Results 21 to 30 of about 1,394 (165)
The Diversity and Dynamics of Sex Determination in Dioecious Plants
The diversity of inflorescences among flowering plants is captivating. Such charm is not only due to the variety of sizes, shapes, colors, and flowers displayed, but also to the range of reproductive systems. For instance, hermaphrodites occur abundantly
Ana Paula Leite Montalvão +3 more
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A methanesulfonate-generated mutant has been identified in Cucurbita pepo that alters sex determination. The mutation converts female into hermaphrodite flowers and disrupts the growth rate and maturation of petals and carpels, delaying female flower ...
Gustavo Cebrián +5 more
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Reproductive biology of two Lagenaria (Curcubitaceae) species
The genus Lagenaria (Cucurbitaceae) members are underutilised, neglected and on the verge of being threatened to extinction. An investigation of their reproductive biology will serve as the basis for effective strategic planning towards their ...
Babatunde Olanrewaju Okunlola +2 more
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Macroevolutionary patterns in the Aphidini aphids (Hemiptera: Aphididae): diversification, host association, and biogeographic origins. [PDF]
Due to its biogeographic origins and rapid diversification, understanding the tribe Aphidini is key to understanding aphid evolution. Major questions about aphid evolution include origins of host alternation as well as age and patterns of diversification
Hyojoong Kim +2 more
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Many plants express their female and male sex roles at different times (dichogamy), with important consequences for mating. Dichogamy can yield mate limitation via biased floral sex ratios, particularly at the beginning and end of the flowering season ...
Allison Kwok +2 more
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Sex expression in Serbian dendroflora: A case study of Fraxinus ornus var. angustifolia [PDF]
Out of a total number of tree species in Serbian flora, 28% are hermaphrodites, 43% are monoecious and 29% are dioecious. The dendroflora appears to have a larger proportion of unisexual than hermaphrodite species.
Popović Zorica +6 more
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Default Sex and Single Gene Sex Determination in Dioecious Plants
A well-established hypothesis for the evolution of dioecy involves two genes linked at a sex-determining region (SDR). Recently there has been increased interest in possible single gene sex determination.
Quentin Cronk, Niels A. Müller
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The Andromonoecious Sex Determination Gene Predates the Separation of Cucumis and Citrullus Genera. [PDF]
Understanding the evolution of sex determination in plants requires the cloning and the characterization of sex determination genes. Monoecy is characterized by the presence of both male and female flowers on the same plant. Andromonoecy is characterized
Adnane Boualem +9 more
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Evolutionary lability of a complex life cycle in the aphid genus
Background Most aphid species complete their life cycle on the same set of host-plant species, but some (heteroecious species) alternate between different hosts, migrating from primary (woody) to secondary (herbaceous) host plants.
Armelle Coeur d'acier +2 more
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Mapping a Partial Andromonoecy Locus in Citrullus lanatus Using BSA-Seq and GWAS Approaches
The sexual expression of watermelon plants is the result of the distribution and occurrence of male, female, bisexual and hermaphrodite flowers on the main and secondary stems. Plants can be monoecious (producing male and female flowers), andromonoecious
Encarnación Aguado +9 more
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