Results 1 to 10 of about 20,542 (248)

Repeated evolution of self-compatibility for reproductive assurance [PDF]

open access: yesNature Communications, 2018
Mating-type switching enables self-compatible reproduction in fungi, but switching ability is variable even within species. Here, the authors find de novo evolution of switching genotypes in experimentally evolved fission yeast populations and show a ...
Bart P. S. Nieuwenhuis   +5 more
doaj   +12 more sources

Diplostigmaty in plants: a novel mechanism that provides reproductive assurance [PDF]

open access: yesBiology Letters, 2013
Differentiation of female sexual organs in flowering plants is rare and contrasts with the wide range of male reproductive strategies. An unusual example involves diplostigmaty, the possession of spatially and temporally distinct stigmas inSebaea(Gentianaceae).
Jonathan Kissling, Spencer Barrett
exaly   +6 more sources

Reproductive Assurance Maintains Red-Flowered Plants of Lysimachia arvensis in Mediterranean Populations Despite Inbreeding Depression [PDF]

open access: yesFrontiers in Plant Science, 2020
Flower color polymorphism, an infrequent but phylogenetically widespread condition in plants, is captivating because it can only be maintained under a few selective regimes but also because it can drive intra-morph assortative mating and promote ...
Francisco J. Jiménez-López   +3 more
doaj   +2 more sources

Observations of Simultaneous Sperm Release and Larval Planulation Suggest Reproductive Assurance in the Coral Pocillopora acuta

open access: yesFrontiers in Marine Science, 2019
Despite being an extensively studied group of corals, the reproductive biology of the scleractinian genus Pocillopora remains a mystery. Pocillopora acuta has been proposed to exhibit a mixed reproductive mode, sexually producing gametes (sperm and eggs)
Hillary A. Smith   +6 more
doaj   +3 more sources

Comparison status and factors of pregnancy stress among pregnant women with second child between advanced maternal age and reproductive age: a cross-sectional study [PDF]

open access: yesBMC Pregnancy and Childbirth
Background With the implementation of China’s two-child policy and the rising trend of advanced maternal age, pregnancy stress in women with a second child has become a significant concern.
Lijuan Zhang   +3 more
doaj   +2 more sources

18-Year Monitoring of the Steno-Endemic Verbascum rupicola (Scrophulariaceae): Compounding Pressures and the Extinction Vortex [PDF]

open access: yesPlants
The steno-endemic Verbascum rupicola faces a precarious future due to its extreme habitat specialization on tectonically active hydrothermal quartz veins. This study presents a long-term assessment based on periodic population censuses spanning 18 years (
Volkan Eroğlu
doaj   +2 more sources

Unlocking tropical adaptation: novel flowering time genes implicate JA and ROS signaling in maize [PDF]

open access: yesBMC Plant Biology
Background Tropical maize germplasm offers a valuable resource of genetic diversity for temperate maize breeding programs but its utilization is often constrained by poor flowering adaptation under long-day photoperiods, which act as a major adaptive ...
Jiaguo Zhu   +6 more
doaj   +2 more sources

Phylogenetic Relatedness Determines Heterospecific Pollen–Pistil Compatibility and Reproductive Outcome in the Apocarpous Species Sagittaria trifolia (Alismataceae) [PDF]

open access: yesEcology and Evolution
Pollinator sharing among coflowering plants can reduce plant fitness through heterospecific pollen (HP) deposition. Compatible HP is expected to cause stronger reproductive interference, but the factors determining HP–pistil compatibility and its ...
Si‐Yan Zou   +5 more
doaj   +2 more sources

Assessment of the breeding system in the Algerian narrow coastal endemism Anacyclus linearilobus (Anthemideae, Asteraceae)

open access: yesAnales del Jardín Botánico de Madrid, 2022
The breeding system of Anacyclus linearilobus, an annual and endemic species restricted to dune ecosystems of the Algerian coast were assessed through the effect of self-fertilization and intra- and inter-population artificial crosses on the probability
Adrián Sánchez-Albert   +3 more
doaj   +1 more source

The explosive flowers of Marsypianthes chamaedrys (Lamiaceae) resort to self-pollination and improve reproduction

open access: yesActa Botânica Brasílica, 2022
Explosive pollination includes a rapid release of floral sexual elements that are enclosed in modified petals, and a subsequent contact with pollinators’ body.
Thiago Amorim   +3 more
doaj   +1 more source

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