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European Red List of Lycopods and Ferns

Peer reviewe

Potential of herbariomics for studying repetitive DNA in angiosperms

Repetitive DNA has an important role in angiosperm genomes and is relevant to our understanding of genome size variation, polyploidisation and genome dynamics more broadly. Much recent work has harnessed the power of high-throughput sequencing (HTS) technologies to advance the study of repetitive DNA in flowering plants. Herbarium collections provide a useful historical perspective on genome diversity through time, but their value for the study of repetitive DNA has not yet been explored. We propose that herbarium DNA may prove as useful for studies of repetitive DNA content as it has for reconstructed organellar genomes and low-copy nuclear sequence data. Here we present a case study in the tobacco genus (Nicotiana; Solanaceae), showing that herbarium specimens can provide accurate estimates of the repetitive content of angiosperm genomes by direct comparison with recently-collected material. We show a strong correlation between the abundance of repeat clusters, e.g., different types of transposable elements and satellite DNA, in herbarium collections versus recent material for four sets of Nicotiana taxa. These results suggest that herbarium specimen genome sequencing (herbariomics) holds promise for both repeat discovery and analyses that aim to investigate the role of repetitive DNAs in genomic evolution, particularly genome size evolution and/or contributions of repeats to the regulation of gene space

Tectaria subsageniacea Christenh. 2010, comb. nov.

Tectaria subsageniacea (Christ) Christenh., comb. nov. Basionym:— Aspidium subsageniaceum Christ (1906: 240) Homotypic synonyms:— Ctenitopsis subsageniacea (Christ) Ching (1938: 311), Dryopteris subsageniacea (Christ) Christensen (1913: 40), Heterogonium subsageniaceum (Christ) Holttum (1955: 273). Type:— CHINA: Guizhou: Tien-Sen-Kiao, sud Tin-Fan, près rivière, nov. 1904, Cavalerie 1916 (holotype P?, not found).Published as part of Christenhusz, Maarten J. M., 2010, New combinations in the fern genus Tectaria (Tectariaceae) for the Flora of China, pp. 58-59 in Phytotaxa 10 on page 59, DOI: 10.11646/phytotaxa.10.1.9, http://zenodo.org/record/489983

Streptocarpus inconspicuus Christenh. 2012, comb. nov.

Streptocarpus inconspicuus (Burtt) Christenh., comb. nov. Basionym: Saintpaulia inconspicua Burtt (1958: 557). Type: TANZANIA. Morogoro Distr.: Uluguru Mountains, Morogoro, Kisaki Road, moist soil in forest, 18 December 1934, Bruce 328 (holotype K!-000378645).Published as part of Christenhusz, Maarten J. M., 2012, On African violets and Cape primroses-towards a monophyletic Streptocarpus (Gesneriaceae), pp. 3-9 in Phytotaxa 46 on page 6, DOI: 10.11646/phytotaxa.46.1.2, http://zenodo.org/record/481479

Tectaria chinensis Christenh. 2010, comb. nov.

Tectaria chinensis (Ching & Chu H.Wang) Christenh., comb. nov. Basionym:— Ctenitopsis chinensis Ching & Wang (1981: 124). Type:— CHINA: Yunnan: Hekou, Department of Biology of Yunnan University 512 (holotype PE)Published as part of Christenhusz, Maarten J. M., 2010, New combinations in the fern genus Tectaria (Tectariaceae) for the Flora of China, pp. 58-59 in Phytotaxa 10 on page 58, DOI: 10.11646/phytotaxa.10.1.9, http://zenodo.org/record/489983

Streptocarpus ionanthus subsp. grandifolius Christenh. 2012, comb. nov.

Streptocarpus ionanthus subsp. grandifolius (B.L.Burtt) Christenh., comb. nov. Basionym: Saintpaulia grandifolia B.L. Burtt (1958: 560). Type: TANZANIA. Lushoto Distr.: West Usambara Mountains, Lutindi, 1 July 1955, Punter ref. S, cultivated at R. B. G. Edinburgh, C1575 (holotype E!, isotype E!). Homotypic synonym: Saintpaulia ionantha subsp. grandifolia (B.L.Burtt) I.Darbysh. Heterotypic synonym: Saintpaulia ulugurensis HastonPublished as part of Christenhusz, Maarten J. M., 2012, On African violets and Cape primroses-towards a monophyletic Streptocarpus (Gesneriaceae), pp. 3-9 in Phytotaxa 46 on page 6, DOI: 10.11646/phytotaxa.46.1.2, http://zenodo.org/record/481479

Tectaria acrocarpa Christenh. 2010, comb. nov.

Tectaria acrocarpa (Ching) Christenh., comb. nov. Basionym:— Ctenitopsis acrocarpa Ching in Ching & Wang (1981: 124). Type:— CHINA: Yunnan: Jinping, S.K. Wu 3985 (holotype PE).Published as part of Christenhusz, Maarten J. M., 2010, New combinations in the fern genus Tectaria (Tectariaceae) for the Flora of China, pp. 58-59 in Phytotaxa 10 on page 58, DOI: 10.11646/phytotaxa.10.1.9, http://zenodo.org/record/489983

Streptocarpus goetzeanus Christenh. 2012, comb. nov.

Streptocarpus goetzeanus (Engl.) Christenh., comb. nov. Basionym: Saintpaulia goetzeana Engler (1900: 481). Type: TANZANIA. Morogoro Distr.: Uluguru-Berge, am Lukwangule-Plateau, Urwald ams Felsbloch zwischen Moos, 1300–2000 m, 28 November 1898, Goetze 245 (holotype B!).Published as part of Christenhusz, Maarten J. M., 2012, On African violets and Cape primroses-towards a monophyletic Streptocarpus (Gesneriaceae), pp. 3-9 in Phytotaxa 46 on page 6, DOI: 10.11646/phytotaxa.46.1.2, http://zenodo.org/record/481479

Streptocarpus ionanthus subsp. ionanthus var. diplotrichus Christenh. 2012, comb. nov.

<i>Streptocarpus ionanthus</i> subsp. <i>ionanthus</i> var. <i>diplotrichus</i> (B.L.Burtt) Christenh., <i>comb. nov.</i> <p> Basionym: <i>Saintpaulia diplotricha</i> Burtt (1947: 23).</p> <p> Type: TANZANIA. Lushoto Distr.: Usambara, 1000 m, 26 November 1895, <i>Buchwald 149</i> (holotype K!- 000378665, isotypes B!, BM, BR).</p> <p> Homotypic synonym: <i>Saintpaulia ionantha</i> subsp. <i>ionantha</i> var. <i>diplotricha</i> (B.L.Burtt) I.Darbysh.</p>Published as part of <i>Christenhusz, Maarten J. M., 2012, On African violets and Cape primroses-towards a monophyletic Streptocarpus (Gesneriaceae), pp. 3-9 in Phytotaxa 46</i> on page 6, DOI: 10.11646/phytotaxa.46.1.2, <a href="http://zenodo.org/record/4814794">http://zenodo.org/record/4814794</a&gt