New combinations and names in <i>Melaleuca</i> (Myrtaceae)

Craven, Lyn A.; Edwards, R. E.; Cowley, Kirsten J.

doi:10.12705/633.38

Cited by 8 publications

(7 citation statements)

References 12 publications

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“…21 species), Verreauxia (3 species), and monotypic Selliera and Pentaptilon (not included in the current study, but strongly supported as sister to Verreauxia in Jabaily et al, 2012). This would be congruent with other large molecular phylogenetic studies on Australian groups that resulted in proposed subsumation of genera (e.g., Orthia et al, 2005;Mast and Thiele, 2007;Shepherd and Wilson, 2007;Craven et al, 2014). The second option is the retention of at least some of the segregate genera and the elevation of some clades to generic status.…”

supporting

confidence: 85%

Utilizing next-generation sequencing to resolve the backbone of the Core Goodeniaceae and inform future taxonomic and floral form studies

Gardner

Sessa

Michener

et al. 2016

Molecular Phylogenetics and Evolution

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Though considerable progress has been made in inferring phylogenetic relationships of many plant lineages, deep unresolved nodes remain a common problem that can impact downstream efforts, including taxonomic decision-making and character reconstruction. The Core Goodeniaceae is a group affected by this issue: data from the plastid regions trnL-trnF and matK have been insufficient to generate adequate support at key nodes along the backbone of the phylogeny. We performed genome skimming for 24 taxa representing major clades within Core Goodeniaceae. The plastome coding regions (CDS) and nuclear ribosomal repeats (NRR) were assembled and complemented with additional accessions sequenced for nuclear G3PDH and plastid trnL-trnF and matk. The CDS, NRR, and G3PDH alignments were analyzed independently and topology tests were used to detect the alignments' ability to reject alternative topologies. The CDS, NRR, and G3PDH alignments independently supported a Brunonia (Scaevola s.l. (Coopernookia (Goodenia s.l.))) backbone topology, but within Goodenia s.l., the strongly-supported plastome topology (Goodenia A (Goodenia B (Velleia+Goodenia C))) contrasts with the poorly supported nuclear topology ((Goodenia A+Goodenia B) (Velleia+Goodenia C)). A fully resolved and maximally supported topology for Core Goodeniaceae was recovered from the plastome CDS, and there is excellent support for most of the major clades and relationships among them in all alignments. The composition of these seven major clades renders many of the current taxonomic divisions non-monophyletic, prompting us to suggest that Goodenia may be split into several segregate genera.

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supporting

confidence: 85%

Utilizing next-generation sequencing to resolve the backbone of the Core Goodeniaceae and inform future taxonomic and floral form studies

Gardner

Sessa

Michener

et al. 2016

Molecular Phylogenetics and Evolution

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“…Generic limits in the tribe Melaleuceae have been the subject of much recent study (Brown et al 2000, Wilson et al 2005, Craven 2006, Edwards et al 2010, Udovicic and Spencer 2012, Craven et al 2014. We follow Craven (2006), Edwards et al (2010) and Brophy et al (2013) in adopting a broad concept of Melaleuca, i.e.…”

Section: Taxonomymentioning

confidence: 94%

“…As a result of debate surrounding generic limits in the tribe Melaleuceae, especially regarding the recognition of Callistemon as a segregate genus (Craven 2006;Udovicic and Spencer 2012, Edwards et al 2010, Craven et al 2014, species lists included in the recently published Alien and Invasive Species Regulations in South Africa (DEA 2014) may generate errors due to synonymy issues. For example, the regulations list Callistemon rigidus, which is now treated as a synonym of C. linearis if one accepts the separation of the two genera (see Council of Heads of Australasian Herbaria 2016); if a broad concept of Melaleuca is adopted, then the taxon should be listed as Melaleuca linearis.…”

Section: Introduced B2mentioning

confidence: 99%

Quantifying errors and omissions in alien species lists: The introduction status of Melaleuca species in South Africa as a case study

Jacobs¹,

Richardson²,

Lepschi³

et al. 2017

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Introduced species lists provide essential background information for biological invasions research and management. The compilation of these lists is, however, prone to a variety of errors. We highlight the frequency and consequences of such errors using introduced Melaleuca (sensu lato, including Callistemon) species in South Africa as a case study. We examined 111 herbarium specimens from South Africa and noted the categories and sub-categories of errors that occurred in identification. We also used information from herbarium specimens and distribution data collected in the field to determine whether a species was introduced, naturalized and invasive. We found that 72% of the specimens were not named correctly. These were due to human error (70%) (misidentification, and improved identifications) and species identification problems (30%) (synonyms arising from inclusion of Callistemon, and unresolved taxonomy). At least 36 Melaleuca species have been introduced to South Africa, and field observations indicate that ten of these have naturalized, including five that are invasive. While most of the errors likely have negligible impact on management, we highlight one case where incorrect identification lead to an inappropriate management approach and some instances of errors in published lists. Invasive species lists need to be carefully reviewed to minimise errors, and herbarium specimens supported by DNA identification are required where identification using morphological features is particularly challenging. NeoBiotaLlewellyn E. O. Jacobs et al. / NeoBiota 32: 89-105 (2017) 90

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“…Represented were: Arillastrum (one species), Corymbia (four species), Eucalyptus (31 species), Heteropyxis (one species) and Melaleuca (five species). We also included a Calothamnus species because our previous work showed all genera in the tribe Melaleuceae to be included in Melaleuca [31, 43]. The gDNA was quantified using either the LabChip DS Spectrophotometer (Trinean, Gentbrugge, Belgium) or by separating them by agarose gel electrophoresis.…”

Section: Methodsmentioning

confidence: 99%

Identifying genetic markers for a range of phylogenetic utility–From species to family level

et al. 2019

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Resolving the phylogenetic relationships of closely related species using a small set of loci is challenging as sufficient information may not be captured from a limited sample of the genome. Relying on few loci can also be problematic when conflict between gene-trees arises from incomplete lineage sorting and/or ongoing hybridization, problems especially likely in recently diverged lineages. Here, we developed a method using limited genomic resources that allows identification of many low copy candidate loci from across the nuclear and chloroplast genomes, design probes for target capture and sequence the captured loci. To validate our method we present data from Eucalyptus and Melaleuca , two large and phylogenetically problematic genera within the Myrtaceae family. With one annotated genome, one transcriptome and two whole-genome shotgun sequences of one Eucalyptus and four Melaleuca species, respectively, we identified 212 loci representing 263 kbp for targeted sequence capture and sequencing. Of these, 209 were successfully tested from 47 samples across five related genera of Myrtaceae. The average percentage of reads mapped back to the reference was 57.6% with coverage of more than 20 reads per position across 83.5% of the data. The methods developed here should be applicable across a large range of taxa across all kingdoms. The core methods are very flexible, providing a platform for various genomic resource availabilities and are useful from shallow to deep phylogenies.

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New combinations and names in Melaleuca (Myrtaceae)

Cited by 8 publications

References 12 publications

Utilizing next-generation sequencing to resolve the backbone of the Core Goodeniaceae and inform future taxonomic and floral form studies

Utilizing next-generation sequencing to resolve the backbone of the Core Goodeniaceae and inform future taxonomic and floral form studies

Quantifying errors and omissions in alien species lists: The introduction status of Melaleuca species in South Africa as a case study

Identifying genetic markers for a range of phylogenetic utility–From species to family level

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