Polyploidy in Primula farinosa L.

Davies, Elizabeth W.

doi:10.1038/171659a0

Cited by 9 publications

(5 citation statements)

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“…The scapeless morph reported from England and from the islands of Öland and Gotland in Sweden (Lagerberg ), has not been observed in Denmark. Primula farinosa is considered diploid (2n = 18), though tetraploid plants (2n = 36) have been reported from Gotland (Davies ). Flowers are distylous with both pin and thrum flower‐types, pollinated by bees and butterflies (Ehrlén et al , Toräng ).…”

Section: Methodsmentioning

confidence: 99%

Primula farinosa in Denmark; genetic diversity and population management

Sørensen

Larsen

Orabi

et al. 2014

Nordic Journal of Botany

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During the past centuries Danish populations of Primula farinosa have seriously declined in number. We investigated the genetic structure and genetic diversity of plants of seven populations from two diff erent regions, Zealand and Bornholm in Denmark, using three AFLP markers. Two populations from nearby Scania, Sweden were included as reference. We found 54 unambiguously polymorphic loci. Th e genetic structure analysis suggested division of the 268 plants into three distinct groups, to a large extent matching the geographical distribution of the populations. Analysis of molecular variance (AMOVA) indicated signifi cant genetic diff erentiation of 67% within populations and 33% among the populations. Our results suggest that genetic diff erentiation among regions and unique local genetic diversity should carefully be considered in future conservation attempts if we are to maintain as much genetic variation as possible. We present a historical overview of the decline in Danish populations and discuss conservation management and restoration strategies.

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Section: Methodsmentioning

confidence: 99%

Primula farinosa in Denmark; genetic diversity and population management

Sørensen

Larsen

Orabi

et al. 2014

Nordic Journal of Botany

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“…farinosa (haploid number n = 18) has been reported by Davies (1953) from Gotland. Sites with taxa of Scandinavian Primula subg.…”

Section: Cytologymentioning

confidence: 94%

“…Bruun, who made the first chromosome counts of most tax.a within the genus, cited only two specimens from one local population of P. farinosa, for P. scandinavica two specimens from two different populations in Sweden and 8 specimens fixed together from one population in Norway and for P. stricta four specimens from two local populations (Bruun 1932: 55-56). The report of Davies (1953) on tetraploid P. farinosa from Gotland has no indications of the number of counts and individuals examined. No voucher specimen is known to me.…”

Section: Cytologymentioning

confidence: 99%

Evolution in higher plants: patterns and processes

Økland¹

1990

Sommerfeltia

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Some problems in the Myosotis laxa group are surveyed. The relationship between M. baltica Sam. and M. caespitosa C.F. Schulz in the Baltic land-uplift area is particularly addressed. Studied aspects include morphological variation, chromosome numbers, reproductive system, and ecology. In the studied area, the "M. baltica type" and the "M. caespitosa type" seem to be connected through complex series of intermediate forms. It is not unlikely that the "M. baltica type" has evolved from the "M. caespitosa type", one or several times, as an adaptation to coastal conditions.

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“…The basic chromosome number of the polyploid series of Primula , Section Farinosae exigua , is 9, with P. farinosa as its diploid (archetypal) representative characterized by 2 n = 18; see Bruun (1932) and Davies (1953). Japanese diploid plants have been regarded alternatively as worthy of subspecific status or as a distinct species.…”

Section: Structure and Physiologymentioning

confidence: 99%

“…Japanese diploid plants have been regarded alternatively as worthy of subspecific status or as a distinct species. Autotetraploid (2 n = 36) material has been recorded from the Baltic island of Gotland (Davies 1953) and from the Sayan region of Russia (Krogulevich 1978); the former, at least, seems doubtful (Hambler 2003b). Octoploid (2 n = 72) material of unrevealed provenance was reported by Bruun (1932), and is possibly the source of the record tabulated by Krogulevich.…”

Section: Structure and Physiologymentioning

confidence: 99%

Primula farinosa L.

Hambler

Dixon

2003

Journal of Ecology

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Perennial rosette hemicryptophyte. Rosettes with a short, up to 5 mm, erect conical/discoid axis, bearing a succession of closely spaced leaves, and giving rise to intercalary primordia which may alternatively differentiate into adventitous roots, inflorescences, vegetative buds, or sessile, tangentially flattened, winter bulbils. Leaves, sometimes fleshy, incurled, 1-5( − 10) cm long, 0.3-2 cm broad, oblanceolate, oblong-ovate to elliptic, obtuse or subacute, sometimes narrowing into a petiole-like basal region which may represent almost half of the length, finely toothed or crenulate to entire, green, somewhat glistening above when mature with, in the type subspecies, white-or sulphur-coloured farina on abaxial surface; farina on both surfaces of unexpanded leaves, and of apetiolate leaves in overwintered newly expanding rosettes; farina sometimes initially present on adaxial surface of expanded leaves but subject to removal by weathering. Cotyledons and leaves with scattered unicellular capitate glandular hairs on upper surfaces; similar hairs also on hypocotyl. Scape(s) (mostly absent in one British population) originating among leaf bases of rosettes, thick striate 0-3 cm tall, or thinner 2-20( − 30) cm tall reflecting an intrapopulation genetic polymorphism (a varietal name, acaulis Ahlq., has been applied). Scape sparsely glandular, farinose entirely when young, distally only later, bearing one umbel (or unusually two umbels 'candelabra-like' on the same axis) with few or many (< 30) flowers or flower buds not all of which may mature, flexible during flowering, rigid during fruiting. Pedicels c . 5 mm, slender, slightly spreading, becoming twice as long as bracts, farinose. Bracts 2-8 cm long, narrow lanceolate, to subulate, acute or acuminate, broadened at the markedly gibbous base, more or less farinose. Calyx cylindric or urceolate becoming cuplike in fruit, 3-6 × 2 mm, farinose both within and without; usually five-angled and toothed, with the teeth obtuse, or more rarely acute, often tinged with †Correspondence: Dr David Hambler, 14 Yew Tree Avenue,

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Polyploidy in Primula farinosa L.

Cited by 9 publications

References 0 publications

Primula farinosa in Denmark; genetic diversity and population management

Primula farinosa in Denmark; genetic diversity and population management

Evolution in higher plants: patterns and processes

Primula farinosa L.

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