Results 1 to 10 of about 6,616 (180)

Identifying and Engineering Genes for Parthenogenesis in Plants

open access: yesFrontiers in Plant Science, 2019
Parthenogenesis is the spontaneous development of an embryo from an unfertilized egg cell. It naturally occurs in a variety of plant and animal species.
Kitty Vijverberg   +2 more
doaj   +1 more source

Geographic parthenogenesis and plant-enemy interactions in the common dandelion

open access: yesBMC Evolutionary Biology, 2013
Background Many species with sexual and asexual variants show a pattern of geographic parthenogenesis where asexuals have broader and higher-latitude distribution than sexuals.
Verhoeven Koen JF, Biere Arjen
doaj   +1 more source

Parthenogenesis in a captive Asian water dragon (Physignathus cocincinus) identified with novel microsatellites.

open access: yesPLoS ONE, 2019
Reptiles show varying degrees of facultative parthenogenesis. Here we use genetic methods to determine that an isolated, captive female Asian water dragon produced at least nine offspring via parthenogenesis. We identified microsatellites for the species
Kyle L Miller   +8 more
doaj   +1 more source

Variability of Reproduction Pathways in the Central-European Populations of Hawthorns with Emphasis on Triploids

open access: yesPlants, 2022
The role of apomeiosis, parthenogenesis, and pseudogamy in the asexual reproduction of some plant groups has not been fully elucidated in relation to species diversification.
Vladislav Kolarčik   +5 more
doaj   +1 more source

Evidence of parthenogenetic populations from the Paratanytarsus laccophilus species group (Diptera: Chironomidae) in the Alaskan Arctic

open access: yesCHIRONOMUS Journal of Chironomidae Research, 2020
Parthenogenesis, reproduction without fertilization, is not common in the Chironomidae (Diptera), a family of insects with more than 6,000 described species.
Alec R Lackmann   +2 more
doaj   +1 more source

“Jack‐of‐all‐trades” is parthenogenetic

open access: yesEcology and Evolution, 2022
Sex is evolutionarily more costly than parthenogenesis, evolutionary ecologists therefore wonder why sex is much more frequent than parthenogenesis in the majority of animal lineages. Intriguingly, parthenogenetic individuals and species are as common as
Mark Maraun   +8 more
doaj   +1 more source

Opportunities and Challenges in Doubled Haploids and Haploid Inducer-Mediated Genome-Editing Systems in Cucurbits

open access: yesAgronomy, 2020
Doubled haploids have played a major role in cucurbit breeding for the past four decades. In situ parthenogenesis via irradiated pollen is the preferred technique to obtain haploid plantlets whose chromosomes are then doubled in Cucurbitaceae, such as ...
Isidre Hooghvorst, Salvador Nogués
doaj   +1 more source

Parthenogenesis. [PDF]

open access: yesFolklore, 1918
n ...
openaire   +1 more source

First report of recurrent parthenogenesis as an adaptive reproductive strategy in the endangered common smooth-hound shark Mustelus mustelus

open access: yesScientific Reports
Parthenogenesis, or virgin birth, describes a mode of reproduction where an egg develops into an offspring without fertilization, and is observed across various vertebrate taxa, excluding mammals.
Giuseppe Esposito   +14 more
doaj   +1 more source

A key role for sex chromosomes in the regulation of parthenogenesis in the brown alga Ectocarpus.

open access: yesPLoS Genetics, 2019
Although evolutionary transitions from sexual to asexual reproduction are frequent in eukaryotes, the genetic bases of these shifts remain largely elusive.
Laure Mignerot   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy