Sex determination and the evolution of dioecy from monoecy in Sagittaria latifolia (Alismataceae)
نویسندگان
چکیده
منابع مشابه
Sex determination and the evolution of dioecy from monoecy in Sagittaria latifolia (Alismataceae).
The role of mutations of small versus large effect in adaptive evolution is of considerable interest to evolutionary biologists. The major evolutionary pathways for the origin of dioecy in plants (the gynodioecy and monoecy-paradioecy pathways) are often distinguished by the number of mutations involved and the magnitude of their effects. Here, we investigate the genetic and environmental deter...
متن کاملThe evolution and maintenance of monoecy and dioecy in Sagittaria latifolia (Alismataceae).
Plant species rarely exhibit both monoecious and dioecious sexual systems. This limits opportunities to investigate the consequences of combined versus separate sex function on mating patterns and genetic variation and the analysis of factors responsible for the evolution and maintenance of the two sexual systems. Populations of the North American clonal aquatic Sagittaria latifolia are usually...
متن کاملLife-history differentiation and the maintenance of monoecy and dioecy in Sagittaria latifolia (Alismataceae).
The existence of monoecious and dioecious populations within plant species is rare. This limits opportunities to investigate the ecological mechanisms responsible for the evolution and maintenance of these contrasting sexual systems. In Sagittaria latifolia, an aquatic flowering plant, monoecious and dioecious populations exist in close geographic proximity but occupy distinct wetland habitats ...
متن کاملRepeated evolution of dioecy from monoecy in Siparunaceae (Laurales).
Siparunaceae comprise Glossocalyx with one species in West Africa and Siparuna with 65 species in the neotropics; all have unisexual flowers, and 15 species are monoecious, 50 dioecious. Parsimony and maximum likelihood analyses of combined nuclear ribosomal ITS and chloroplast trnL-trnF intergenic spacer sequences yielded almost identical topologies, which were used to trace the evolution of t...
متن کاملIsolation and characterization of 11 microsatellite markers from Sagittaria latifolia (Alismataceae).
We developed 11 microsatellite loci for Sagittaria latifolia, an aquatic plant common to wetlands of North America. From an (AG)-enriched library, we identified 66 unique microsatellite sequences for which primers could be designed. Twenty-two loci reliably amplified a clear single band of expected size, and 11 loci were scoreable and polymorphic. For these 11 loci, we genotyped a monoecious an...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society of London. Series B: Biological Sciences
سال: 2004
ISSN: 0962-8452,1471-2954
DOI: 10.1098/rspb.2003.2580