Urticaceae

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Zengyuan Wu - One of the best experts on this subject based on the ideXlab platform.

  • characteristics and mutational hotspots of plastomes in debregeasia Urticaceae
    Frontiers in Genetics, 2020
    Co-Authors: Ruonan Wang, Richard I Milne, Xinyu Du, Zengyuan Wu
    Abstract:

    Debregeasia is an economically important genus of the nettle family (Urticaceae). Previous systematic studies based on morphology, or using up to four plastome regions, have not satisfactorily resolved relationships within the genus. Here, we report 25 new plastomes for Urticaceae, including 12 plastomes from five Debregeasia species and 13 plastomes from other genera. Together with the one published plastome for Debregeasia, we analyzed plastome structure and character, identified mutation hotspots and loci under selection, and constructed phylogenies. The plastomes of Debregeasia were found to be very conservative, with a size from 155,743 bp to 156,065 bp, and no structural variation. Eleven mutation hotspots were identified, including three (rpoB-trnC-GCA, trnT-GGU-psbD and ycf1) that are highly variable both within Debregeasia and among genera; these show high potential value for future DNA barcoding, population genetics and phylogenetic reconstruction. Selection pressure analysis revealed nine genes (clpP, ndhF, petB, psbA, psbK, rbcL, rpl23, ycf2, and ycf1) that may experience positive selection. Phylogenomic analyses results suggest that Debregeasia was monophyletic, and closest to Boehmeria among genera examined. Within Debregeasia, D. longifolia was sister to D. saeneb, whereas D. elliptica, D. orientalis with D. squamata formed the other subclade. This study enriches organelle genome resources for Urticaceae, and highlights the utility of plastome data for detecting mutation hotspots for evolutionary and systematic analysis.

  • testing darwin s transoceanic dispersal hypothesis for the inland nettle family Urticaceae
    Ecology Letters, 2018
    Co-Authors: Zengyuan Wu, Jim Provan, Hong Wang, Chiajui Chen, Marc W Cadotte, Bruno S Amorim, Dezhu Li, Richard I Milne
    Abstract:

    : Dispersal is a fundamental ecological process, yet demonstrating the occurrence and importance of long-distance dispersal (LDD) remains difficult, having rarely been examined for widespread, non-coastal plants. To address this issue, we integrated phylogenetic, molecular dating, biogeographical, ecological, seed biology and oceanographic data for the inland Urticaceae. We found that Urticaceae originated in Eurasia c. 69 Ma, followed by ≥ 92 LDD events between landmasses. Under experimental conditions, seeds of many Urticaceae floated for > 220 days, and remained viable after 10 months in seawater, long enough for most detected LDD events, according to oceanographic current modelling. Ecological traits analyses indicated that preferences for disturbed habitats might facilitate LDD. Nearly half of all LDD events involved dioecious taxa, so population establishment in dioecious Urticaceae requires multiple seeds, or occasional selfing. Our work shows that seawater LDD played an important role in shaping the geographical distributions of Urticaceae, providing empirical evidence for Darwin's transoceanic dispersal hypothesis.

  • six new species of elatostema Urticaceae from yunnan
    Plant Diversity, 2016
    Co-Authors: Wentsai Wang, Zengyuan Wu
    Abstract:

    Abstract Six new species of the genus Elatostema (Urticaceae), E. dentatocaudatum , E. baoshanense , E. cuipingfengense , E. viridicostatum , E. flexuosicaule and E. globosostigmatum , from Yunnan Province, China are described and illustrated. The diagnostic differences between the six new species and their respective allies are given.

