Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Jenny K. Archibald"'
Publikováno v:
Molecular Phylogenetics and Evolution. 112:194-208
The genus Zaluzianskya (Scrophulariaceae s.s.) encompasses a diversity of floral and ecological traits. However, this diversity, as described by the current taxonomic circumscription of Zaluzianskya, is an underestimate. We present molecular data sug
Autor:
Jenny K. Archibald, Daniel J. Crawford
Publikováno v:
Journal of Systematics and Evolution. 55:1-15
Oceanic islands have long been called natural laboratories for studying evolution because they are geologically young, isolated, dynamic areas with diverse habitats over small spatial scales. Volcanic substrates of different ages permit the study of
Autor:
Fabiola Soto-Trejo, John K. Kelly, Daniel J. Crawford, Mark E. Mort, Jenny K. Archibald, Arnoldo Santos-Guerra
Publikováno v:
International Journal of Plant Sciences. 174:171-178
Members of the genus Tolpis (Asteraceae) endemic to the Canary Islands comprise a monophyletic group with the dispersal of one species to the Cape Verde Islands. Most species are self-incompatible or pseudo-self-compatible perennials. However, one sp
Publikováno v:
Vieraea Folia scientiarum biologicarum canariensium. 41:169-175
A distinctive new species, Tolpis santosii, is described from the Canary Islands. The new species is known from several collections in a humid zone near the coast of north-northeastern La Palma. In addition to morphological characters such as stout s
Publikováno v:
Plant Species Biology. 25:114-119
The genus Tolpis is largely restricted to the Canary Islands, where all of the endemic species except one are self-incompatible perennials (as indicated by levels of selfed seed set). A recent study suggested that self-incompatibility is leaky in som
Publikováno v:
TAXON. 59:581-587
Two combinations (designated as options 1 and 2) of four plastid markers (matK, rpoC1, rpoB, psbA-trnH) that have been recommended for DNA barcoding were tested for utility in a putatively recently-diversified group: the primarily Canarian clade with
Publikováno v:
Plant Systematics and Evolution. 279:103-113
Pollen fertility was determined for synthetic F1 hybrids between members of the genus Tolpis endemic to the Canary Islands. Mean fertility varies from 1 to nearly 100%. High hybrid sterility is unusual for island lineages. Surprisingly, the fertility
Autor:
Daniel J. Crawford, Danielle Stoermer, John K. Kelly, Jenny K. Archibald, Mark E. Mort, Arnoldo Santos-Guerra
Publikováno v:
International Journal of Plant Sciences. 169:782-791
Baker’s law posits that self‐compatible (SC) plants will be more successful than self‐incompatible (SI) plants in long‐distance colonization because a single propagule can establish a viable population. Oceanic islands represent ideal systems
Publikováno v:
TAXON. 55:747-756
Hypervariable, dominant molecular markers have become more common as characters for reconstructing evolutionary relationships, largely due to the difficulty in locating useful variation in DNA sequences in some very recently radiated taxa. Several of
Publikováno v:
American Journal of Botany. 93:656-664
Plants endemic to oceanic islands represent some of the most unusual and rare taxa in the world. Enzyme electrophoresis was used to assess genetic diversity within and divergence among all endemic species of a small genus of plants on the Canary Isla