scholarly journals Erratum to: DNA sequences from three genomes reveal multiple long-distance dispersals and non-monophyly of sections in Australasian Plantago (Plantaginaceae)

2010 ◽  
Vol 23 (4) ◽  
pp. 306
Author(s):  
Mei Lin Tay ◽  
Heidi M. Meudt ◽  
Philip J. Garnock-Jones ◽  
Peter A. Ritchie
Keyword(s):  
New Zealand ◽  
Dna Sequences ◽  
Molecular Dating ◽  
Long Distance ◽  
Mountain Ranges ◽  
Biogeographic Pattern ◽  
Geographic Origins ◽  
Molecular Phylogenetic ◽  
Nuclear Its ◽  
Dna Substitution

We examined the geographic origins and taxonomic placements of New Zealand and Australian Plantago (Plantaginaceae) by using molecular phylogenetic data. Plantago comprises over 200 species distributed worldwide. Analyses of three markers from the nuclear (ITS), chloroplast (ndhF?rpl32) and mitochondrial (coxI) genomes showed that the New Zealand species form three distinct, well supported clades that are not each others' closest relatives, and were each derived relative to the sampled Australian species. Therefore, at least three long-distance directional dispersal events into New Zealand can be inferred for Plantago, likely from Australian ancestors. This result differs from the biogeographic pattern often reported for New Zealand plant genera of a single dispersal event followed by rapid radiation, and may be attributed to ready biotic dispersal of mucilaginous seeds and habitat similarities of the Australasian species. Molecular dating placed the arrival time and diversification of the New Zealand species between 2.291 and 0.5�million years ago, which coincides with the geological dates for the uplift of mountain ranges in New Zealand. The mitochondrial DNA substitution rate of the Australasian clade relative to the rest of the genus is discussed, as well as implications of the non-monophyly of sections Oliganthos, Mesembrynia and Plantago within subgenus Plantago.

scholarly journals DNA sequences from three genomes reveal multiple long-distance dispersals and non-monophyly of sections in Australasian Plantago (Plantaginaceae)

2010 ◽  
Vol 23 (1) ◽  
pp. 47 ◽  
Author(s):  
Mei Lin Tay ◽  
Heidi M. Meudt ◽  
Philip J. Garnock-Jones ◽  
Peter A. Ritchie
Keyword(s):  
New Zealand ◽  
Dna Sequences ◽  
Molecular Dating ◽  
Long Distance ◽  
Mountain Ranges ◽  
Biogeographic Pattern ◽  
Geographic Origins ◽  
Molecular Phylogenetic ◽  
Nuclear Its ◽  
Dna Substitution

We examined the geographic origins and taxonomic placements of New Zealand and Australian Plantago (Plantaginaceae) by using molecular phylogenetic data. Plantago comprises over 200 species distributed worldwide. Analyses of three markers from the nuclear (ITS), chloroplast (ndhF–rpl32) and mitochondrial (coxI) genomes showed that the New Zealand species form three distinct, well supported clades that are not each others’ closest relatives, and were each derived relative to the sampled Australian species. Therefore, at least three long-distance directional dispersal events into New Zealand can be inferred for Plantago, likely from Australian ancestors. This result differs from the biogeographic pattern often reported for New Zealand plant genera of a single dispersal event followed by rapid radiation, and may be attributed to ready biotic dispersal of mucilaginous seeds and habitat similarities of the Australasian species. Molecular dating placed the arrival time and diversification of the New Zealand species between 2.291 and 0.5 million years ago, which coincides with the geological dates for the uplift of mountain ranges in New Zealand. The mitochondrial DNA substitution rate of the Australasian clade relative to the rest of the genus is discussed, as well as implications of the non-monophyly of sections Oliganthos, Mesembrynia and Plantago within subgenus Plantago.

Leptolejeunea nigra (Lejeuneaceae), a new species with brownish black ocelli based upon morphology and DNA sequences

Phytotaxa ◽  
2019 ◽  
Vol 427 (1) ◽  
pp. 31-42
Author(s):  
LEI SHU ◽  
RUI-LIANG ZHU
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Dna Sequences ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Time Span ◽  
Molecular Dating ◽  
Molecular Phylogenetic ◽  
Brownish Black ◽  
A New Species

Based on molecular phylogenetic analyses and morphological characters, a new species from Bangladesh, northern Vietnam, and southwestern China, Leptolejeunea nigra, is described. It is mostly similar to L. balansae but remarkable for having brownish black ocelli in its leaf lobes. In the molecular phylogeny, the samples of L. nigra are not nested within any clade and form an independent lineage. In particular, the molecular dating suggested that the divergence of L. nigra happened in time span of the formation of the Himalayas.

