The South American genera of Hemerocallidaceae (<i>Eccremis</i> and <i>Pasithea</i>): two introductions to the New World

Wurdack, Kenneth J.; Dorr, Laurence J.

doi:10.1002/tax.584006

Cited by 13 publications

(5 citation statements)

References 46 publications

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“…Stypandra jamesii is currently the only other recognized species in the genus Stypandra (Hopper, ). Dianella is related to Stypandra , together forming a polytomy in the phormioid clade within Hemerocallidaceae (Wurdack & Dorr, ).…”

Section: Methodsmentioning

confidence: 99%

Prolonged isolation and persistence of a common endemic on granite outcrops in both mesic and semi‐arid environments in south‐western Australia

Tapper

Byrne

Yates

et al. 2014

Journal of Biogeography

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Aim Granite outcrops may be able to act as refugia for species during adverse climate change, owing to their topographic complexity. We assessed this hypothesis by examining phylogeographical patterns in a common, geographically widespread granite endemic, Stypandra glauca (Hemerocallidaceae). Location Granite outcrops of the Southwest Australian Floristic Region, Western Australia. Methods Twenty‐four tetraploid individuals of the granite endemic Stypandra glauca were sampled from each of 12 granite outcrops: 7 from a mesic environment and 5 from the semi‐arid region. Phylogenetic reconstruction and divergence‐dating was achieved using Bayesian and parsimony analyses of chloroplast haplotypes from 90 individuals. Nuclear diversity and population differentiation were analysed across all individuals using 10 microsatellite loci. Results Stypandra glauca exhibited high (chloroplast) or moderate (nuclear) levels of divergence among, and low diversity within, outcrops. Haplotype diversity was high in both sampling regions, and each haplotype was unique to one outcrop. There was little correlation between geographical and genetic distance. Both nuclear and chloroplast diversity were higher in southern (mesic) outcrops than in northern (semi‐arid) outcrops, although the level of chloroplast divergence among outcrops was similar for both climatic regions. Main conclusions The levels of divergence and low diversity revealed in S. glauca support a scenario of prolonged isolation and persistence on granite outcrops in both mesic and semi‐arid climatic regions, with no evidence of contraction–expansion dynamics across the outcrop network. The higher levels of diversity in the southern populations may result from the maintenance of a larger effective population size in southern regions, which retained more mesic climates during drier glacial periods. Although the climatic conditions differ between outcrops in this study, our results indicate that outcrops in both regions have harboured S. glauca throughout climatic changes, accentuating the value of these habitats to biodiversity conservation under future changing climate.

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Section: Methodsmentioning

confidence: 99%

Prolonged isolation and persistence of a common endemic on granite outcrops in both mesic and semi‐arid environments in south‐western Australia

Tapper

Byrne

Yates

et al. 2014

Journal of Biogeography

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“…(Fig. 1; Chase et al, 1996, 2006; Wurdack and Dorr, 2009), whereas others place Behnia as sister to a clade including Herreria , Herreriopsis , and the former Anthericaceae s.s. (Bogler et al, 2006; Pires et al, 2006; Kim et al, 2010). Some of the species within the former Anthericaceae s.s form a well‐supported group with base chromosome numbers of x = 7,8 (Cave, 1948; Baldwin and Speese, 1951; Palomino and Romo, 1988; Bjorå et al, 2008).…”

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confidence: 99%

Phylogenomic analysis of transcriptome data elucidates co‐occurrence of a paleopolyploid event and the origin of bimodal karyotypes in Agavoideae (Asparagaceae)

McKain¹,

Wickett

Zhang

et al. 2012

American J of Botany

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We found that polyploidy and the origin of the Yucca-Agave bimodal karyotype co-occur on the same lineage consistent with the hypothesis that the bimodal karyotype is a consequence of allopolyploidy. We discuss this and alternative mechanisms for the formation of the Yucca-Agave bimodal karyotype. More generally, we illustrate how the use of next-generation sequencing technology is a cost-efficient means for assessing genome evolution in nonmodel species.

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“…(flax lily) is one of the largest genera in the family with c. 40 species. It is mainly Australian (Henderson, ), but has undergone radiation in former Zealandia (Heenan & de Lange, ) and South America (Wurdack & Dorr, ). Numerous taxa have been described from New Caledonia by Schlittler (), but these are in need of major revision.…”

Section: Resultsmentioning

confidence: 99%

An update of monocot macrofossil data from New Zealand and Australia

et al. 2015

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The macrofossil record of monocotyledons for New Zealand and Australia is updated on the basis of recent finds. In particular, reports for mummified leaf fossils with good cuticular preservation reveal significant fossil age or range extensions for a number of families in several different orders, including Ripogonaceae in the Eocene of Tasmania and New Zealand (and South America), and calamoid and other Arecaceae from the Eocene of southern New Zealand. There are also earliest macrofossil records for several families or subfamilies, including Alstroemeriaceae: Luzuriagoideae (Luzuriaga), Arecaceae, Asparagaceae: Lomandroideae (Cordyline), Asteliaceae (Astelia), Cymodoceaceae (aff. Ruppia), Cyperaceae, Restionaceae, Orchidaceae: Epidendroideae (Dendrobium and Earina), Asphodelaceae (previously Xanthorrhoeaceae): Hemerocallidoideae (Dianella/Phormium) and Xeronemataceae (Xeronema) from the Miocene of New Zealand. In addition, an Ensete-like seed associated with Pakawaua (Musaceae) and a leaf fragment of a second Musaceae-like species of Miocene age are presented. The biogeographical and palaeoecological implications of these records, especially for tropical or subtropical taxa occurring at mid to high southern latitudes, is discussed. In particular, the role and ecology of the relatively high-diversity monocot fossils in the sclerophyllous swamp forest at Newvale Mine in Southland and the lake-edge rainforest at Foulden Maar are explored.

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The South American genera of Hemerocallidaceae (Eccremis and Pasithea): two introductions to the New World

Cited by 13 publications

References 46 publications

Prolonged isolation and persistence of a common endemic on granite outcrops in both mesic and semi‐arid environments in south‐western Australia

Prolonged isolation and persistence of a common endemic on granite outcrops in both mesic and semi‐arid environments in south‐western Australia

Phylogenomic analysis of transcriptome data elucidates co‐occurrence of a paleopolyploid event and the origin of bimodal karyotypes in Agavoideae (Asparagaceae)

An update of monocot macrofossil data from New Zealand and Australia

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