  • ancestral state reconstruction reveals rampant homoplasy of diagnostic morphological characters in Urticaceae conflicting with current classification schemes
    PLOS ONE, 2015
    Co-Authors: Zengyuan Wu, Hong Wang, Chiajui Chen, Richard I Milne, Dezhu Li
    Abstract:

    Urticaceae is a family with more than 2000 species, which contains remarkable morphological diversity. It has undergone many taxonomic reorganizations, and is currently the subject of further systematic studies. To gain more resolution in systematic studies and to better understand the general patterns of character evolution in Urticaceae, based on our previous phylogeny including 169 accessions comprising 122 species across 47 Urticaceae genera, we examined 19 diagnostic characters, and analysed these employing both maximum-parsimony and maximum-likelihood approaches. Our results revealed that 16 characters exhibited multiple state changes within the family, with ten exhibiting >eight changes and three exhibiting between 28 and 40. Morphological synapomorphies were identified for many clades, but the diagnostic value of these was often limited due to reversals within the clade and/or homoplasies elsewhere. Recognition of the four clades comprising the family at subfamily level can be supported by a small number carefully chosen defining traits for each. Several non-monophyletic genera appear to be defined only by characters that are plesiomorphic within their clades, and more detailed work would be valuable to find defining traits for monophyletic clades within these. Some character evolution may be attributed to adaptive evolution in Urticaceae due to shifts in habitat or vegetation type. This study demonstrated the value of using phylogeny to trace character evolution, and determine the relative importance of morphological traits for classification.

  • molecular phylogeny of the nettle family Urticaceae inferred from multiple loci of three genomes and extensive generic sampling
    Molecular Phylogenetics and Evolution, 2013
    Co-Authors: Zengyuan Wu, Hong Wang, Richard I Milne, Alex K Monro, Tingshuang Yi, Dezhu Li
    Abstract:

    Urticaceae is one of the larger Angiosperm families, but relationships within it remain poorly known. This study presents the first densely sampled molecular phylogeny of Urticaceae, using maximum likelihood (ML), maximum parsimony (MP) and Bayesian inference (BI) to analyze the DNA sequence data from two nuclear (ITS and 185), four chloroplast (marK, rbcL, rpl14-rps8-infA-rpl36, trnL-trnF) and one mitochondrial (matR) loci. We sampled 169 accessions representing 122 species, representing 47 of the 54 recognized genera within Urticaceae, including four of the six sometimes separated as Cecropiaceae. Major results included: (1) Urticaceae including Cecropiaceae was monophyletic; (2) Cecropiaceae was biphyletic, with both lineages nested within Urticaceae; (3) Urticaceae can be divided into four well-supported clades; (4) previously erected tribes or subfamilies were broadly supported, with some additions and alterations; (5) the monophyly of many genera was supported, whereas Boehmeria, Pellionia, Pouzolzia and Urera were clearly polyphyletic, while Urtica and Pilea each had a small genus nested within them; (6) relationships between genera were clarified, mostly with substantial support. These results clarify that some morphological characters have been overstated and others understated in previous classifications of the family, and provide a strong foundation for future studies on biogeography, character evolution, and circumscription of difficult genera. (C) 2013 Elsevier Inc. All rights reserved.

Alex K Monro - One of the best experts on this subject based on the ideXlab platform.

  • The mystery of the tiny Urticaceae-feeders: documentation of the first leaf-mining Nepticulidae (Lepidoptera) species from equatorial America associated with Phenax, Boehmeria and Pilea
    Biologija, 2017
    Co-Authors: Jonas R. Stonis, Arūnas Diškus, Andrius Remeikis, Alex K Monro
    Abstract:

    The paper presents the first documentation of Urticaceae-feeding Nepticulidae species in South America and describes four new species: two species feeding on Phenax Wedd. ( Stigmella singularia Diskus & Stonis, sp. nov. and S. lata Diskus & Stonis, sp. nov.), one species on Boehmeria Jacq. ( S. boehmeriphaga Diskus & Stonis, sp. nov.), and one species on Pilea Lindl. ( S. auripurpurata Diskus & Stonis, sp. nov.); all from the equatorial Andes. In addition, leaf-mines of an unknown Stigmella taxa feeding on Phenax are documented. The newly discovered Urticaceae-feeding Nepticulidae exhibit some morphological and taxonomical diversity: two species groups, Stigmella singularia and S. marmorea , are revealed (the latter is designated in the current paper).

