Results 21 to 30 of about 575 (159)

The Dynamics of Flower Development in Castanea sativa Mill.

open access: yesPlants, 2021
The sweet chestnut tree (Castanea sativa Mill.) is one of the most significant Mediterranean tree species, being an important natural resource for the wood and fruit industries.
Ana Teresa Alhinho   +7 more
doaj   +1 more source

Yam (Dioscorea rotundata Poir.) Displays Prezygotic and Postzygotic Barriers to Prevent Autogamy in Monoecious Cultivars

open access: yesAgronomy, 2022
Cultivated yam (D. rotundata) is a staple tuber crop in West Africa whose sexual reproduction control remains largely unknown despite its importance for plant breeding programs. In this paper, we compared self-pollination, intracultivar cross-pollination
Narcisse Denadi   +6 more
doaj   +1 more source

The Diversity and Dynamics of Sex Determination in Dioecious Plants

open access: yesFrontiers in Plant Science, 2021
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
doaj   +1 more source

The Ethylene Biosynthesis Gene CpACO1A: A New Player in the Regulation of Sex Determination and Female Flower Development in Cucurbita pepo

open access: yesFrontiers in Plant Science, 2022
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
doaj   +1 more source

Reproductive biology of two Lagenaria (Curcubitaceae) species

open access: yesBotanica, 2022
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
doaj   +1 more source

Macroevolutionary patterns in the Aphidini aphids (Hemiptera: Aphididae): diversification, host association, and biogeographic origins. [PDF]

open access: yesPLoS ONE, 2011
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
doaj   +1 more source

Male reproductive success is not strongly affected by phenological changes in mate availability in monoecious Sagittaria latifolia

open access: yesRoyal Society Open Science, 2023
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
doaj   +1 more source

Sex expression in Serbian dendroflora: A case study of Fraxinus ornus var. angustifolia [PDF]

open access: yesArchives of Biological Sciences, 2012
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
doaj   +1 more source

Default Sex and Single Gene Sex Determination in Dioecious Plants

open access: yesFrontiers in Plant Science, 2020
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
doaj   +1 more source

Sex Determination in Monoecious and Dioecious Plants [PDF]

open access: yesThe Plant Cell, 1989
Angiosperm species that produce unisexual flowers pres? ent the opportunity for separate analysis of the male and female programs for floral differentiation and gametogenesis. A vast literature describes the genetic and physio? logical basis of sex determination in these species. (For reviews, see Westergaard, 1958; Grant, 1975; Frankel and Galun, 1977;
E. E., Irish, T., Nelson
openaire   +2 more sources

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