size assessments in Carduncellus and its related genera Femeniasia and Phonus (Asteraceae, Cardueae), with data on 21 taxa
Author: Garnatje i Roca, Teresa
Hidalgo Grani, Oriane
Vallès Xirau, Joan, 1959-
Garcia Giménez, Sònia
Romo i Díez, Àngel M. (Àngel Maria)
Vilatersana Lluch, Roser
Keywords: Citogenètica
Biologia de la conservació
Evolució vegetal
Conservation biology
Plant evolution
Issue Date: 2021
Publisher: Consejo Superior de Investigaciones Científicas (CSIC)
Abstract: Genome size of 18 species of the genus Carduncellus, two species of the related genus Phonusand the monotypic genus Femeniasia (F. balearica) has been assessed by flow cytometry for the first time. Ploidy levels were assigned using genome size data together with previously reported chromosome counts. A phylogenetic framework was built to visualize how cytogenetic traits distributed across taxa. The results confirmed three ploidy levels (2x, 4x and 6x), with a predominance of diploids. The 2C values ranged from 3.24 pg in Carduncellus calvusto 11.16 pg in C. erio-cephalus, whereas monoploid genome size (1Cx) ranged from 1.29 pg in C. duvauxii (4x)to 2.30 pg in Phonus rhiphaeus (2x). The mean 1Cx for tetraploids was lower than for diploids. For each ploidy level, genome size values of Carduncellus, Femeniasia and Phonus were found to be higher than those of Carthamus. This result is consistent with a trend frequently observed in plants, of higher genome sizes in long life cycle taxa compared to short-lived relatives
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It is part of: Collectanea Botanica, 2021
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ISSN: 0010-0730
Appears in Collections:Articles publicats en revistes (Biologia, Sanitat i Medi Ambient)

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