  • Urticaceae feeders from the family tischeriidae descriptions of two new species and new genus paratischeria gen nov
    Biologija, 2017
    Co-Authors: Jonas R. Stonis, Arūnas Diškus, Brigita Paulaviciūtė, Alex K Monro
    Abstract:

    We describe a  new genus Paratischeria Diskus & Stonis, gen. nov. and present the first observations of Urticaceae-feeding Tischeriidae species in South America and two new Urticaceaefeeding species ( Paratischeria fasciata  sp. nov. and P. ferruginea Diskus & Stonis, sp. nov. from the Andes of Bolivia and Ecuador). Together with the  African P. urticicolella (Ghesquiere) (comb. nov.) from Congo, they are attributed to the newly designated ferruginea species group.

  • molecular phylogeny of the nettle family Urticaceae inferred from multiple loci of three genomes and extensive generic sampling
    Molecular Phylogenetics and Evolution, 2013
    Co-Authors: Zengyuan Wu, Hong Wang, Richard I Milne, Alex K Monro, Tingshuang Yi, Dezhu Li
    Abstract:

    Urticaceae is one of the larger Angiosperm families, but relationships within it remain poorly known. This study presents the first densely sampled molecular phylogeny of Urticaceae, using maximum likelihood (ML), maximum parsimony (MP) and Bayesian inference (BI) to analyze the DNA sequence data from two nuclear (ITS and 185), four chloroplast (marK, rbcL, rpl14-rps8-infA-rpl36, trnL-trnF) and one mitochondrial (matR) loci. We sampled 169 accessions representing 122 species, representing 47 of the 54 recognized genera within Urticaceae, including four of the six sometimes separated as Cecropiaceae. Major results included: (1) Urticaceae including Cecropiaceae was monophyletic; (2) Cecropiaceae was biphyletic, with both lineages nested within Urticaceae; (3) Urticaceae can be divided into four well-supported clades; (4) previously erected tribes or subfamilies were broadly supported, with some additions and alterations; (5) the monophyly of many genera was supported, whereas Boehmeria, Pellionia, Pouzolzia and Urera were clearly polyphyletic, while Urtica and Pilea each had a small genus nested within them; (6) relationships between genera were clarified, mostly with substantial support. These results clarify that some morphological characters have been overstated and others understated in previous classifications of the family, and provide a strong foundation for future studies on biogeography, character evolution, and circumscription of difficult genera. (C) 2013 Elsevier Inc. All rights reserved.

  • three new species of pilea Urticaceae from limestone karst in china
    PhytoKeys, 2012
    Co-Authors: Alex K Monro, C J Chen
    Abstract:

    Three hitherto undescribed species of Pilea (Urticaceae) from limestone karst in China are described and illustrated. Affinities of the species are discussed and Global Species Conservation Assessments presented. The new species are Pilea cavernicola A.K. Monro, C.J. Chen & Y.G. Wei, sp. nov. (Vulnerable) which most closely resembles Pilea scripta (Buch.-Ham. ex D.Don) Wedd. and Pilea gracilis Handel-Mazzetti, Pilea shizongensis A.K. Monro, C.J. Chen & Y.G. Wei, sp. nov. (Endangered) which is most similar to Pilea aquarum Dunn and Pilea guizhouensis A.K. Monro, C.J. Chen & Y.G. Wei, sp. nov. (Vulnerable) which resembles Pilea boniana Gagnep. and Pilea rubriflora C. Wright mostclosely.

  • name changes for chinese pilea Urticaceae
    Novon, 2007
    Co-Authors: Chiajui Chen, Alex K Monro, Lian Chen
    Abstract:

    Two new names in Pilea Lindley from China are published: Pilea panzhihuaensis C. J. Chen, A. K. Monro & L. Chen and P. spicata C. J. Chen & A. K. Monro. A lectotype is designated for the basionym of P. spicata, Smithiella myriantha Dunn. The origins of the new names are explained, synonymy of the resurrected name is given, and an illustration of P. panzhihuaensis is provided.

