Morphology, ultrastructure and phylogenetic affinities of the single-island endemic Anthoceros cristatus Steph. (Ascension Island)
Morphology, ultrastructure and phylogenetic affinities of the single-island endemic Anthoceros cristatus Steph. (Ascension Island)
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单岛特有花冠花的形态学、超微结构和系统发育亲缘关系。
DOI:
10.1080/03736687.2017.1302153
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发表时间:
2017
影响因子:
1.9
通讯作者:
Villarreal J
中科院分区:
文献类型:
--
作者:
Villarreal J
Oceanic islands, due to their geographical isolation, number, precisely defined boundaries and their geomorphological and climatic diversity, have provided enormous insights into speciation, dispersal, adaptive radiations and macroecological processes. One of the key components of these island studies is the role of single-island endemics (SIEs) as, in many instances, island biogeography models use the proportion of SIEs to infer evolutionary processes. It is, therefore, imperative to undertake critical taxonomic revisions to evaluate SIEs because changes in the number of SIEs have a key impact on downstream biogeographic analyses. We revise the special case of a putative SIEAnthoceros cristatuson Ascension Island using light and electron microscopy, as well phylogenomic tools.A. cristatuslies within theA. agrestis/A. punctatuscomplex but differs from the sister speciesA. agrestisandA. punctatusin spore morphology and gametophytic lamellae fringed with caducous marginal cells. The present confirmation, from both molecules and morphology, of the SIE status ofAnthoceros cristatusand its restricted distribution on the Island makes the preservation of its habitat a conservation priority. Ascension Island is the tip of an undersea volcano that is thought to have emerged from the ocean 1 million years ago with an area of approximately 91 km2, with Green Mountain as the highest elevation (∼859 m a.s.l.). Ascension has a relative low bryophyte species diversity of 87 spp but this includes 12 endemics (∼14%); a much higher level of endemism than on the far more speciose Macaronesian Islands.
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影响因子:
8.8
作者:
J. Rosindell;Albert B. Phillimore
通讯作者:
J. Rosindell;Albert B. Phillimore
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
J. C. Villarreal;C. Cargill;L. Söderström;A. Hagborg;M. Konrat
通讯作者:
M. Konrat
影响因子:
6.5
作者:
Gray, Alan;Cavers, Stephen
通讯作者:
Cavers, Stephen
影响因子:
6.5
作者:
Jairo Patiño;Jairo Patiño;Jairo Patiño;M. Carine;P. Mardulyn;N. Devos;Rubén G. Mateo;Rubén G. Mateo;J. González-Mancebo;A. J. Shaw;A. Vanderpoorten;A. Vanderpoorten
通讯作者:
Jairo Patiño;Jairo Patiño;Jairo Patiño;M. Carine;P. Mardulyn;N. Devos;Rubén G. Mateo;Rubén G. Mateo;J. González-Mancebo;A. J. Shaw;A. Vanderpoorten;A. Vanderpoorten
DOI:
10.15298/arctoa.21.03
发表时间:
2012
期刊:
Arctoa, a jornal of bryology
影响因子:
--
作者:
S. Polevova
通讯作者:
S. Polevova