A phylogenetic analysis of the Chamelaucium alliance (Myrtaceae)

Lam, Natalia; Wilson, Peter G.; Heslewood, Margaret M.; Quinn, Christopher J.

doi:10.1071/sb01039

Cited by 35 publications

(35 citation statements)

References 15 publications

(18 reference statements)

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“…The sampled genera [as well as Leptospermum , which was included in a later phylogeny ( Lam et al , 2002 )] were chosen to represent the clades as evenly as possible with maximum coverage across the entire family. With few exceptions, we avoided sampling rare or threatened species.…”

Section: Survey Methods and Sitesmentioning

confidence: 99%

Leaf mining in the Myrtaceae

Sinclair

Hughes

2008

Ecological Entomology

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1. Leaf mining insects feed within plant tissue and thus have close physical associations with their host plants. Little is known about the evolution of relationships between leaf miners and their host species.2. The prevalence of leaf mining was examined in relation to the phylogeny of a dominant family of Australian plants, the Myrtaceae. Sixty-eight species from the 10 major phylogenetic groups within the family were sampled in south-eastern Australia.3. Fifty-seven per cent of the plant species examined were found to be mined. Several leaf traits were compared between mined and unmined plant species to investigate the potential role of both physical and nutritional characteristics in determining host-plant susceptibility to these herbivores.4. The physical leaf traits measured were leaf area, specific leaf area (SLA), lamina thickness, toughness, and amount of fibre (percentage hemicellulose). The nutritional traits were water content, and concentrations of carbon, nitrogen, total phenols and condensed tannins. Principal component analysis showed mined plant species differed from unmined in terms of several leaf traits.5. In a post hoc regression weighted for phylogeny, leaf miner presence was significantly positively correlated with plant species having thinner laminas and higher phenol concentrations, and was positively correlated with marginal significance to SLA and water content.

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Section: Survey Methods and Sitesmentioning

confidence: 99%

Leaf mining in the Myrtaceae

Sinclair

Hughes

2008

Ecological Entomology

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“…However, Baeckea is a paraphyletic group (Lam et al 2002;Wilson et al 2004) and many of the taxa named Baeckea in the present study belong to, as yet, undescribed genera. For example, published phylogenies indicate that B. ericaea and B. crassifolia are sister taxa (Lam et al 2002;Wilson et al 2004) and these species have a similar scabrate exine, syncolpate colpal morphology, and size. These two species also appear to be related to Rinzia and, more distantly, to B. polystemonea that also produce scabrate, syncolpate pollen.…”

Section: Pollen Types Within Genera Baeckeamentioning

confidence: 45%

“…Pollen of genera Baeckea, Euryomyrtus, Rinzia, Stenostegia and Triplarina were syncolpate with a pronounced granulate exine. Phylogenetic assessment of Chamelaucieae suggests that these genera do not form a monophyletic group (Lam et al 2002). Scholtzia and Ochrosperma were also syncolpate, but noticeably differed from the previously mentioned genera by having deeply concave sides and distinct margo.…”

Section: Distinct Pollen Morphology In Phylogenetic Groupsmentioning

confidence: 80%

“…Scholtzia and Ochrosperma were also syncolpate, but noticeably differed from the previously mentioned genera by having deeply concave sides and distinct margo. Despite the similarity of Scholtzia and Ochrosperma pollen, the phylogenetic analysis of the family suggests that these genera are not closely related (Lam et al 2002). Aluta, Sannantha, Thryptomene and Micromyrtus were syndemicolpate with a psilate exine, but also do not form a monophyletic group within Chamelaucieae.…”

Section: Distinct Pollen Morphology In Phylogenetic Groupsmentioning

confidence: 87%

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Pollen morphology of the Myrtaceae. Part 3: tribes Chamelaucieae, Leptospermeae and Lindsayomyrteae

Thornhill¹,

Wilson²,

Drudge³

et al. 2012

Aust. J. Bot.

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The pollen morphology of 36 genera and 147 species from the Myrtaceae tribes Chamelaucieae, Leptospermeae and Lindsayomyrteae was surveyed using scanning electron microscopy (SEM) and light microscopy (LM). Syncolpate pollen were observed in all genera of Leptospermeae and some genera of Chamelaucieae. Genera of tribe Chamelaucieae displayed five distinct colpal morphologies, which makes it the tribe with the most diverse pollen in Myrtaceae. Six genera of Chamelaucieae, including Actinodium, Chamelaucium, Darwinia, Homoranthus, Pileanthus and Verticordia, produce large acolpate pollen not observed in any other Myrtaceae. Two of these genera produce distinct pollen; Actinodium is the only genus to have prolate-spheroidal shaped pollen, and Pileanthus pollen is large and dicolporate. A number of anomalous aperture types occurred in species of Chamelaucieae, including monocolporate (Homoranthus thomasii), pentacolporate (Calytrix oldfieldii) and hexacolporate (Sannantha tozerensis). Pollen of Lindsayomyrteae appeared similar to those of Leptospermeae and Chamelaucieae, and on the basis of pollen features, could be related to these two tribes.

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“…Already, it is clear that many presently accepted genera in the Myrtaceae are poorly circumscribed (e.g. Wilson et al, 2001;Brown et al, 2001;Lam et al, 2002). It may well be that the next edition of this fine book will deal with such issues, particularly concerning relationships between Verticordia and Chamaelaucium.…”

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confidence: 99%

Book Review

2003

Curtis's Botanical Magazine

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A phylogenetic analysis of the Chamelaucium alliance (Myrtaceae)

Cited by 35 publications

References 15 publications

Leaf mining in the Myrtaceae

Leaf mining in the Myrtaceae

Pollen morphology of the Myrtaceae. Part 3: tribes Chamelaucieae, Leptospermeae and Lindsayomyrteae

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