Conflicting patterns of genetic and morphological variation in European Gentianella section Gentianella

Jang, Chang‐Gee; Müllner, Alexandra N.; Greimler, Josef

doi:10.1111/j.1095-8339.2005.00406.x

Cited by 18 publications

(27 citation statements)

References 35 publications

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“…These differences can result from the small numbers of individuals compared (Adams, 1999) and the taxonomic relationships among these taxa ought to be verified with more extensive material, as Farjon (2005: 288) suggested. The conflicting patterns of genetic and biochemical variation among the taxa compared, however, can also be a reality, similar to those described between genetic and morphological characters within Gentianella (Jang, Müllner & Greimler, 2005).…”

Section: Discussionmentioning

confidence: 97%

Numerical taxonomy of Juniperus thurifera, J. excelsa and J. foetidissima (Cupressaceae) based on morphological characters

Marcysiak

Mazur

Romo

et al. 2007

Botanical Journal of the Linnean Society

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Juniperus excelsa and J. thurifera are considered to originate from the same ancestor. As a result of occurring in geographically isolated refuges -J. excelsa in SE Europe and SW Asia and J. thurifera in SW Europe and NW Africa -their divergence could have taken place at the end of the Tertiary, with the climate cooling. Juniperus foetidissima occurs in SE Europe and SW Asia in territories shared with J. excelsa and is similar to and sometimes misidentified with it. The occurrence of the latter two species over the same area suggests they should be more similar to each other than to the geographically distant J. thurifera. Four populations of J. excelsa ssp. excelsa, four of J. thurifera and two of Juniperus foetidissima were examined on the basis of features of 10 cones and 10 shoots of 18-36 specimens each. Results of discrimination analysis, Mahalanobis distances and cluster analysis showed great similarity to J. excelsa and J. thurifera, while J. foetidissima was more distant. The results support the hypothesis of a common ancestor of J. excelsa and J. thurifera, but suggest another origin of J. foetidissima.

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Section: Discussionmentioning

confidence: 97%

Numerical taxonomy of Juniperus thurifera, J. excelsa and J. foetidissima (Cupressaceae) based on morphological characters

Marcysiak

Mazur

Romo

et al. 2007

Botanical Journal of the Linnean Society

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“…; Jang et al . ). Our study species G. bohemica belongs to the highly diverse last group (Skalický ; Wisskirchen & Haeupler ) and is described as a geographical and morphological intermediate taxon between G. germanica s.str.…”

Section: Methodsmentioning

confidence: 97%

“…and (ii) G. campestris agg.these two are both rather coherentand the more heterogeneous (iii) G. germanica agg. (Greimler et al 2004;Jang et al 2005). Our study species G. bohemica belongs to the highly diverse last group (Skalick y 1969;Wisskirchen & Haeupler 1998) and is described as a geographical and morphological intermediate taxon between G. germanica s.str.…”

Section: Study Speciesmentioning

confidence: 99%

Genetic and reproductive characterisation of seasonal flowering morphs ofGentianella bohemicarevealed strong reproductive isolation and possible single origin

et al. 2015

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Phenotypic polymorphism represents the most obvious type of intraspecific diversity raising scientific interest in its evolution and maintenance. We studied the regional endemic Gentianella bohemica, which exhibits an early- and a late-flowering morph. Genetic variation and structuring were investigated in relation to potential pollination and mating system differences, to verify hypotheses of evolutionary integrity, origin, and reproductive isolation of both flowering morphs. We identified the rarer early-flowering morph as an independent genetic entity, being more selfing, likely stronger pollinator-limited and reproductively isolated. All analysed populations showed strong among population differentiation and low overall genetic diversity due to habitat fragmentation and reduced population sizes. These results indicate likely inbreeding, but we also found evidence for possible outbreeding depression in the late-flowering morph. Both G. bohemica morphs are characteristic of traditionally used, nutrient-poor grasslands, but they represent independent conservation units and need temporally adapted management. We, therefore, also briefly discuss our results in the general context of conservation activities in relation to intraspecific polymorphisms and strongly argue for their formal and consequent consideration.

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“…Sectional treatment of Gentiana cachemirica by different authors. Sections in which Gentiana cachemirica was placed in bold; n.ac., not accepted Clarke (1885) Kusnezow (1894) Smith ( Greimler et al, 2004;Chen et al, 2005;Jang et al, 2005;Yuan et al, 2005), but the species considered for the present study have not been considered for any analysis. In the present paper we aim to elucidate various aspects of the morphology of Gentiana cachemirica and clarify the sectional position of this species.…”

mentioning

confidence: 95%

Can the Sectional Position of Gentiana Cachemirica Be Clarified by a Detailed Analysis of Its Morphology?

Davitashvili¹,

Karrer²

2007

Edinburgh J. Bot.

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Gentiana cachemirica is a rare plant from northern Pakistan and northwestern India. The sectional position of this species has been a matter of considerable debate. Various authors have placed Gentiana cachemirica in one of three different sections -Gentiana sect. Isomeria, Gentiana sect. Kudoa or Gentiana sect. Pneumonanthe. The present paper assesses the taxonomic affinities of this species using a detailed study of its morphology accompanied by morphological phylogenetic and cluster analyses. Characters of the seed testa, corolla morphology and growth architecture were studied for selected species from the above-mentioned sections and closely related Gentiana sect. Cruciata. Representatives of Gentiana sect. Ciminalis were used as outgroups. Our results suggest that G. cachemirica belongs to Gentiana sect. Pneumonanthe and that its affinities are closer to the Western Asiatic group of this section.

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Conflicting patterns of genetic and morphological variation in European Gentianella section Gentianella

Cited by 18 publications

References 35 publications

Numerical taxonomy of Juniperus thurifera, J. excelsa and J. foetidissima (Cupressaceae) based on morphological characters

Numerical taxonomy of Juniperus thurifera, J. excelsa and J. foetidissima (Cupressaceae) based on morphological characters

Genetic and reproductive characterisation of seasonal flowering morphs ofGentianella bohemicarevealed strong reproductive isolation and possible single origin

Can the Sectional Position of Gentiana Cachemirica Be Clarified by a Detailed Analysis of Its Morphology?

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