Results 31 to 40 of about 3,902 (197)
The vegetative and reproductive growth of plants provide the basic tempo for an ecosystem, and when species are interdependent, phenology becomes crucial to regulating the quantity and quality of the interactions. In plant–insect interactions, the plants
Wen-Hsuan Chen +4 more
doaj +1 more source
Nowadays, wild grapevine populations are quite limited and sporadic mainly due to habitat destruction, land-use change, and the spread of pathogens that have reduced their distribution range.
Eleonora Clò +9 more
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Polyploidization may precipitate dramatic changes to the genome, including chromosome rearrangements, gene loss, and changes in gene expression. In dioecious plants, the sex-determining mechanism may also be disrupted by polyploidization, with the ...
Melissa A. Toups +2 more
semanticscholar +1 more source
Solanum section Leptostemonum is an ideal lineage to test the theoretical framework regarding proposed evolutionary benefits of outcrossing sexual systems in comparison to cosexuality.
Jason T. Cantley +5 more
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Most angiosperms bear hermaphroditic flowers, but a few species have evolved outcrossing strategies, such as dioecy, the presence of separate male and female individuals. We previously investigated the mechanisms underlying dioecy in diploid persimmon (D.
Takashi Akagi +6 more
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Revision of Tinospora (Menispermaceae - Chasmantheroideae - Burasaieae) in Singapore
The lianescent genus Tinospora Miers in Singapore is revised. Four species are recognised, two of which are newly described. Tinospora krispura I.M.Turner sp. nov. is known from Christmas Island and Singapore. Tinospora singapura I.M.Turner sp. nov.
I.M. Turner
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we conducted anatomical analysis of anthers with the aim to establish the differences in the development pattern of microsporophytes and microgametophytes between perfect and imperfect flowers in the tribe Gardenieae (Rubiaceae). The species studied were:
M. D. Judkevich +2 more
semanticscholar +1 more source
Molecular and genetic mechanisms conferring dissolution of dioecy in Diospyros oleifera Cheng
Dioecy, a sexual system of single-sex (gynoecious/androecious) individuals, is rare in flowering plants. This rarity may be a result of the frequent transition from dioecy into systems with co-sex individuals.
Peng Sun +14 more
semanticscholar +1 more source
Pollen and anther development malfunction in distylous flowers of Palicourea padifolia (Rubiaceae)
Background: Heterostyly is a genetic polymorphism in which flowers differ between individual plants of a species in heights at which stamens and style are reciprocally positioned.
Juan Francisco Ornelas +2 more
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We present a preliminary discussion about cauliflory, sexual dimorphism and biogeographic patterns in Drypetes Vahl (Putranjivaceae Endl.), focused on Africa.
Alejandro Quintanar +3 more
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