Abstract：
:We explore the phylogeny of the polygrammoid ferns using nucleotide sequences derived from three plastid loci for each of 98 selected species. Our analyses recovered four major monophyletic lineages: the loxogrammoids, two clades consisting of taxa restricted to the Old World, and a largely neotropical clade that also includes the pantropical Grammitidaceae. The loxogrammoid lineage diverges first and is sister to a large clade comprising the three remaining species-rich lineages. One paleotropical clade includes the drynarioid and selligueoid ferns, whereas the second paleotropical clade includes the platycerioids, lepisoroids, microsoroids, and their relatives. The grammitids nest within the neotropical clade, although the sister taxon of this circum-tropic, epiphytic group remains ambiguous. Microsorum and Polypodium, as traditionally defined, were recovered as polyphyletic. The relatively short branch lengths of the deepest clades contrast with the long branch lengths leading to the terminal groups. This suggests that the polygrammoid ferns arose through an old, rapid radiation. Our analysis also reveals that the rate of substitution in the grammitids is remarkably higher relative to other polygrammoids. Disparities in substitution rate may be correlated with one or more features characterizing grammitids, including species richness, chlorophyllous spores, and an extended gametophytic phase.
journal_name
Mol Phylogenet Evoljournal_title
Molecular phylogenetics and evolutionauthors
Schneider H,Smith AR,Cranfill R,Hildebrand TJ,Haufler CH,Ranker TAdoi
10.1016/j.ympev.2003.09.018keywords:
subject
Has Abstractpub_date
2004-06-01 00:00:00pages
1041-63issue
3eissn
1055-7903issn
1095-9513pii
S1055790303003816journal_volume
31pub_type
杂志文章abstract：:Mitochondrial DNA (mtDNA) sequence data are widely used to delimit species. However, owing to its strict maternal inheritance in most species, mtDNA tracks female dispersion and dispersal only. The accuracy of mtDNA-derived species delimitation is often not explicitly tested using other independent evidence, such as n...
journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
doi：10.1016/j.ympev.2015.06.010
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
doi：10.1006/mpev.2000.0904
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journal_title：Molecular phylogenetics and evolution
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
doi：10.1006/mpev.1997.0426
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pub_type： 杂志文章
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
doi：10.1016/j.ympev.2005.09.004
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
doi：10.1006/mpev.2000.0841
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
doi：10.1016/j.ympev.2015.05.028
更新日期：2015-11-01 00:00:00
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
doi：10.1006/mpev.2001.1068
更新日期：2002-03-01 00:00:00
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
doi：10.1016/j.ympev.2012.05.036
更新日期：2012-10-01 00:00:00
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
doi：10.1016/s1055-7903(02)00258-0
更新日期：2002-11-01 00:00:00
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journal_title：Molecular phylogenetics and evolution
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
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journal_title：Molecular phylogenetics and evolution
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
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更新日期：2010-02-01 00:00:00
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
doi：10.1006/mpev.1994.1013
更新日期：1994-06-01 00:00:00
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
doi：10.1006/mpev.2001.0959
更新日期：2001-09-01 00:00:00
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pub_type： 杂志文章
doi：10.1006/mpev.1996.0084
更新日期：1996-12-01 00:00:00
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journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
doi：10.1016/j.ympev.2007.12.026
更新日期：2008-05-01 00:00:00
abstract：:Lycosids are a diverse family of spiders distributed worldwide. Previous studies recovered some of the deeper splits of the family, but with little support. We present a broad phylogenetic analysis of the Lycosidae including a wide geographic sampling of representatives and all the subfamilies described to date. Addit...
journal_title：Molecular phylogenetics and evolution
pub_type： 杂志文章
doi：10.1016/j.ympev.2019.04.004
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