Results 31 to 40 of about 4,773,873 (317)
Self-pollination by sliding pollen in Caulokaempferia coenobialis (Zingiberaceae) [PDF]
Caulokaempferia coenobialis (Zingiberaceae) forms dense populations on steep cliffs in shady, humid monsoon forests in south China. It produces few consecutively opening bright yellow flowers that are 3 cm long and oriented parallel to the ground.
Chen, Zhongyi +3 more
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Climate change creates challenges for wild species, but plants have survived and adapted to similar changes in their evolutionary past. Most plants were originally outcrossing, one theoretical genetic reason being that self-fertilization does not create ...
Maarten van Ginkel +1 more
doaj +1 more source
Differential expression of conserved germ line markers and delayed segregation of male and female primordial germ cells in a hermaphrodite, the leech helobdella. [PDF]
In sexually reproducing animals, primordial germ cells (PGCs) are often set aside early in embryogenesis, a strategy that minimizes the risk of genomic damage associated with replication and mitosis during the cell cycle.
Cho, Sung-Jin +2 more
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Cannabis sativa L. (hemp, marijuana) produces male and female inflorescences on different plants (dioecious) and therefore the plants are obligatory out-crossers.
Zamir K. Punja, Janesse E. Holmes
doaj +1 more source
The effect of sheltered load on reproduction in Solanum carolinense, a species with variable self-incompatibility [PDF]
In previous studies, we have investigated the strength of self-incompatibility (SI) in Solanum carolinense, a highly successful weed with a fully functional SI system that inhabits early successional and other disturbed habitats.
Keser, L.H. +2 more
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Création et étude de lignées chez le Pinot noir (Vitis vinifera L.)
L'objectif est l'obtention de génotypes de type « lignée », capables de transmettre à une descendance sexuée les caractères les plus utiles tels que la couleur de la baie dans le cas d'une variété de cuve comme le Pinot noir.
A. Bronner, J. Oliveira
doaj +1 more source
BackgroundThe population of infertile couples receiving in vitro fertilization and embryo transfer in China is increasing gradually. The association of self-esteem and dyadic coping of infertile couples undergoing in vitro fertilization and embryo ...
Lihong Zhang +7 more
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Model of phenotypic evolution in hermaphroditic populations [PDF]
We consider an individual based model of phenotypic evolution in hermaphroditic populations which includes random and assortative mating of individuals.
Rudnicki, Ryszard, Zwoleński, Paweł
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Sex morphs and invasiveness of a fleshy-fruited tree in natural grasslands from Argentina [PDF]
Invasiveness has usually been studied as a species-level attribute; nevertheless, phenotypic differences between individuals in a population can lead to significant variations in colonization ability.
Amodeo, Martín Raúl +1 more
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Experimental confirmation of protandric simultaneous hermaphroditism in a Caridean shrimp outside of the genus Lysmata [PDF]
Caridean shrimps display a variety of sexual systems including gonochorism and various forms of protandry but rarely simultaneous hermaphroditism. Protandric simultaneous hermaphroditism (PSH) has thus far only been demonstrated in the genus Lysmata. The
Laubenheimer, Helio, Rhyne, Andrew L.
core +2 more sources

