Interspecific differentiation and hybridization in vanilla species (Orchidaceae)
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Interspecific differentiation and hybridization in vanilla species (Orchidaceae). / Nielsen, Lene Rostgaard; Siegismund.
I: Heredity, Bind 83, 1999, s. 560-7.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Interspecific differentiation and hybridization in vanilla species (Orchidaceae)
AU - Nielsen, Lene Rostgaard
AU - Siegismund, null
N1 - Keywords: differentiation, hybridization, population structure, Vanilla
PY - 1999
Y1 - 1999
N2 - Vanilla claviculata, V. barbellata and V. dilloniana are distributed throughout the Caribbean islands and are all found in Puerto Rico. The vegetative parts of the species are similar; however, their conspicuous flowers easily distinguish them. Electrophoresis of seven polymorphic enzymes revealed that the genetic composition of the three species is also very similar: they deviate mainly from each other in allele frequencies rather than by specific alleles. A hierarchical analysis of genetic differentiation showed that the between-species component is slightly higher (FSG=0.237) than the component between populations within species (FPS=0.141). Nevertheless, they are efficiently recognized by their genotypic compositions. In V. barbellata and V. claviculata 97-99% of all individuals were assigned to the correct species. Assignment to a wrong species occurred only with individuals at localities where species coexist. This suggests that the species may hybridize.
AB - Vanilla claviculata, V. barbellata and V. dilloniana are distributed throughout the Caribbean islands and are all found in Puerto Rico. The vegetative parts of the species are similar; however, their conspicuous flowers easily distinguish them. Electrophoresis of seven polymorphic enzymes revealed that the genetic composition of the three species is also very similar: they deviate mainly from each other in allele frequencies rather than by specific alleles. A hierarchical analysis of genetic differentiation showed that the between-species component is slightly higher (FSG=0.237) than the component between populations within species (FPS=0.141). Nevertheless, they are efficiently recognized by their genotypic compositions. In V. barbellata and V. claviculata 97-99% of all individuals were assigned to the correct species. Assignment to a wrong species occurred only with individuals at localities where species coexist. This suggests that the species may hybridize.
U2 - 10.1038/sj.hdy.6885880
DO - 10.1038/sj.hdy.6885880
M3 - Journal article
C2 - 10620028
VL - 83
SP - 560
EP - 567
JO - Heredity
JF - Heredity
SN - 0018-067X
ER -
ID: 9225730