Dezhu Li - One of the best experts on this subject based on the ideXlab platform.

  • testing darwin s transoceanic dispersal hypothesis for the inland nettle family Urticaceae
    Ecology Letters, 2018
    Co-Authors: Zengyuan Wu, Jim Provan, Hong Wang, Chiajui Chen, Marc W Cadotte, Bruno S Amorim, Dezhu Li, Richard I Milne
    Abstract:

    : Dispersal is a fundamental ecological process, yet demonstrating the occurrence and importance of long-distance dispersal (LDD) remains difficult, having rarely been examined for widespread, non-coastal plants. To address this issue, we integrated phylogenetic, molecular dating, biogeographical, ecological, seed biology and oceanographic data for the inland Urticaceae. We found that Urticaceae originated in Eurasia c. 69 Ma, followed by ≥ 92 LDD events between landmasses. Under experimental conditions, seeds of many Urticaceae floated for > 220 days, and remained viable after 10 months in seawater, long enough for most detected LDD events, according to oceanographic current modelling. Ecological traits analyses indicated that preferences for disturbed habitats might facilitate LDD. Nearly half of all LDD events involved dioecious taxa, so population establishment in dioecious Urticaceae requires multiple seeds, or occasional selfing. Our work shows that seawater LDD played an important role in shaping the geographical distributions of Urticaceae, providing empirical evidence for Darwin's transoceanic dispersal hypothesis.

  • ancestral state reconstruction reveals rampant homoplasy of diagnostic morphological characters in Urticaceae conflicting with current classification schemes
    PLOS ONE, 2015
    Co-Authors: Zengyuan Wu, Hong Wang, Chiajui Chen, Richard I Milne, Dezhu Li
    Abstract:

    Urticaceae is a family with more than 2000 species, which contains remarkable morphological diversity. It has undergone many taxonomic reorganizations, and is currently the subject of further systematic studies. To gain more resolution in systematic studies and to better understand the general patterns of character evolution in Urticaceae, based on our previous phylogeny including 169 accessions comprising 122 species across 47 Urticaceae genera, we examined 19 diagnostic characters, and analysed these employing both maximum-parsimony and maximum-likelihood approaches. Our results revealed that 16 characters exhibited multiple state changes within the family, with ten exhibiting >eight changes and three exhibiting between 28 and 40. Morphological synapomorphies were identified for many clades, but the diagnostic value of these was often limited due to reversals within the clade and/or homoplasies elsewhere. Recognition of the four clades comprising the family at subfamily level can be supported by a small number carefully chosen defining traits for each. Several non-monophyletic genera appear to be defined only by characters that are plesiomorphic within their clades, and more detailed work would be valuable to find defining traits for monophyletic clades within these. Some character evolution may be attributed to adaptive evolution in Urticaceae due to shifts in habitat or vegetation type. This study demonstrated the value of using phylogeny to trace character evolution, and determine the relative importance of morphological traits for classification.

  • molecular phylogeny of the nettle family Urticaceae inferred from multiple loci of three genomes and extensive generic sampling
    Molecular Phylogenetics and Evolution, 2013
    Co-Authors: Zengyuan Wu, Hong Wang, Richard I Milne, Alex K Monro, Tingshuang Yi, Dezhu Li
    Abstract:

