Journal ArticleDOI
Isozyme evidence for hybridization betweenPotamogeton natansandP. nodosus(Potamogetonaceae) in Britain
TLDR
A population of pondweeds from the River Stour in Dorset intermediate in morphology between Potamogeton natansL.About:
This article is published in Botanical Journal of the Linnean Society.The article was published on 1995-01-01. It has received 31 citations till now. The article focuses on the topics: Population.read more
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Journal ArticleDOI
Partitioning and diversity of nuclear and organelle markers in native and introduced populations of Epipactis helleborine (Orchidaceae)
J. Squirrell,Peter M. Hollingsworth,Richard M. Bateman,James H. Dickson,Marilyn H. S. Light,Michael MacConaill,Mark C. Tebbitt +6 more
TL;DR: Although field observations suggest that self-pollination occurs frequently, populations had a genetic structure consistent with Hardy-Weinberg expectations and random mating, and there was no evidence for a genetic bottleneck associated with the introduction of E. helleborine to North America.
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Taxonomic complexity and breeding system transitions: conservation genetics of the Epipactis leptochila complex (Orchidaceae).
J. Squirrell,Peter M. Hollingsworth,Richard M. Bateman,Mark C. Tebbitt,Michelle L. Hollingsworth +4 more
TL;DR: Comparisons with published data from the putative progenitor species for the autogamous taxa (the widespread, allogamous E. helleborine) suggest iterative origins of autogamy, rather than the self‐pollinating taxa all being merely mutational variants of a single autogaming lineage.
Journal ArticleDOI
Cryptic species in an endangered pondweed community (Potamogeton, Potamogetonaceae) revealed by AFLP markers.
TL;DR: Morphology, amplified fragment length polymorphisms (AFLPs), and sequences of the internal transcribed spacer region and trnL-F intron and spacer indicate that P. clystocarpus is a genetically distinct lineage compared to P. pusillus and P. foliosus.
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Molecular evidence for a natural primary triple hybrid in plants revealed from direct sequencing.
Zdenek Kaplan,Judith Fehrer +1 more
TL;DR: Even though the triple hybrid is sterile, it possesses an efficient strategy for its existence and became locally successful even in the parental environment, perhaps as a result of heterosis.
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Isozyme evidence for the parentage and multiple origins ofPotamogeton ×suecicus (P. pectinatus ×P. filiformis, Potamogetonaceae)
TL;DR: Evidence from isozyme analyses indicates that Potamogeton ×suecicus is the hybrid between P. pectinatus andP.