Results 21 to 30 of about 752 (187)

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

Frontiers 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, Jessica Iglesias-Moya, Jonathan Romero, Cecilia Martínez, Dolores Garrido, Manuel Jamilena   +5 more
doaj   +1 more source

Reproductive biology of two Lagenaria (Curcubitaceae) species

Botanica, 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, Sekinat Okikiola Azeez, Julius Olaoye Faluyi   +2 more
doaj   +1 more source

Evolution of crop phenotypic spaces through domestication. [PDF]

New Phytol
Summary We used domestication as an in vivo replicated experiment to investigate how divergent selection has shaped the evolution of multivariate phenotypic spaces. We measured 11–57 qualitative and quantitative traits in 13 species, either unique or shared between species, and established a framework for cross‐species comparisons. Our results revealed
Wojcik A, Belcram H, Rousselet A, Bouët M, Brault M, Serin P, Desprez A, Rincent R, Peil A, Henry K, Marchal C, Lacombe T, Glémin S, Alix K, Gérard PR, Manicacci D, Vigouroux Y, Dogimont C, Tenaillon MI.   +18 more
europepmc   +2 more sources

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

Royal 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, Samantha Stephens, Marcel Dorken   +2 more
doaj   +1 more source

Manifold limits on seed production by individual flowering plants. [PDF]

Am J Bot
Abstract Premise Historically, angiosperm seed production has been considered to be either pollen or resource limited. However, seed production involves more than pollen and seed resources and typically involves multiple ovules in multiple flowers. Therefore, various constraints may act simultaneously. Methods Proportional components of seed production
Harder LD, Hamnett-Mount NJ.
europepmc   +2 more sources

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

Archives 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, Stefanović Milena, Smiljanić Miroslava, Matić Rada, Kostić M., Vidaković Vera, Bojović S.   +6 more
doaj   +1 more source

Default Sex and Single Gene Sex Determination in Dioecious Plants

Frontiers 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]

The 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

Supplementary Figure S1 from The distribution of sexual function in the flowering plant: from monoecy to dioecy

, 2022
Supplementary Figure S1. Alternative evolutionary scenarios for reproductive transitions. 1A: A scenario for the evolution of monoecy from monocliny via a gynomonoecious mutation; 1B: evolution of monoecy from monocliny via an andromonoecious mutation ...
Quentin Cronk (12205190)
core   +1 more source

Pollination and plant reproduction in the Cerrado, the world's most biodiverse savanna. [PDF]

Biol Rev Camb Philos Soc
ABSTRACT The Brazilian Cerrado is a continental‐wide biodiversity hotspot and the most species‐rich savanna ecosystem in the world. The main aspect characterising this biodiversity is that the landscape is arranged as an intricate mosaic of different plant formations, including grasslands, savannas, and forests, each harbouring distinct but ...
Cardoso JCF, Trevizan R, Maruyama PK, Caetano APS, Gonçalves RV, Antonini Y, Oliveira PE.   +6 more
europepmc   +2 more sources