    Urticaceae is one of the larger Angiosperm families, but relationships within it remain poorly known. This study presents the first densely sampled molecular phylogeny of Urticaceae, using maximum likelihood (ML), maximum parsimony (MP) and Bayesian inference (BI) to analyze the DNA sequence data from two nuclear (ITS and 185), four chloroplast (marK, rbcL, rpl14-rps8-infA-rpl36, trnL-trnF) and one mitochondrial (matR) loci. We sampled 169 accessions representing 122 species, representing 47 of the 54 recognized genera within Urticaceae, including four of the six sometimes separated as Cecropiaceae. Major results included: (1) Urticaceae including Cecropiaceae was monophyletic; (2) Cecropiaceae was biphyletic, with both lineages nested within Urticaceae; (3) Urticaceae can be divided into four well-supported clades; (4) previously erected tribes or subfamilies were broadly supported, with some additions and alterations; (5) the monophyly of many genera was supported, whereas Boehmeria, Pellionia, Pouzolzia and Urera were clearly polyphyletic, while Urtica and Pilea each had a small genus nested within them; (6) relationships between genera were clarified, mostly with substantial support. These results clarify that some morphological characters have been overstated and others understated in previous classifications of the family, and provide a strong foundation for future studies on biogeography, character evolution, and circumscription of difficult genera. (C) 2013 Elsevier Inc. All rights reserved.

  • two new species and one new variety of elatostema Urticaceae from china
    Annales Botanici Fennici, 2013
    Co-Authors: Zengyuan Wu, Hong Wang, Dezhu Li, Wentsai Wang
    Abstract:

    Wu, Z. Y., Li, D. Z., Wang, H. & Wang, W. T. 2013: Two new species and one new variety of Elatostema (Urticaceae) from China. - Ann. Bot. Fennici 50: 75-78.

  • elatostema densistriolatum sp nov e latistipulum sp nov and e cyrtandrifolium var hirsutum var nov Urticaceae from southwest china
    Nordic Journal of Botany, 2011
    Co-Authors: Zengyuan Wu, Hong Wang, Wentsai Wang, Dezhu Li
    Abstract:

    Two new species and one new variety of Elatostema J. R. Forst. & G. Forst. (Urticaceae) are described from Yunnan and Xizang, China. Habitat details and morphological comparison with similar species are given and discussed. The new taxa proposed are: Elatostema densistriolatum W. T. Wang & Zeng. Y. Wu, E. latistipulum W. T. Wang & Zeng Y. Wu and E. cyrtandrifolium (Zoll. & Mor.) Miq. var. hirsutum W. T. Wang & Zeng Y. Wu.

Hong Wang - One of the best experts on this subject based on the ideXlab platform.

  • testing darwin s transoceanic dispersal hypothesis for the inland nettle family Urticaceae
    Ecology Letters, 2018
    Co-Authors: Zengyuan Wu, Jim Provan, Hong Wang, Chiajui Chen, Marc W Cadotte, Bruno S Amorim, Dezhu Li, Richard I Milne
    Abstract:

    : Dispersal is a fundamental ecological process, yet demonstrating the occurrence and importance of long-distance dispersal (LDD) remains difficult, having rarely been examined for widespread, non-coastal plants. To address this issue, we integrated phylogenetic, molecular dating, biogeographical, ecological, seed biology and oceanographic data for the inland Urticaceae. We found that Urticaceae originated in Eurasia c. 69 Ma, followed by ≥ 92 LDD events between landmasses. Under experimental conditions, seeds of many Urticaceae floated for > 220 days, and remained viable after 10 months in seawater, long enough for most detected LDD events, according to oceanographic current modelling. Ecological traits analyses indicated that preferences for disturbed habitats might facilitate LDD. Nearly half of all LDD events involved dioecious taxa, so population establishment in dioecious Urticaceae requires multiple seeds, or occasional selfing. Our work shows that seawater LDD played an important role in shaping the geographical distributions of Urticaceae, providing empirical evidence for Darwin's transoceanic dispersal hypothesis.

