Results 11 to 20 of about 352 (126)
Genetic Diversity of Androdioecious Osmanthus fragrans (Oleaceae) Cultivars Using Microsatellite Markers [PDF]
Applications in Plant Sciences, 2013 Premise of the study: For cultivar classification, identification, and genetic improvement, microsatellite markers were developed to analyze the genetic diversity of androdioecious Osmanthus fragrans cultivars.
Yifan Duan +6 more
doaj +3 more sources
Reversibility of sex changes in the plant kingdom: more important than we thought? [PDF]
Biol Rev Camb Philos SocABSTRACT Compared to animals, plants show a wide range of reproductive strategies with different degrees of sex separation (e.g. dioecy, monoecy, hermaphroditism). While sex expression was previously thought to be genetically determined and fixed in plants, accumulating evidence suggests that sex expression can change reversibly even within one ...
Sammarco I +3 more
europepmc +2 more sources
Widespread male sterility and trioecy in androdioecious Mercurialis annua: Its distribution, genetic basis, and estimates of morph-specific fitness components. [PDF]
Am J BotAbstract Premise Angiosperms range in sexual system from hermaphroditism through gynodioecy and androdioecy to dioecy. Trioecy, where females and males coexist with hermaphrodites, is rare. Recently, trioecy was documented in hexaploid populations of the wind‐pollinated herb Mercurialis annua in Spain.
Nguyen MT, Martignier T, Pannell JR.
europepmc +2 more sources
Did doubly uniparental inheritance (DUI) of mtDNA originate as a cytoplasmic male sterility (CMS) system? [PDF]
Bioessays, 2022 Cytoplasmic male sterility (CMS) refers to disruption of viable pollen production in plants as the result of mitonuclear interactions. CMS is rare outside plants. We hypothesize that the system of doubly uniparental inheritance (DUI) of mitochondria in bivalves originated as a CMS system and propose different ways to test our hypothesis.
Breton S +5 more
europepmc +2 more sources
Dioecy in a wind-pollinated herb explained by disruptive selection on sex allocation via inbreeding avoidance. [PDF]
New PhytolSummary The evolution of dioecy from hermaphroditism is widely thought to be a response to disruptive selection favoring males and females, driven by advantages of inbreeding avoidance, sexual specialization, or both. It has hitherto been difficult to uncouple the importance of these two hypotheses.
Chen KH, Pannell JR.
europepmc +2 more sources
Digest: Evolution and maintenance of androdioecy in a haplodiploid insect* [PDF]
Evolution, 2021 The coexistence of hermaphrodites and males (androdioecy) is rare in both plants and animals and has hitherto remained unknown in insects. Mongue et al. report a new case of androdioecy in the invasive haplodiploid insect Icerya purchasi, in which hermaphrodites can only self-fertilize, but occasionally mate with males. Revealingly, I.
Molinier, Cécile +2 more
openaire +3 more sources
Stoichiometry patterns in the androdioecious Acer tegmentosum [PDF]
Scientific Reports, 2016 AbstractThis study evaluates stoichiometry patterns in the androdioecious Acer tegmentosum, a species characterized by a rare reproductive system where males and hermaphrodites coexist. Altogether 31 hermaphrodites and 29 male plants were harvested and samples of leaves, current-year shoots, branches and coarse roots were analyzed to explore gender ...
Zhang, Xinna +7 more
openaire +4 more sources
Repeated evolution of dioecy from androdioecy in Acer [PDF]
New Phytologist, 2004 The evolution of breeding systems was studied in the genus Acer, with special attention to the origin of androdioecy and dioecy, using a phylogenetic approach. Parsimony and maximum-likelihood techniques were used to infer the ancestral character state and trends in the evolution of breeding systems.
Gleiser, G., Verdú, Miguel
openaire +3 more sources
Ancient androdioecy in the freshwater crustaceanEulimnadia [PDF]
Proceedings of the Royal Society B: Biological Sciences, 2005 Among the variety of reproductive mechanisms exhibited by living systems, one permutation—androdioecy (mixtures of males and hermaphrodites)—is distinguished by its rarity. Models of mating system evolution predict that androdioecy should be a brief stage between hermaphroditism and dioecy (separate males and females), or vice versa.
Stephen C, Weeks +8 more
openaire +2 more sources
Sexual systems in the New Zealand angiosperm flora
New Zealand Journal of Botany, Volume 61, Issue 4, Page 201-231, December 2023., 2023 ABSTRACT We present data on sexual systems and associated traits in the New Zealand angiosperm flora and discuss reasons for the anomalously high levels of gender dimorphism in the flora, and the low levels of monoecy in woody species. Along with Hawai'i and New Caledonia, New Zealand has exceptionally high levels of gender dimorphism (19.5% of ...
Matt S. McGlone, Sarah J. Richardson
wiley +1 more source