Phylogenetic relationships and a new sectional classification of Croton (Euphorbiaceae) in Australia

2015 ◽  
Vol 28 (4) ◽  
pp. 219 ◽  
Author(s):  
Benjamin W. van Ee ◽  
Paul I. Forster ◽  
Paul E. Berry
Keyword(s):  
Maximum Likelihood ◽  
Dna Sequences ◽  
Pacific Islands ◽  
Australian Species ◽  
Molecular Phylogenetic ◽  
Species Lists ◽  
Nuclear Its ◽  
Australian Flora ◽  
Sectional Classification

A molecular phylogeny, morphological descriptions, species lists and a key to the sections of Croton L. (Euphorbiaceae) recognised for Australia are presented. The molecular phylogenetic results supported the recognition of six sections, to account for the 29 native Australian species. The monophyly of each of these sections was highly supported in the Bayesian and maximum-likelihood analyses of nuclear ITS and plastid trnL–F DNA sequences, whereas their relationships to each other and to other groups were less well resolved. Croton may represent one, two or three separate arrivals to Australia, with support for hypotheses of subsequent dispersals from Australia to Pacific islands and to Asia. Croton sections Argyrati, Arnhemici, Caudati, Dockrilliorum and Insulares are newly described. Croton section Gymnocroton Baill., previously placed in synonymy, is again recognised. Croton armstrongii S.Moore is excluded from the Australian flora.

Phenotypic disparity and adaptive radiation in the genus Cladia (Lecanorales, Ascomycota)

2010 ◽  
Vol 23 (4) ◽  
pp. 239 ◽  
Author(s):  
H. Thorsten Lumbsch ◽  
Sittiporn Parnmen ◽  
Achariya Rangsiruji ◽  
John A. Elix
Keyword(s):  
Dna Sequences ◽  
Adaptive Radiation ◽  
Alternative Hypothesis ◽  
Long Distance ◽  
Broad Distribution ◽  
Bayesian Analyses ◽  
Protein Coding ◽  
Morphological Disparity ◽  
Extant Species ◽  
Nuclear Its

Phylogenetic relationships of the genera Cladia, Heterodea and Ramalinora were reconstructed using a combined dataset of ribosomal nuclear ITS and LSU and mitochondrial SSU, and protein-coding Mcm7 DNA sequences. Maximum likelihood and Bayesian analyses strongly supported a monophyletic group in which the species of the foliose genus Heterodea and the crustose genus Ramalinora were nested within the fruticose genus Cladia. Alternative hypothesis testing rejected an independent status of Ramalinora. We tested the hypothesis that an adaptive radiation led to the morphological disparity found in the Cladia clade. Gamma-statistics indicated a significantly disproportional clustering of origins of extant lineages at the base of the Cladia clade and lineage-through-time plots were also consistent with the hypothesis of an adaptive radiation at the base of the Cladia clade. Ancestral-range reconstructions supported an origin of Cladia and the three major lineages within Cladia in Australia. On the basis of these results, we propose an evolutionary hypothesis for the genus. The results suggest that processes of adaptive radiation of the ancestor of Cladia in Australia led to the morphological disparity in the extant taxa, and that the broad distribution of some extant species is due to subsequent long-distance dispersal.

Molecular phylogenetic insights into the evolution of Eriosema (Fabaceae): a recent tropical savanna-adapted genus

2020 ◽  
Vol 194 (4) ◽  
pp. 439-459
Author(s):  
Elisa Silva Cândido ◽  
Mohammad Vatanparast ◽  
Wanderleia de Vargas ◽  
Luísa M P A Bezerra ◽  
Gwilym P Lewis ◽  
...  
Keyword(s):  
Dna Sequences ◽  
Phylogenetic Analyses ◽  
Divergence Time ◽  
Data Sets ◽  
South American ◽  
Tropical Savanna ◽  
African Species ◽  
Molecular Phylogenetic ◽  
Nuclear Its ◽  
Combined Data

