A phylogenetic analysis of the Cryptocarya group (Lauraceae), and relationships of Dahlgrenodendron, Sinopora, Triadodaphne, and Yasunia

Rohwer, Jens G.; Moraes, Pedro Luís Rodrigues de; Rudolph, Barbara; Werff, Henk van der

doi:10.11646/phytotaxa.158.2.1

Cited by 47 publications

(65 citation statements)

References 48 publications

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“…The primers used in this study are shown in Table A3. Sequencing was performed on the automated sequencer 3500 Genetic Analyzer (Thermo Fisher Scientific, Inc.; Waltham, Ma USA) as described in Rohwer et al (2014). The genetic regions were sequenced forward and reverse.…”

Section: Molecular Analysismentioning

confidence: 99%

Phylogenetic clustering found in lichen but not in plant communities in European heathlands

Geedicke¹,

Schultz²,

Rudolph³

et al. 2016

Community Ecology

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Species richness is a widespread measure to evaluate the effect of different management histories on plant communities and their biodiversity. However, analysing the phylogenetic structure of plant communities could provide new insights into the effects of different management methods on community assemblages and provide further guidance for conservation decisions. Heathlands require permanent management to ensure the existence of such a cultural landscape. While traditional management with grazing is time consuming, mechanical methods are often applied but their consequences on the phylogenetic community assemblages are still unclear. We sampled 60 vegetation plots in dry sandy heathlands (EU habitat type 2310) in northern Germany stratified by five different heathland management histories: fire, plaggen (turf cutting), mowing, deforestation and intensive grazing. Due to the distant relationship of vascular plants and lichens, we assembled two phylogenetic trees, one for vascular plants and one for lichens. We then calculated phylogenetic diversity (PD) and measures of phylogenetic community structure for vascular plant and lichen communities. Deforested areas supported significantly higher PD values for vascular plant communities. We found that PD was strongly correlated with species richness (SR) but the calculation of rarefied PD was uncorrelated to SR leading to a different ranking of management histories. We observed phylogenetic clustering in the lichen communities but not for vascular plants. Thus, management by mowing and intensive grazing promotes habitat filtering of lichens, while management histories that cause greater disturbance such as fire and plaggen do not seem to affect phylogenetic community structure. The set of management strategies fulfilled the goals of the managers in maintaining a healthy heathland community structure. However, management strategies that cause less disturbance can offer an additional range of habitat for other taxonomic groups such as lichen communities.

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Section: Molecular Analysismentioning

confidence: 99%

Phylogenetic clustering found in lichen but not in plant communities in European heathlands

Geedicke¹,

Schultz²,

Rudolph³

et al. 2016

Community Ecology

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“…No molecular studies have yet been undertaken on Hexapora, although Sinopora was included in a study of the Cryptocarya group (Rohwer et al, 2014). This genus was well supported as sister to a group of Central American Beilschmiedia species in the Bayesian analysis, the ITS analysis and in the combined analysis, but received less than 50% bootstrap support in the parsimony analysis Sinapora and Hexapora are likely to be closely related and they may even be congeneric.…”

Section: Discussion Of the Taxonomic Position Of Hexaporamentioning

confidence: 99%

“…This is particularly true for Hexapora as only a few specimens are known of which none has fully mature fruits and only one of which has very immature fruits. Recently, molecular data have helped to elucidate relationships in the Lauraceae (Rohwer et al, 2014). In the case of Hexapora, given that all known specimens are old, generating molecular data is currently problematic.…”

Section: Introductionmentioning

confidence: 99%

Notes on the monotypic genus Hexapora (Lauraceae), endemic to Peninsular Malaysia

Kok¹

2016

Gardens’ Bulletin Singapore

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ABSTRACT. An account of the genus Hexapora (Lauraceae) is presented. It comprises morphological descriptions of the genus and species, a provisional IUCN conservation assessment, ecological information and taxonomic notes. The morphology of the genus is compared to that of a number of possible close relatives, leading to the conclusion that it most likely belongs within the Beilschmiedia clade, and is likely closely related to Sinopora.

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“…This is mainly because many species share similar vegetative and reproductive macro-morphological characters, such as alternate leaves with entire margins and mostly pinnate venation, trimerous flowers with nine small stamens, two-locular anthers, and a single pistil enclosed in a long receptacular tube. A recent molecular phylogenetic study by Rohwer et al (2014) supported its monophyly, but this result was based on a sample of only 20 species representing the entire genus, as their main aim was to investigate relationships among the various genera in the Cryptocarya group, not those within the genus itself. The taxonomic relationships within the genus are still underexplored and no infrageneric classification yet exists.…”

Section: Introductionmentioning

confidence: 99%

Cuticular features of Cryptocarya (Lauraceae) from Peninsular Malaysia, Thailand and Indo-China and its taxonomic implications

Nishida

Kok²,

Yang

2016

Phytotaxa

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Cuticular features potentially offer valuable information on phytotaxonomy, especially for plants that are difficult to classify or identify. Cryptocarya is one such difficult and poorly known genus, and we investigated its cuticular features to evaluate their taxonomic implications. We examined cutinized leaf epidermis and the stomatal complex for 21 species from Peninsular Malaysia, Thailand and Indo-China, as well as one species endemic to Borneo and one to Sumatra, and compared features among members of this group, between this group and congeners in the other countries, and between this group and the other genera of Lauraceae. Many of the Cryptocarya species studied have straight to slightly curved anticlinal epidermal walls and butterfly-shaped stomatal ledges, although some variation was seen in the ornamentation of the periclinal epidermal walls and the appearance of the stomatal complex. Based on these results, we recognized four groups and two subgroups among the South-east Asian species. Comparison with congeneric taxa in the other countries indicates that butterfly-shaped stomatal ledges are often shared among the species across the regions. However, no cuticular features occur exclusively in any of the species groups of Cryptocarya studied here, nor in the genus as a whole. We consider that cuticular features are useful in the recognition of infrageneric groups within Lauraceae, bearing in mind that they might have evolved in parallel in different genera.

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A phylogenetic analysis of the Cryptocarya group (Lauraceae), and relationships of Dahlgrenodendron, Sinopora, Triadodaphne, and Yasunia

Cited by 47 publications

References 48 publications

Phylogenetic clustering found in lichen but not in plant communities in European heathlands

Phylogenetic clustering found in lichen but not in plant communities in European heathlands

Notes on the monotypic genus Hexapora (Lauraceae), endemic to Peninsular Malaysia

Cuticular features of Cryptocarya (Lauraceae) from Peninsular Malaysia, Thailand and Indo-China and its taxonomic implications

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