  • ancestral state reconstruction reveals rampant homoplasy of diagnostic morphological characters in Urticaceae conflicting with current classification schemes
    PLOS ONE, 2015
    Co-Authors: Zengyuan Wu, Hong Wang, Chiajui Chen, Richard I Milne, Dezhu Li
    Abstract:

    Urticaceae is a family with more than 2000 species, which contains remarkable morphological diversity. It has undergone many taxonomic reorganizations, and is currently the subject of further systematic studies. To gain more resolution in systematic studies and to better understand the general patterns of character evolution in Urticaceae, based on our previous phylogeny including 169 accessions comprising 122 species across 47 Urticaceae genera, we examined 19 diagnostic characters, and analysed these employing both maximum-parsimony and maximum-likelihood approaches. Our results revealed that 16 characters exhibited multiple state changes within the family, with ten exhibiting >eight changes and three exhibiting between 28 and 40. Morphological synapomorphies were identified for many clades, but the diagnostic value of these was often limited due to reversals within the clade and/or homoplasies elsewhere. Recognition of the four clades comprising the family at subfamily level can be supported by a small number carefully chosen defining traits for each. Several non-monophyletic genera appear to be defined only by characters that are plesiomorphic within their clades, and more detailed work would be valuable to find defining traits for monophyletic clades within these. Some character evolution may be attributed to adaptive evolution in Urticaceae due to shifts in habitat or vegetation type. This study demonstrated the value of using phylogeny to trace character evolution, and determine the relative importance of morphological traits for classification.

  • molecular phylogeny of the nettle family Urticaceae inferred from multiple loci of three genomes and extensive generic sampling
    Molecular Phylogenetics and Evolution, 2013
    Co-Authors: Zengyuan Wu, Hong Wang, Richard I Milne, Alex K Monro, Tingshuang Yi, Dezhu Li
    Abstract:

    Urticaceae is one of the larger Angiosperm families, but relationships within it remain poorly known. This study presents the first densely sampled molecular phylogeny of Urticaceae, using maximum likelihood (ML), maximum parsimony (MP) and Bayesian inference (BI) to analyze the DNA sequence data from two nuclear (ITS and 185), four chloroplast (marK, rbcL, rpl14-rps8-infA-rpl36, trnL-trnF) and one mitochondrial (matR) loci. We sampled 169 accessions representing 122 species, representing 47 of the 54 recognized genera within Urticaceae, including four of the six sometimes separated as Cecropiaceae. Major results included: (1) Urticaceae including Cecropiaceae was monophyletic; (2) Cecropiaceae was biphyletic, with both lineages nested within Urticaceae; (3) Urticaceae can be divided into four well-supported clades; (4) previously erected tribes or subfamilies were broadly supported, with some additions and alterations; (5) the monophyly of many genera was supported, whereas Boehmeria, Pellionia, Pouzolzia and Urera were clearly polyphyletic, while Urtica and Pilea each had a small genus nested within them; (6) relationships between genera were clarified, mostly with substantial support. These results clarify that some morphological characters have been overstated and others understated in previous classifications of the family, and provide a strong foundation for future studies on biogeography, character evolution, and circumscription of difficult genera. (C) 2013 Elsevier Inc. All rights reserved.

  • two new species and one new variety of elatostema Urticaceae from china
    Annales Botanici Fennici, 2013
    Co-Authors: Zengyuan Wu, Hong Wang, Dezhu Li, Wentsai Wang
    Abstract:

    Wu, Z. Y., Li, D. Z., Wang, H. & Wang, W. T. 2013: Two new species and one new variety of Elatostema (Urticaceae) from China. - Ann. Bot. Fennici 50: 75-78.

  • elatostema densistriolatum sp nov e latistipulum sp nov and e cyrtandrifolium var hirsutum var nov Urticaceae from southwest china
    Nordic Journal of Botany, 2011
    Co-Authors: Zengyuan Wu, Hong Wang, Wentsai Wang, Dezhu Li
    Abstract:

    Two new species and one new variety of Elatostema J. R. Forst. & G. Forst. (Urticaceae) are described from Yunnan and Xizang, China. Habitat details and morphological comparison with similar species are given and discussed. The new taxa proposed are: Elatostema densistriolatum W. T. Wang & Zeng. Y. Wu, E. latistipulum W. T. Wang & Zeng Y. Wu and E. cyrtandrifolium (Zoll. & Mor.) Miq. var. hirsutum W. T. Wang & Zeng Y. Wu.

Wentsai Wang - One of the best experts on this subject based on the ideXlab platform.