Abstract Eriosema comprises c. 150 species and has a pantropical distribution and two centres of diversity, Africa and America. The species occur in tropical savannas and grasslands, including the cerrado in Brazil. They have adapted to these environments by developing specialized underground organs, and an abundance of trichomes. Here we present the first comprehensive molecular phylogenetic analysis of Eriosema, including species from its entire distribution range and generating 391 new DNA sequences. We sampled 140 species from nine genera of Cajaninae, of which 94 (60% of the genus) were Eriosema. Our analyses were based on the nuclear ITS and plastid rpl32 and trnQ regions, and used maximum likelihood and Bayesian phylogenetic analyses of individual and combined data sets. In all analyses, Eriosema was resolved as monophyletic, but its interspecific relationships are not well resolved. Rhynchosia is not monophyletic, and some African Rhynchosia spp. emerged together as sister to Eriosema. Our study supports the monophyly of Adenodolichos, Dunbaria, Flemingia and Cajanus, but Chrysoscias and Bolusafra formed a clade that is sister to a group of Rhynchosia spp. Paracalyx was resolved as paraphyletic and nested among African Rhynchosia spp. Divergence time analysis suggested that the Eriosema lineages diverged 6.5–10.7 Mya. Two major lineages have diversified in Eriosema, one including most of the African species (4.41–6.68 Mya), the other mainly composed of the South American cerrado species (3.56–5.78 Mya). These results revealed that Eriosema is a recent and tropical savanna-adapted group, and its diversification occurred in the late Miocene in parallel with the expansion of C4 grasslands.

Impatiens tanintharyiensis (Balsaminaceae), a new species from Southern Myanmar

Phytotaxa ◽  
2017 ◽  
Vol 296 (2) ◽  
pp. 171 ◽  
Author(s):  
SAROJ RUCHISANSAKUN ◽  
PIYAKASET SUKSATHAN ◽  
TIMOTHEÜS VAN DER NIET ◽  
SAW LWIN ◽  
STEVEN B. JANSSENS
Keyword(s):  
New Species ◽  
Dna Sequences ◽  
Phylogenetic Analyses ◽  
Conservation Status ◽  
Pollination Syndrome ◽  
Bee Pollination ◽  
Molecular Phylogenetic ◽  
Nuclear Its ◽  
A New Species ◽  
Spacer Dna

Impatiens tanintharyiensis Ruchisansakun, Suksathan & Saw-Lwin from the Tanintharyi region of Southern Myanmar is described and illustrated as a new species. The presence of connate lateral united petals and a four-locular ovary, as well as results of molecular phylogenetic analyses of nuclear ITS and plastid atpB-rbcL spacer DNA sequences, suggest that the new species is a member of Impatiens section Semeiocardium (Zoll.) S.X. Yu & Wei Wang. The new species is morphologically most similar to I. spectabilis Triboun & Suksathan, but can be distinguished by its asymmetric flowers, saccate-bucciniform lower sepal, and shorter, slightly incurved spur. Floral traits, including the presence of a large floral chamber with a wide entrance, are consistent with the bee-pollination syndrome in Impatiens. Since I. tanintharyiensis is only known from two small populations, its conservation status is assessed as Endangered.

scholarly journals Anemonastrum tenuicaule and A. antucense (Ranunculaceae), new combinations for a New Zealand endemic species and its South American relative

PhytoKeys ◽  
2018 ◽  
Vol 99 ◽  
pp. 107-124 ◽  
Author(s):  
Sergei L. Mosyakin ◽  
Peter J. de Lange
Keyword(s):  
New Zealand ◽  
South America ◽  
Morphological Diversity ◽  
Distribution Patterns ◽  
Sensu Stricto ◽  
South American ◽  
Long Distance ◽  
Molecular Phylogenetic ◽  
Relationship Of ◽  
Base Chromosome Number

A rational taxonomic circumscription of genera in tribe Anemoneae (Ranunculaceae) is briefly discussed. It is concluded that, in view of the morphological diversity of the group and recent molecular phylogenetic findings, a moderately narrow approach to the re-circumscription of genera earlier included in Anemone sensu lato is preferable, in particular, with the recognition of the lineage with the base chromosome number x = 7 (Anemonesubgen.Anemonidium) as two genera, Hepatica sensu stricto and Anemonastrum in an expanded circumscription (including Anemonidium, Arsenjevia, Jurtsevia, and Tamuria). Following these conclusions, new nomenclatural combinations are proposed for two related species endemic to New Zealand and South America, respectively: Anemonastrumtenuicaule (= Anemonetenuicaulis, Ranunculustenuicaulis) and Anemonastrumantucense (= Anemoneantucensis). Information on typification is updated: the lectotype of Anemoneantucensis is the specimen from P and not a specimen from G, and the lectotype of Ranunculustenuicaulis is a specimen from AK. Biogeographic scenarios already proposed to explain the relationship of these two species and some other South America – New Zealand distribution patterns are discussed. It is concluded that the long-distance dispersal scenario fits best the available data for Anemonastrum. Two host-specific and geographically restricted species of Urosystis parasitizing A.tenuicaule and A.antucense are briefly discussed.

