Results 91 to 100 of about 30,417 (268)

The evolution of selfing, inbreeding depression, and polyploidy in the Claytonia perfoliata complex (Portulacaceae) [PDF]

open access: yes, 2008
Polyploidy, the doubling of chromosomes within a species (autopolyploidy) or chromosome doubling in conjunction with hybridization (allopolyploidy), is accepted as having a major role in plant evolution.
Rausch, Joseph
core   +1 more source

Potential benefits of male diploidy and female triploidy for parasitoid wasps used as biological control agents: A case study in Nasonia

open access: yesBiological Control
Parasitoid wasps are haplodiploid insects, but polyploidy (diploid males, triploid females) occurs for many species. In biological control, polyploidy may have beneficial effects on desirable biological related traits.
Kelley Leung
doaj   +1 more source

California's vernal‐pool mousetails (Myosurus, Ranunculaceae): Phylogenetic analysis of ddRADseq data, hybridization tests, and species delimitation

open access: yesJournal of Systematics and Evolution, EarlyView.
We present the first phylogenetic analysis of the Californian species of Myosurus. Our ddRADseq analysis reveals considerably more diversity than what was recognized in recent floristic treatments. Myosurus minimus subsp. apus was found to be a rare species restricted to Southern California and northwestern Baja California.
R. Douglas Stone   +2 more
wiley   +1 more source

Aurora B inhibition induces hyper-polyploidy and loss of long-term proliferative potential in RB and p53 defective cells [PDF]

open access: yes
Polyploidy is a common outcome of chemotherapies, but there is conflicting evidence as to whether polyploidy is an adverse, benign or even favourable outcome. We show Aurora B kinase inhibitors efficiently promote polyploidy in many cell types, resulting
Rituparna Bhatt   +41 more
core   +1 more source

The host range paradox of Meloidogyne incognita: a physiological and transcriptomic analysis of nine susceptible interactions across six plant orders

open access: yesNew Phytologist, EarlyView.
Phylogenetic distance of host does not explain phenotypic differences of Meloidogyne incognita parasitism at 25 dpi. Summary The plant–parasitic nematode Meloidogyne incognita is the pathogen with the broadest host range among all known biotrophic interactions.
Victor Hugo Moura de Souza   +11 more
wiley   +1 more source

Suppression of polyploidy by the BRCA2 protein

open access: yes, 2007
Mounting evidence implicates BRCA2 not only in maintenance of genome integrity but also in cell-cycle checkpoints. However, the contribution of BRCA2 in the checkpoints is still far from being understood.
Sagulenko, V.   +17 more
core   +1 more source

Reticulate allopolyploidy and subsequent dysploidy drive evolution and diversification in the cotton family

open access: yesNature Communications
Polyploidy and subsequent post-polyploid diploidization (PPD) are key drivers of plant genome evolution, yet their contributions to evolutionary success remain debated.
Ren-Gang Zhang   +17 more
doaj   +1 more source

Field generation of triparental sugar beet plants through polyspermy‐induced three‐parent breeding

open access: yesNew Phytologist, EarlyView.
Polyspermy, the fertilization of an egg by two sperm cells, can generate viable triparental offspring in the model plant Arabidopsis thaliana. To explore the potential for three‐parent breeding in a crop species, male‐sterile sugar beet plants were grown alongside genetically distinct pollen donors carrying dominant, traceable selection markers ...
Saurabh Joshi   +10 more
wiley   +1 more source

Loss of Hippo Signaling Promotes Polyploidy and Tumorigenesis

open access: yes, 2017
YAP activates AKT signaling to promote mitotic arrest, polyploidy, and hepatocellular carcinoma.

core   +1 more source

Ecological and evolutionary implications of hybridization, polyploidy and apomixis in angiosperms

open access: yesBotan‪ical Sciences
Hybridization, polyploidy, and apomixis are related to the diversification of angiosperms, generating complex taxonomic relationships between species. Despite the differences in the frequencies of these phenomena, apomixis, the asexual seed production ...
Cinthya I. Cervantes-Díaz   +2 more
doaj   +1 more source

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