Results 181 to 190 of about 1,463 (223)
Some of the next articles are maybe not open access.
Behavior of pairs of loci in finite monoecious populations
Theoretical Population Biology, 1974Abstract Transition equations are established for descent measures for pairs of loci in finite randomly mating monoecious populations. The two special cases of equal chance gamete formation and two gametes per parent are considered in detail.
Weir, B. S., Cockerham, C. Clark
openaire +3 more sources
Monoecious Hydrilla verticillata development in complete darkness
Aquatic Botany, 2019Abstract Hydrilla verticillata is one of the most problematic invasive submersed aquatic weeds in the United States. A study was conducted in growth chambers to look at aspects of development of monoecious Hydrilla verticillata in complete darkness. A single tuber was placed in each of forty-eight growth chambers.
Erika J. Haug +2 more
openaire +1 more source
Size and sex allocation in monoecious woody plants
Oecologia, 1993The female size advantage hypothesis predicts that the allocation ratio of female: male reproductive effort should increase with plant size (total reproductive effort). A male height advantage hypothesis has also been proposed, based on the supposed greater advantage of height to male reproductive success in wind-pollinated plants.
openaire +2 more sources
A monoecious and diploid Moran model of random mating
Journal of Theoretical Biology, 2016An exact Markov chain is developed for a Moran model of random mating for monoecious diploid individuals with a given probability of self-fertilization. The model captures the dynamics of genetic variation at a biallelic locus. We compare the model with the corresponding diploid Wright-Fisher (WF) model.
Hössjer, Ola, Tyvand, Peder A.
openaire +3 more sources
A MONOECIOUS ISOLATE OF RHODOCHORTON PURPUREUM1
Journal of Phycology, 1970SUMMARYAlthough most sexually reproducing strains of Rhodochorton purpureum are dioecious, an isolate from Chile is monoecious. The tetrasporophyte of the monoecious strain differentiates directly from the fertilized carpogonium as in the dioecious strains but it differs slightly in its development.
openaire +1 more source
Coalescent theory for a completely random mating monoecious population
Mathematical Biosciences, 2007Consider a large random mating monoecious diploid population that has N individuals in each generation. Let us assume that at time 0 a random sample of n0 as N-->infinity.
openaire +2 more sources
Why do fig wasps actively pollinate monoecious figs?
Oecologia, 2002Active pollination, although rare, has been documented in a few pollination mutualisms. Such behaviour can only evolve if it benefits the pollinator in some way. The wasps that pollinate Ficus inflorescences can be active or passive pollinators. They lay their eggs in fig flowers, so that a proportion of flowers will host a wasp larva instead of a seed.
Jousselin, Emmanuelle +3 more
openaire +4 more sources
Zoospore-derived monoecious gametophytes in Undaria pinnatifida (Phaeophyceae)
Chinese Journal of Oceanology and Limnology, 2013The annual life cycle of the brown seaweed Undaria pinnatifida (Harvey) Suringer comprises a macroscopic diploid sporophyte stage and a microscopic haploid gametophyte stage. In 2011, an unusual zoospore-derived monoecious gametophyte isolate (designated as line 10-5-3) of U. pinnatifida was observed.
Jing Li +4 more
openaire +1 more source
MONOECIOUS MORPHS IN CROTON CALIFORNICUS (EUPHORBIACEAE)
1995(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire +1 more source
GENETIC DIVERSITY IN THE MONOECIOUS HYDROPHILE CERATOPHYLLUM (CERATOPHYLLACEAE)
American Journal of Botany, 1991This study surveys genetic variation in two clonal, monoecious, water‐pollinated species that differ in their extent of sexuality and distributional range. Electrophoresis was used to quantify allozyme variability in 12 Wisconsin populations of the widespread Ceratophyllum demersum and the rare C. echinatum.
openaire +1 more source