Evidence of Outcrossing in Trillium erectum and Trillium grandiflorum (Liliaceae)
نویسندگان
چکیده
منابع مشابه
Population Demography and Herbivory of Trillium Grandiflorum
Numerous pedicellate and sessile Trillium species are endemic to eastern North America, where white-tailed deer (Odocoileus virginianus) populations have been growing in recent decades. Deer feed on Trillium plants, and because they often consume all leaves and flowers, the photosynthetic capacity of browsed plants is greatly diminished. To determine if deer can influence Trillium population dy...
متن کاملSynthesis of Messenger-like Ribonucleic Acid and Protein during Meiosis in Isolated Cells of Trillium Erectum
The synthesis of RNA and protein by cultures of isolated microsporocytes has been demonstrated. The variation in capacities of such cultures to perform syntheses is a function of meiotic stage and parallels the pattern of changes observed for microsporocytes in situ. A principal feature of this pattern is the induction of syntheses during pachytene and diplotene, stages at which the chromosomes...
متن کاملA reevaluation of the use of rhizome scars to age plants of Trillium erectum (Melanthiaceae)1.
UNLABELLED PREMISE OF STUDY Herbaceous perennials are important long-lived plants in North American forests. Trillium has been used as a model organism to examine the effects of ecological processes on age structure in herbaceous forest perennials. Here, the methods of aging Trillium rhizomes are critically examined. • METHODS Rhizomes of seedlings, single-bract plants, three-bract nonflow...
متن کاملSpatial population genetic structure in Trillium grandiflorum: the roles of dispersal, mating, history, and selection.
The roles of the various potential ecological and evolutionary causes of spatial population genetic structure (SPGS) cannot in general be inferred from the extant structure alone. However, a stage-specific analysis can provide clues as to the causes of SPGS. We conducted a stage-specific SPGS analysis of a mapped population of about 2000 Trillium grandiflorum (Liliaceae), a long-lived perennial...
متن کاملLand-use history and plant performance in populations of Trillium grandiflorum
Many forest herbs show reduced frequency in forests growing on former agricultural land (secondary forests) relative to forests that were never cleared for agriculture (primary forests). To explain this pattern, studies of secondary forest colonization by forest herbs have stressed the role of limited seed dispersal, though environmental conditions may also limit colonization. Here I demonstrat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Heredity
سال: 1997
ISSN: 1465-7333,0022-1503
DOI: 10.1093/oxfordjournals.jhered.a023110