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Allo-triploid Sphagnum xfalcatulum: single individuals contain most of the Holantarctic diversity for ancestrally indicative markers

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TypeOfResource
Text
TitleInfo
Title
Allo-triploid Sphagnum <sup>x</sup>falcatulum: single individuals contain most of the Holantarctic diversity for ancestrally indicative markers
Name (type = personal)
NamePart (type = family)
Karlin
NamePart (type = given)
Erik F.
Affiliation
Ramapo College
Role
RoleTerm (authority = marcrt); (type = text)
author
Name (type = personal)
NamePart (type = family)
Smouse
NamePart (type = given)
Peter E.
Affiliation
Ecology, Evolution and Natural Resources, Rutgers University
Role
RoleTerm (authority = marcrt); (type = text)
author
Name (authority = RutgersOrg-Department); (type = corporate)
NamePart
Ecology, Evolution and Natural Resources
Name (authority = RutgersOrg-School); (type = corporate)
NamePart
School of Environmental and Biological Sciences (SEBS)
Genre (authority = RULIB-FS)
Article, Refereed
Genre (authority = NISO JAV)
Accepted Manuscript (AM)
OriginInfo
DateCreated (encoding = w3cdtf); (qualifier = exact)
2016
DateIssued (encoding = w3cdtf); (keyDate = yes); (qualifier = exact)
2017
Abstract (type = Abstract)
Background and Aims. Allopolyploids exhibit both different levels and patterns of genetic variation than are typical of diploids. However, scant attention has been given to the partitioning of allelic information and diversity in allopolyploids, particularly that among homeologous monoploid components of the hologenome. Sphagnum ×falcatulum is a double allopolyploid peat moss that spans a considerable portion of the Holantarctic. With monoploid genomes from three ancestral species, this organism exhibits a complex evolutionary history involving serial inter-subgeneric allopolyploidizations.

Methods. Studying populations from three disjunct regions (South Island [New Zealand]; Tierra de Fuego archipelago [Chile, Argentia]; Tasmania [Australia]) we examine genetic information for five highly stable microsatellite markers that differ among the three (ancestral) monoploid genomes. We partition the holoploid information into separate components for individuals within and among single sites and regions, as well as within and among the three monoploid genomes, and then convert those information components into corresponding diversity measures.

Key Results. The majority (76%) of alleles detected across these five markers appear to have been captured by hybridization, but the information within each of the three monoploid genomes varied, suggesting a history of recurrent alloploidization between ancestral species containing different levels of genetic diversity. Information within individuals, equivalent to the information among monoploid genomes (for this dataset), was relatively stable, and represented 83% of the grand total information across the Holantarctic, with both inter-regional and inter-population diversification each accounting for about 5% of the total information.

Conclusions. Sphagnum ×falcatulum appears to have inherited the great majority of its genetic diversity at these markers by reticulation, rather than by subsequent evolutionary radiation. However, some post hybridization genetic diversification has become fixed in at least one regional population. Methodology allowing statistical analysis of any ploidy level is presented.
Language
LanguageTerm (authority = ISO 639-3:2007); (type = text)
English
PhysicalDescription
InternetMediaType
application/pdf
Extent
42 p.
Subject (authority = local)
Topic
Allelic information
Subject (authority = local)
Topic
Allelic diversity
Subject (authority = local)
Topic
Allopolyploid
Subject (authority = local)
Topic
Bryophytes
Subject (authority = local)
Topic
Hologenome
Subject (authority = local)
Topic
Populations
Subject (authority = local)
Topic
Reticulation
Subject (authority = local)
Topic
Shannon partitioning
Subject (authority = local)
Topic
Sphagnum
Subject (authority = local)
Topic
Sphagnum ×falcatulum
Extension
DescriptiveEvent
Type
Citation
DateTime (encoding = w3cdtf)
2017
AssociatedObject
Name
Annals of Botany
Type
Journal
Relationship
Has part
Identifier (type = volume and issue)
120(2)
Reference (type = url)
https://dx.doi.org/10.1093/aob/mcw269
Detail
221-231
Extension
DescriptiveEvent
Type
Grant award
AssociatedEntity
Role
Funder
Name
U.S. Department of Agriculture
AssociatedEntity
Role
Originator
Name
Peter Smouse
AssociatedObject
Type
Grant number
Name
NJAES-17160
RelatedItem (type = host)
TitleInfo
Title
Smouse, Peter E.
Identifier (type = local)
rucore30184700001
Location
PhysicalLocation (authority = marcorg); (displayLabel = Rutgers, The State University of New Jersey)
NjNbRU
Identifier (type = doi)
doi:10.7282/T3FX7CRH
Note (type = peerReview)
Peer reviewed.
Genre (authority = ExL-Esploro)
Accepted Manuscript
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Copyright for scholarly resources published in RUcore is retained by the copyright holder. By virtue of its appearance in this open access medium, you are free to use this resource, with proper attribution, in educational and other non-commercial settings. Other uses, such as reproduction or republication, may require the permission of the copyright holder.
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Copyright protected
Availability
Status
Open
Reason
Permission or license
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Type
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Name
Multiple author license v. 1
Detail
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RightsEvent
Type
Embargo
DateTime (encoding = w3cdtf); (keyDate = no); (point = end); (qualifier = exact)
2018-08-01
Detail
Access to this PDF has been restricted at the publisher's request. It will be publicly available after August 01, 2018.
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1.6
DateCreated (point = end); (encoding = w3cdtf); (qualifier = exact)
2016-11-28T09:44:13
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2016-11-28T09:44:13
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