Reciprocal hybrid formation of Spartina in San Francisco Bay

@article{Anttila2000ReciprocalHF,
  title={Reciprocal hybrid formation of Spartina in San Francisco Bay},
  author={C K Anttila and Robert Andrew King and Colin Ferris and Debra R. Ayres and Donald R. Strong},
  journal={Molecular Ecology},
  year={2000},
  volume={9}
}
Diversity in the tRNALEU1 intron of the chloroplast genome of Spartina was used to study hybridization of native California cordgrass, Spartina foliosa, with S. alterniflora, introduced to San Francisco Bay ≈ 25 years ago. We sequenced 544 bases of the tRNALEU1 intron and found three polymorphic sites, a pyrimidine transition at site 126 and transversions at sites 382 and 430. Spartina from outside of San Francisco Bay, where hybridization between these species is impossible, gave cpDNA… Expand
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References

SHOWING 1-10 OF 24 REFERENCES
Extent and degree of hybridization between exotic (Spartina alterniflora) and native (S. foliosa) cordgrass (Poaceae) in California, USA determined by random amplified polymorphic DNA (RAPDs)
TLDR
The spread of S. alterniflora and S. foliosa × altern iflora hybrids in California was determined and the degree of hybridization examined and the proliferation of cordgrass hybrids could grossly alter the character of the San Francisco Bay was examined. Expand
The evolution of Spartina anglica C.E. Hubbard (Gramineae): origin and genetic variability
An extensive survey of isozyme phenotypes in British populations of the amphidiploid salt marsh grass Spartina anglica and its putative parents has confirmed that the species arose by chromosomeExpand
Hybridization between introduced smooth cordgrass (Spartina alterniflora; Poaceae) and native California cordgrass (S. foliosa) in San Francisco Bay, California, USA.
Introduced Spartina alterniflora (smooth cordgrass) is rapidly invading intertidal mudflats in San Francisco Bay, California. At several sites, S. alterniflora co-occurs with native S. foliosaExpand
The evolution of Spartina anglica C. E. Hubbard (Gramineae): genetic variation and status of the parental species in Britain
TLDR
A survey of the genetic variation in the parental species of S. anglica using isozyme electrophoresis shows that S. alterniflora has no detectable variation and S. maritima has extremely low levels of variation, which prevents the question of a single or multiple origin from being answered. Expand
Molecular evidence for the maternal parentage in the hybrid origin of Spartina anglica C.E. Hubbard
TLDR
The DNA sequence of the chloroplast leucine tRNA gene intron was used to show that the introduced North American S. alterniflora is the female parent of the F1 hybrid S. x townsendii and the amphiploid S. anglica. Expand
Evolution of a new ecotype of Spartina alterniflora (Poaceae) in San Francisco Bay, California, USA.
TLDR
The absence of S. patens from most of San Francisco Bay has allowed the dwarf ecotype of smooth cordgrass to survive and spread, and it is suggested that the ecological range of the dwarf smooth Cordgrass ecotype is similar to that of S . Expand
Chloroplast DNA phylogeography of Alnus glutinosa (L.) Gaertn.
TLDR
A survey of chloroplast DNA diversity in populations of black alder revealed a high degree of structuring of 13 cpDNA haplotypes on a European scale which indicated that most of northern and central Europe was colonized from a refuge in the Carpathian Mountains. Expand
On Hybrid Formation in the Rock Fern Asplenium x alternifolium (Aspleniaceae, Pteridophyta)
TLDR
The results demonstrate that one parent, A. septentrionale s.l., acts predominantly as the female parent in these hybrids, with only one population of A. x alternifolium showing reciprocal hybridity. Expand
Greater male fitness of a rare invader (Spartina alterniflora, Poaceae) threatens a common native (Spartina foliosa) with hybridization.
TLDR
To the extent that intertidal range of the hybrids is more similar to the invader than to the native parent, introgression will lead to habitat loss for shore birds and marine life as well to genetic pollution of native California cordgrass. Expand
Native oak chloroplasts reveal an ancient divide across Europe
TLDR
Surprisingly, in one of these regions which has remained invariant for all photosynthetic organisms so far studied, the authors have found intraspecific site polymorphism in two European oaks, indicating hybridisation and introgression between them. Expand
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