Species relationships and taxonomy inTulipa subg.Tulipa (Liliaceae)

Raamsdonk, L.W.D. van; Vries, T. de

doi:10.1007/bf00982313

Cited by 60 publications

(61 citation statements)

References 9 publications

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“…The main characteristics are as follows, but not a single one is without exceptions: leaf/ stem hairiness, a black blotch at the base of the tepals with or without a yellow edge, the presence and type of hairs on the inside of the bulb tunic, flower color, flowering time, and hairs on the base of the filaments. To circumvent this, van Raamsdonk (1992) and van Raamsdonk and De Vries (1995) used principal component and canonical variate analyses to investigate the variation of 35 morphological characters, and they substantially clarified systematic relationships within Tulipa. In this study, DNA 2C-value (nuclear DNA content) is introduced as an additional method for the study of Tulipa taxonomy.…”

Section: Introductionmentioning

confidence: 99%

The systematic value of nuclear genome size for “all” species of Tulipa L. (Liliaceae)

2009

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Nuclear genome size, as measured by flow cytometry with propidium iodide, was used to investigate the relationships within the genus Tulipa L. (Liliaceae). More than 400 accessions representing 123 taxa from mainly wild-collected plants were investigated. Most species of Tulipa have the same basic chromosome number, 2n = 2x = 24. However, the somatic DNA 2C value (2C) is shown to range from 32 to 69 pg for the diploids. The largest genome contains roughly 3.4 9 10 10 more base pairs than the smallest and has chromosomes that are more than twice as large. These large differences in the amount of nuclear DNA predict that the hybrids, if any arise, are usually sterile. Depending on the size of the total genome, 1 pg amounts to several thousand genes. Moreover, genome sizes are evaluated here in combination with available morphological, geographical, and molecular data. Therefore, the taxonomy proposed here is not a single-character taxonomy based on genome size alone. The genus Tulipa, as here determined, has 87 species, 29 more than accepted by van Raamsdonk et al. [Acta Hort (ISHS) 430:821-828, 1997], but including 25 species that were not available to them. Of these 87 species, 28 were not seen by Hall (The genus Tulipa, The Royal Horticultural Society, London, 1940) in a living state and placed by him in an addendum.Species of the subgenus Clusianae (Baker) Zonn. differ strongly in nuclear DNA content (DNA 2C value), 32 versus 40-68 pg for all other tulips, and are placed here in a separate subgenus. Also Orithyia, the only group with a style and with only 38-39 pg is placed in a separate subgenus. Therefore, all tulips are attributed to four subgenera, Clusianae (Baker) Zonn., Tulipa, Eriostemones Raamsd., and Orithyia (D. Don) Baker and divided further into 12 sections. Seven of the eight series of section Eichleres (A.D. Hall) Raamsd. are now placed in four sections: (1) section Lanatae (Raamsd.) Zonn., mainly confined to species from the Pamir-Alay and including series Lanatae Raamsd., (2) section Multiflorae (Raamsd.) Zonn. (including series Glabrae Raamsd.), (3) section Vinistriatae (Raamsd.) Zonn. (including series Undulatae Raamsd.), and (4) section Spiranthera Vved. ex Zonn. and Veldk. Triploids, tetraploids, and pentaploids were found in several species. DNA content confirmed the close relationships of the species within the different sections. The rather similar looking and therefore often confused T. armena Boiss.

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Section: Introductionmentioning

confidence: 99%

The systematic value of nuclear genome size for “all” species of Tulipa L. (Liliaceae)

2009

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“…van Raamsd., and Orithyia (D. Don) Baker, and twelve sections (Zonneveld 2009). Genome size and the presence of nearly complete crossing barriers between the sections (Van Raamsdonk 1992;Van Raamsdonk and De Vries 1995) confirmed the close relationships of the species within the different sections. Tulips occur naturally in southern Europe, North Africa, the Middle East, and Central Asia, including Western China.…”

Section: Introductionmentioning

confidence: 55%

Tulipa kolbintsevii Zonn., a new species from Eastern Kazakhstan

Zonneveld

Groot²

2012

Plant Syst Evol

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The white-flowered Tulipa kolbintsevii (Liliaceae), section Biflores, occurs in SE Kazakhstan, Dzjungarian Ala-Tau, Taskora valley. So far only T. aff. altaica and T. brachystemon (sect. Kolpakowskianae) both with yellow flowers, flushed greenish-violet or red on the outside, were known to be present there. It differs in that it is not only the easternmost species of the section Biflores, and has different placement of hairs on the tepals, but also has the lowest genome size of the species in this section with 2C = 48 pg. The other 14 species have 51.5-59.4 pg. Flow cytometry supported morphological differences. This method is useful for identification of dormant bulbs or sterile plants and is therefore important for monitoring of the trade in bulbous species.

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“…is here designated as the lectotype of Liriopogon. This typification was also endorsed by Hitchcock (1929), Dasgupta and Deb (1985), and van Raamsdonk & de Vries (1995).…”

Section: Tulipa Breynianamentioning

confidence: 70%

“…Baker (1874), Levier (1884), Vvedensky (1935Vvedensky ( , 1968, Hall (1940), van Raamsdonk & De Vries (1995), and Zonneveld (2009). Baker (1931: 243) and Hall (1940: 60) Note.…”

Section: Subgenera Of Tulipamentioning

confidence: 99%

The infrageneric nomenclature of Tulipa (Liliaceae)

Veldkamp

Zonneveld

2011

Plant Syst Evol

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Zonneveld (Pl Syst Evol 281:217-245, 2009) proposed an infrageneric classification of Tulipa (Liliaceae) based on the nuclear content determined by flow cytometry and available morphological data. The nomenclatural consequences of this are discussed here, involving the typification of generic and infrageneric names. Additional notes on some species are given. Four subgenera are distinguished, of which two are new; ten sections are proposed, four new; three new combinations are made, and seven lectotypes are designated. Tulipa praecox Ten. is a later homonym of T. praecox Cav. (Descripcíon de las plantas. 2: 448, 625, 1803); its correct name is Tulipa agenensis DC. Tulipa lemmersii Zonn., A. Peterse, J. de Groot is validated here by giving the type citation.

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Species relationships and taxonomy inTulipa subg.Tulipa (Liliaceae)

Cited by 60 publications

References 9 publications

The systematic value of nuclear genome size for “all” species of Tulipa L. (Liliaceae)

The systematic value of nuclear genome size for “all” species of Tulipa L. (Liliaceae)

Tulipa kolbintsevii Zonn., a new species from Eastern Kazakhstan

The infrageneric nomenclature of Tulipa (Liliaceae)

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