scholarly journals Phylogeny and Phylogeography ofMyrmica rubraComplex (Myrmicinae) in the Japanese Alps

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Shouhei Ueda ◽  
Taito Nozawa ◽  
Tetsuya Matsuzuki ◽  
Ryo-ichi Seki ◽  
Shinya Shimamoto ◽  
...  
Keyword(s):  
Dna Sequences ◽  
Phylogenetic Analyses ◽  
The Other ◽  
Mountain Range ◽  
Geographical Differentiation ◽  
Altitudinal Distribution ◽  
Mountain Ranges ◽  
Long Wavelength ◽  
Molecular Phylogenetic ◽  
Morphological Species

We investigated the genetic diversification of the mountain ant,Myrmica kotokui, in the Japanese Alps by using molecular phylogenetic analyses.Myrmica kotokuiis widely distributed in Japan, and in the central Japanese Alps it is found only between elevations of approximately 1000 to 2000 m. We hypothesized that genetically distinct clades of this ant species might inhabit different mountain ranges in central Japan. To test this hypothesis, we reconstructed a molecular phylogeny using the DNA sequences of the mitochondrialcytochrome oxidase Igene and the nuclearlong-wavelength rhodopsingene ofM. kotokuispecimens collected from six mountain ranges in the Japanese Alps. The phylogeny showed four highly differentiated clades. However, the correspondence between the clades and morphological species was a little confusing. Two clades were composed only ofM. kotokuispecimens, whereas the other two clades were composed of multispecies, suggesting the possibility of multispecies composition of putativeM. kotokui. The distribution pattern of these clades did not support our hypothesis of geographical differentiation, because two were distributed across all ranges, and a third was distributed in five of the six ranges. On the other hand, we found a pattern in the altitudinal distribution of the clades: one clade was distributed only at higher elevations, and the others were distributed at lower elevations. Thus, the ant clades do not show geographical segregation by mountain range, but they do show altitudinal differences.

Rock star flowers: Conchocarpus hendrixii (Galipeinae, Rutaceae), a new species from Eastern Brazil with notes on its phylogenetic position in the genus

Phytotaxa ◽  
2019 ◽  
Vol 422 (1) ◽  
pp. 75-92 ◽  
Author(s):  
MILTON GROPPO ◽  
IDIMÁ GONÇALVES COSTA ◽  
CARLA POLESELLI BRUNIERA ◽  
CAROLINA FERREIRA ◽  
LAURA AFONSO ◽  
...  
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Pollen Grains ◽  
Phylogenetic Position ◽  
Mountain Ranges ◽  
Staminal Tube ◽  
Molecular Phylogenetic ◽  
Nuclear Its ◽  
Atlantic Rainforest Biome ◽  
A New Species

A new species, Conchocarpus hendrixii (tribe Galipeinae, Rutaceae), is described and illustrated. To date, this new species is known from populations observed in the municipalities of Cardoso Moreira and São Fidélis in Serra da Bandeira/Serra da Vista mountain ranges in northern Rio de Janeiro state in the Atlantic Rainforest biome and was brought to light as an undescribed species thanks to photographs shared on the social media site Facebook. The epithet “hendrixii” is in honor of Jimi Hendrix, guitarist and singer-songwriter, who wrote the song “Purple Haze,” in reference to the purple color of the flowers of the new species. Analyzes showed that flowers of the new species bear a staminal tube, a characteristic present only in C. odoratissimus among the Conchocarpus. However, this species bears flowers with much shorter staminal tubes (c. 2–2.5 mm in length v. 1–1.2 cm in the new species) and smaller flowers, among other morphologically dissimilar characteristics. Molecular phylogenetic analysis using nuclear (ITS-1 and IT-2) and plastidial markers (trnL-trnF and rps16 intron) were conducted and demonstrated that the new species belongs to an internal clade in Conchocarpus, together with species formerly assigned to Almeidea (currently included in Conchocarpus). The presence of pantoporate pollen grains, a synapomorphic trait to this clade supports the molecular results. Conservation status as well as data from foliar and floral (with an emphasis on the staminal tube) anatomy are presented.

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