The Systematics of the Genus Tulipa L.

Raamsdonk, L.W.D. van; Eikelboom, W.; Vries, T. de; Straathof, Th.P.

doi:10.17660/actahortic.1997.430.131

Cited by 19 publications

(18 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore a yellow margin to a black blotch on the base of a tepal, even the blotch itself, can be present or absent within a species (Van Raamsdonk and De Vries 1995). Genome size as investigated here (see Table 1), complements the work based mainly on morphological characters of Hall (1940) and of morphological characters, crossability studies and geographical distribution of van Raamsdonk et al (1991Raamsdonk et al ( -1997. Although van Raamsdonk et al used about 35 characters to discriminate among the species, they remark that some species come out identical in their scheme yet can be distinguished by characters not used in their investigations.…”

Section: Genome Sizementioning

confidence: 61%

“…Although van Raamsdonk et al used about 35 characters to discriminate among the species, they remark that some species come out identical in their scheme yet can be distinguished by characters not used in their investigations. Our start was to see how few species we could distinguish; Van Raamsdonk et al (1997) with 55 species seemed a very good basis, but in the end, we could not be avoid restoring several more taxa to species status. Moreover, 25 additional species could be investigated that were not available to Van Raamsdonk and De Vries (1995).…”

Section: Genome Sizementioning

confidence: 99%

“…and Eriostemones. Van Raamsdonk et al (1997) raise these to subgenus status and divide the subgenus Tulipa into five sections: Clusianae Baker, Kopalkowskiana (A.D. Hall) Raamsd., Eichleres (A.D. Hall) Raamsd., Tulipanum Reboul, and Tulipa. Section Eichleres was further divided into eight series.…”

Section: Subdivision Of the Genus Tulipamentioning

confidence: 99%

“…Several species are in cultivation, but they cover less than 7% of the total tulip area in the Netherlands. The boundaries between taxa of various ranks are still a subject of dispute (van Raamsdonk et al 1997). All species counted (with exception of the polyploid forms and T. maximowiczii Regel) have the same chromosome number, 2n = 2x = 24 (De Mol 1928;Woods and Bamford 1937;Plavcova 1969).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

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

2009

View full text Add to dashboard Cite

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.

show abstract

Section: Genome Sizementioning

confidence: 61%

Section: Genome Sizementioning

confidence: 99%

Section: Subdivision Of the Genus Tulipamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

2009

View full text Add to dashboard Cite

show abstract

“…Presently, there is no uniform position with respect to systematics of Tulipa. Indeed, the number of species defined by different authors varies from 40-55 [1,2] to more than 100 [3]. The World Checklist for Tulipa [4] provides 418 taxons and 112 species.…”

Section: Introductionmentioning

confidence: 99%

Morphologic and AFLP analysis of relationships between tulip species Tulipa biebersteiniana (Liliaceae)

2013

View full text Add to dashboard Cite

Abstract-In populations of four species of tulips (Tulipa biebersteiniana, T. patens, T. scytica and T. riparia)from the Volgograd, Kurgansk, Orenburg, and Chelyabinsk regions and the Republic of Bashkortostan, genetic diversity was studied by means of morphological and AFLP analysis. A morphological analysis of seven quantitative and two qualitative criteria was carried out. Three selective EcoRI/MseI primer pairs allowed one to genotype 81 individuals from 13 tulip populations with 87 loci. The low level of variability by AFLP loci were revealed in all species, including T. biebersteiniana (P = 20.41%, UH e = 0.075), T. patens (26.97%, 0.082), T. scytica (27.53%, 0.086), and T. riparia (27.72%, 0.096). According to the AMOVA results, the variability proportion that characterizes the differences between the four Tulip species was lower (F CT = 0.235) than between populations within species (F ST = 0.439). Tulipa patens is well differentiated by means of Nei's distances, coordination, and analysis in the STRUCTURE program. An analysis in the STRUCTURE revealed four genetic groups of tulips that are not completely in accordance with the analyzed species. This acknowledges the presence of complicated genetic process in the tulip population.

show abstract