Results 21 to 30 of about 127 (101)

Parthenogenesis and the Evolution of Anisogamy

open access: yesCells, 2021
Recently, it was pointed out that classic models for the evolution of anisogamy do not take into account the possibility of parthenogenetic reproduction, even though sex is facultative in many relevant taxa (e.g., algae) that harbour both anisogamous and
George Constable   +2 more
exaly   +3 more sources

A successful crayfish invader is capable of facultative parthenogenesis: a novel reproductive mode in decapod crustaceans. [PDF]

open access: yesPLoS ONE, 2011
Biological invasions are impacting biota worldwide, and explaining why some taxa tend to become invasive is of major scientific interest. North American crayfish species, particularly of the family Cambaridae, are prominent invaders in freshwaters ...
Miloš Buřič   +4 more
doaj   +3 more sources

Cytotype stability, facultative apomixis and geographical parthenogenesis in Ranunculus kuepferi (Ranunculaceae) [PDF]

open access: yesAnnals of Botany, 2010
Asexual organisms are more widespread in previously glaciated areas than their sexual relatives ('geographical parthenogenesis'). In plants, this pattern is probably dependent on reproductive isolation and stability of cytotypes within their respective distribution areas. Both partial apomixis and introgressive hybridization potentially destabilize the
Elvira Hörandl, Hörandl Elvira
exaly   +3 more sources

The adaptability of facultative parthenogenesis and ‘multiple embryos per eggcase’ as alternative reproductive strategies in Chondrichthyes

open access: yesRoyal Society Open Science
Chondrichthyans (sharks, rays and chimaera) are a fascinating case study through which to examine reproductive biology. While most vertebrate lineages have converged upon either placental viviparity or oviparity, chondrichthyans exhibit unparalleled ...
Joel Harrison Gayford
doaj   +3 more sources

New insights on facultative parthenogenesis in pythons [PDF]

open access: yesBiological Journal of the Linnean Society, 2014
Todd Castoe   +2 more
exaly   +2 more sources

Corrigendum to: Facultative Parthenogenesis in California Condors [PDF]

open access: yesJournal of Heredity, 2021
This is a correction to: Journal of Heredity, Volume 112, Issue 7, October 2021, Pages 569–574, https://doi.org/10.1093/jhered/esab052\ud \ud In the originally published version of this article there were errors within an author’s affiliations. The author names for Conservation Genetics, Beckman Center for Conservation Research should read: “Ryder ...
Ryder, Oliver A.   +11 more
openaire   +2 more sources

Facultative parthenogenesis: a transient state in transitions between sex and obligate asexuality in stick insects?

open access: yesPeer Community Journal, 2023
Transitions from obligate sex to obligate parthenogenesis have occurred repeatedly across the tree of life. Whether these transitions occur abruptly or via a transient phase of facultative parthenogenesis is rarely known.
Larose, Chloé   +4 more
doaj   +1 more source

Facultative parthenogenesis in a critically endangered wild vertebrate [PDF]

open access: yesCurrent Biology, 2015
Facultative parthenogenesis - the ability of sexually reproducing species to sometimes produce offspring asexually - is known from a wide range of ordinarily sexually reproducing vertebrates in captivity, including some birds, reptiles and sharks [1-3].
Fields, Andrew T.   +3 more
openaire   +2 more sources

Venom Complexity in a Pitviper Produced by Facultative Parthenogenesis [PDF]

open access: yesScientific Reports, 2018
AbstractFacultative parthenogenesis (FP) is asexual reproduction in plant and animal species that would otherwise reproduce sexually. This process in vertebrates typically results from automictic development (likely terminal fusion) and is phylogenetically widespread.
J. J. Calvete   +11 more
openaire   +4 more sources

Exceptional long-term sperm storage by a female vertebrate.

open access: yesPLoS ONE, 2021
Females of many vertebrate species have the capacity to store sperm within their reproductive tracts for prolonged periods of time. Termed long-term sperm storage, this phenomenon has many important physiological, ecological, and evolutionary ...
Brenna A Levine   +2 more
doaj   +1 more source

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