Results 21 to 30 of about 15,384 (268)

History and Current Status of Haploidization in Carrot (Daucus carota L.)

open access: yesAgronomy, 2023
The induction of haploid cell development into normal plants enables the production of doubled haploid lines, which are homozygous and can be used in breeding programs as an alternative to conventionally derived inbred lines.
Agnieszka Kiełkowska, Waldemar Kiszczak
doaj   +1 more source

Point Mutations in Centromeric Histone Induce Post-zygotic Incompatibility and Uniparental Inheritance. [PDF]

open access: yes, 2015
The centromeric histone 3 variant (CENH3, aka CENP-A) is essential for the segregation of sister chromatids during mitosis and meiosis. To better define CENH3 functional constraints, we complemented a null allele in Arabidopsis with a variety of mutant ...
Britt, Anne B   +6 more
core   +3 more sources

Efficiency of anther culture technique in the production of wheat double haploids [PDF]

open access: yesZbornik Matice Srpske za Prirodne Nauke, 2008
The objective of the study was to investigate efficiency of anther culture in the production of spontaneous double haploids from randomly selected heterozygous genotypes of wheat (Triticum aestivum L.).
Kondić-Špika Ankica Đ.   +2 more
doaj   +1 more source

Methodological approaches for producing doubled haploids in sugar beet and red beet (Beta vulgaris L.)

open access: yesВавиловский журнал генетики и селекции, 2021
The in vitro production of doubled haploids is a biotechnological path of an accelerated development of parental lines in F1-hybrid breeding programs.
T. R. Grigolava   +6 more
doaj  

Microspore embryogenesis in vitro: the role of stresses

open access: yesВавиловский журнал генетики и селекции, 2019
Gametic embryogenesis is one form of totipotency of plant cells, in which either male or female gametes are induced to form embryoids (sporophytes). Regeneration of haploid plants from embryoids and subsequent chromosome duplication result in doubled ...
T. I. Djatchouk   +4 more
doaj   +1 more source

Determination of the level of androgenesis in tobacco (Nicotiana tabacum L.) [PDF]

open access: yesJournal of Central European Agriculture, 2011
Androgenesis is the newest and most secure method to obtain haploid plants in vitro, where vegetative or generative nucleus of a pollen grain is stimulated to develop into a haploid individual.
Gordana MICESKA
doaj   +1 more source

Under-dominance constrains the evolution of negative autoregulation in diploids [PDF]

open access: yes, 2012
Regulatory networks have evolved to allow gene expression to rapidly track changes in the environment as well as to buffer perturbations and maintain cellular homeostasis in the absence of change.
Pomiankowski, Andrew   +3 more
core   +4 more sources

Comparison of methods for obtaining doubled haploids of carrot

open access: yesActa Societatis Botanicorum Poloniae, 2017
Doubled haploid lines of carrot can be obtained through androgenesis in anther cultures and in isolated microspore cultures. The two methods were compared using three carrot cultivars (‘Kazan F1’, ‘Feria F1’, and ‘Narbonne F1’) at the androgenesis ...
Waldemar Kiszczak   +4 more
doaj   +1 more source

Strategies for the evolution of sex [PDF]

open access: yes, 2001
We find that the hypothesis made by Jan, Stauffer and Moseley [Theory in Biosc., 119, 166 (2000)] for the evolution of sex, namely a strategy devised to escape extinction due to too many deleterious mutations, is sufficient but not necessary for the ...
A. Bernardes   +28 more
core   +2 more sources

Conservation of centromeric histone 3 interaction partners in plants [PDF]

open access: yes, 2020
The loading and maintenance of centromeric histone 3 (CENH3) at the centromere are critical processes ensuring appropriate kinetochore establishment and equivalent segregation of the homologous chromosomes during cell division.
Geelen, Danny   +3 more
core   +1 more source

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