Results 21 to 30 of about 87,420 (336)

Hybridization between wild and cultivated potato species in the Peruvian Andes and biosafety implications for deployment of GM potatoes [PDF]

, 1976
The nature and extent of past and current hybridization between cultivated potato and wild relatives in nature is of interest to crop evolutionists, taxonomists, breeders and recently to molecular biologists because of the possibilities of inverse gene ...
Maria Scurrah, Carolina Celis-Gamboa, Susana Chumbiauca, Alberto Salas, Richard G. F. Visser, R Bernatzky, SB Brush, SL Buchmann, BC Celis, SA Cultivarston, Q Chen, MK Ehlenfeldt, Z Huaman, SA Jackson, T Johns, CM Ochoa, R Ortiz, SJ Peloquin, CF Quiros, MS Ramanna, JC Sanford, DM Spooner, D Ugent, D Ugent, P Vos, KS Zimmerer   +25 more
core   +4 more sources

Interspecific hybridization of sturgeon species affects differently their gonadal development

Czech Journal of Animal Science, 2018
Gonad development in fish is generally assumed to be negatively influenced by interspecific hybridization, resulting in sterility or sub-sterility. However, this is not the case in sturgeons (Acipenseridae), in which fertile hybrids are common.
Zuzana Linhartová, Miloš Havelka, Martin Pšenička, Martin Flajšhans   +3 more
doaj   +1 more source

Ploidy dynamics and evolvability in fungi [PDF]

Philosophical Transactions of the Royal Society B: Biological Sciences, 2016
Rapid responses to acute stresses are essential for stress survival and are critical to the ability of fungal pathogens to adapt to new environments or hosts. The rapid emergence of drug resistance is used as a model for how fungi adapt and survive stress conditions that inhibit the growth of progenitor cells. Aneuploidy and loss of heterozygosity (LOH)
Noa Blutraich Wertheimer, Neil Stone, Judith Berman   +2 more
openaire   +3 more sources

A Target Capture-Based Method to Estimate Ploidy From Herbarium Specimens

Frontiers in Plant Science, 2019
Whole genome duplication (WGD) events are common in many plant lineages, but the ploidy status and possible occurrence of intraspecific ploidy variation are unknown for most species.
Juan Viruel, María Conejero, Oriane Hidalgo, Oriane Hidalgo, Lisa Pokorny, Robyn F. Powell, Félix Forest, Michael B. Kantar, Marybel Soto Gomez, Marybel Soto Gomez, Sean W. Graham, Sean W. Graham, Barbara Gravendeel, Barbara Gravendeel, Barbara Gravendeel, Paul Wilkin, Ilia J. Leitch   +16 more
doaj   +1 more source

Molecular cytogenetic differentiation of paralogs of Hox paralogs in duplicated and re-diploidized genome of the North American paddlefish (Polyodon spathula). [PDF]

, 2017
BackgroundAcipenseriformes is a basal lineage of ray-finned fishes and comprise 27 extant species of sturgeons and paddlefishes. They are characterized by several specific genomic features as broad ploidy variation, high chromosome numbers, presence of ...
Amemiya, Chris T, Flajšhans, Martin, Gela, David, Havelka, Miloš, Howell, William Mike, Kořínková, Tereza, Ráb, Petr, Symonová, Radka   +7 more
core   +4 more sources

p53: Guardian of ploidy

Molecular Oncology, 2011
AbstractAneuploidy, often preceded by tetraploidy, is one of the hallmarks of solid tumors. Indeed, both aneuploidy and tetraploidy are oncogenic occurrences that are sufficient to drive neoplastic transformation and cancer progression. True to form, the tumor suppressor p53 obstructs propagation of these dangerous chromosomal events by either ...
Yael Aylon, Moshe Oren
openaire   +4 more sources

Gender and ploidy in cancer survival [PDF]

Cellular Oncology, 2011
Females carry a better prognosis than men for many cancer types. We hypothesized that chromosomal changes, in particular numerical alterations of the sex chromosomes or the presence of near-triploidy may contribute to these gender differences.To characterize the influence of gender a literature search was performed for survival data of 27 tumor types ...
Susanne Schulze, Iver Petersen
openaire   +2 more sources

Embryos Arising from Apronuclear (0PN) and Unipronuclear (1PN) Have Similar Euploidy Rates with Those from 2PN and Should be Considered for Transfer

Fertility & Reproduction, 2019
Background: Fertilisation assessment is routinely made at 16–18 hours post-ICSI and 18–20 hours post-insemination. However, the absence of pronuclei (PN) during standard fertilisation assessment does not necessarily indicate fertilisation failure.
Adelle Yun Xin Lim, Colin Soon Soo Lee
doaj   +1 more source

Niche divergence and limits to expansion in the high polyploid Dianthus broteri complex [PDF]

, 2019
Niche evolution in plant polyploids remains controversial and evidence for alternative patterns has been reported. Using the autopolyploid Dianthus broteri complex (2×, 4×, 6× and 12×) as a model, we aimed to integrate three scenarios – competitive ...
Balao Robles, Francisco J., López Jurado, Javier, Mateos Naranjo, Enrique   +2 more
core   +1 more source

Human megakaryocyte ploidy.

Histology and histopathology, 1999
We reviewed the literature concerning the history of determination of the ploidy of human megakaryocytes and its relationship with diseases. The ploidy of rabbit megakaryocytes was analyzed by microspectrophotometry in 1964, and the analysis of the ploidy in human megakaryocytes was first performed in 1968. Presently, microphotometry and flow cytometry
Kobayashi, Y., Kondo, M.
openaire   +3 more sources