Results 61 to 70 of about 880 (113)

Sex chromosomes in willows [PDF]

open access: yes, 2016
Sexual reproduction is found in most eukaryotes and has in the majority of animal species led to the evolution of separate sexes. In contrast, only 5-6% of all angiospersms are dioecious with female and male flowers on separate individuals. Interestingly,
Pucholt, Pascal
core  

Sirdavidia, an extroardinary new genus of Annonaceae from Gabon [PDF]

open access: yes, 2015
A distinctive new monotypic genus from Gabon is described in the tropical plant family Annonaceae: Sirdavidia, in honor to Sir David Attenborough. Molecular phylogenetic analyses confirm that Sirdavidia, which is very distinct from a morphological ...
Couvreur, Thomas   +3 more
core  

Differential costs of reproduction in females and hermaphrodites in a gynodioecious plant [PDF]

open access: yes, 2017
Background and Aims Plants exhibit a variety of reproductive systems where unisexual (females or males) morphs coexist with hermaphrodites. The maintenance of dimorphic and polymorphic reproductive systems may be problematic. For example, to coexist with
Mutikainen, Pia, Toivonen, Eija
core  

Gender variation of Dryas octopetala along snowmelt and latitudinal gradients in the Subarctic and the High Arctic [PDF]

open access: yes, 1999
We describe variations of floral traits of Dryas octopetala L. along a snowmelt gradient within and among three sites : 1) the Subarctic Latnjajaure in northernmost Sweden, 2) the High Arctic Longyearbyen and 3) Ny-Alesund, Svalbard in Norway, also High ...
Kojima,Satoru, Kudo,Gaku, Wada,Naoya
core   +1 more source

Genome Size Changes by Duplication, Divergence, and Insertion in Caenorhabditis Worms. [PDF]

open access: yesMol Biol Evol, 2023
Adams PE   +5 more
europepmc   +1 more source

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