Ricerche biosistematiche e corologiche sulle Thymelaeaceae in Italia: 1. Daphne alpina L.

Urbani, Malvina

doi:10.1080/00837792.1992.10670520

Cited by 3 publications

(2 citation statements)

References 3 publications

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“…While polyploidy has not played a prominent role in the evolutionary history of the genus Daphne ( Bolkhovskikh et al 1969 ; Murín 1990 ; Dawson and Beuzenberg 2013 ), several instances of autopolyploids and allopolyploids have been reported ( Malla et al 1977 ; Landolt and Hauser 1981 ; Urbani 1992 ). Our study reveals a unique example of a triploid cytotype reoccurring in several populations of D. cneorum in central Europe.…”

Section: Discussionmentioning

confidence: 99%

Incidence and evolutionary relevance of autotriploid cytotypes in a relict member of the genusDaphne(Thymelaeaceae)

Gajdošová,

Svitok,

Cetlová

et al. 2023

AoB PLANTS

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Odd ploidy-level cytotypes in sexually reproducing species are considered a dead end due to absent or reduced fertility. If sterility is only partial, however, their contribution to the population gene pool can be augmented by longevity and clonal growth. To test this, we investigated the cytotype origin and spatial pattern, and pollen viability in three relict shrub species of the genus Daphne (Thymelaeaceae Juss.) in central Europe. Daphne cneorum subsp. cneorum is a widespread European species that has a broad ecological amplitude, whereas D. cneorum subsp. arbusculoides and D. arbuscula are narrow endemics of the western Pannonian Plain and the Western Carpathians, respectively. Our study confirmed that all three taxa are diploid. However, of more than a thousand analysed individuals of D. cneorum subsp. cneorum, five in four different populations were triploid. Our data indicate that these triploids most likely originate from recurrent autopolyploidization events caused by the fusion of reduced and unreduced gametes. High pollen viability was observed in all three taxa and in both diploid and triploid cytotypes, ranging from 65 to 100 %. Our study highlights the significant role of odd ploidy-level cytotypes in interploidy gene flow, calling for more research into their reproduction, genetic variability, and overall fitness. Interestingly, while the endemic D. arbuscula differs from D. cneorum based on genetic and genome size data, D. cneorum subsp. arbusculoides was indistinguishable from D. cneorum subsp. cneorum. However, our study reveals that the subspecies differ in the number of flowers per inflorescence. This is the first comprehensive cytogeographic study of this intriguing genus at a regional scale, and in spite of its karyological stability, it contributes to our understanding of genomic evolution in plant species with a wide ecological amplitude.

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Section: Discussionmentioning

confidence: 99%

Incidence and evolutionary relevance of autotriploid cytotypes in a relict member of the genusDaphne(Thymelaeaceae)

Gajdošová,

Svitok,

Cetlová

et al. 2023

AoB PLANTS

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“…: 19091932 (FI) − Ref. : Zangheri 1966b;Matteini 1968;Siemoni et al 1989Siemoni et al -1998Urbani 1992;Ferrarini 1998;Sirotti 1998;De Dominicis et al 2002;− Exs. : 19341937 (FI);1937 (FI);1960 (FI);1960 (FI);1987 (FI);1987 (FI);1987 (SASSA);1994 (FI) − Note: We attributed to D. alpina also some few reports of D. oleoides, in accordance with Pignatti (1982), who attributed data of Casentino and Verna to D. alpina.…”

Section: Vicia Pseudocraccamentioning

confidence: 99%

An annotated checklist of the vascular flora of the Arezzo administrative province (Tuscany, Italy)

Viciani

Ferretti

Bernardini³

et al. 2020

Plant Biosystems - An International Journal Dealing with all As

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For each accepted taxon, the names used by the authors we quote are indicated in the original form, even if not formally correct (i.e. with the original abbreviation and with or without authors, as indicated in the bibliographical references), following the abbreviation "Cit. sub" (cited sub). Herbarium codes are indicated according to Thiers (2019). LYCOPHYTES LYCOPODIACEAEDiphasiastrum alpinum (L.

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Coumarins and other components of Daphne oleoides Schreb. subsp. oleoides from Majella National Park

Venditti

Serrilli

Cecco

et al. 2019

Biochemical Systematics and Ecology

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Ricerche biosistematiche e corologiche sulle Thymelaeaceae in Italia: 1. Daphne alpina L.

Abstract: Illustrazioni-Nel preparare le figure, sia a tratto che a retino, gli autori dovranno tenere conto che esse dovranno essere riportate alle dimensioni della pagina stampata (cm 12,7 X 18).

Cited by 3 publications

References 3 publications

Incidence and evolutionary relevance of autotriploid cytotypes in a relict member of the genusDaphne(Thymelaeaceae)

Incidence and evolutionary relevance of autotriploid cytotypes in a relict member of the genusDaphne(Thymelaeaceae)

An annotated checklist of the vascular flora of the Arezzo administrative province (Tuscany, Italy)

Coumarins and other components of Daphne oleoides Schreb. subsp. oleoides from Majella National Park

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