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A Review of Unreduced Gametes and Neopolyploids in Alfalfa: How to Fill the Gap between Well-Established Meiotic Mutants and Next-Generation Genomic Resources.
Plants (Basel)
May 2021
Department of Agronomy Food Natural Resources Animals Environment, Campus of Agripolis, University of Padova, 35020 Padova, Italy.
The gene flow mediated by unreduced gametes between diploid and tetraploid plants of the complex is pivotal for alfalfa breeding. Sexually tetraploidized hybrids could represent the best way to exploit progressive heterosis simultaneously derived from gene diversity, heterozygosity, and polyploidy. Moreover, unreduced gametes combined with parthenogenesis (i.
View Article and Find Full Text PDFInheritance and mapping of 2n-egg production in diploid alfalfa.
Genome
June 2000
Dipartimento di Agronomia Ambientale e Produzioni Vegetali, University of Padova, Legnaro, Italy.
The production of eggs with the sporophytic chromosome number (2n eggs) in diploid alfalfa (Medicago spp.) is mainly associated with the absence of cytokinesis after restitutional meiosis. The formation of 2n eggs through diplosporic apomeiosis has also been documented in a diploid mutant of M.
View Article and Find Full Text PDFThe target-reaching and food-taking behaviour in the cat: a model for the investigation of recovery of motor functions.
NeuroRehabilitation
February 2014
Department of Physiology, Christian-Albrechts-Universität zu Kiel, Olshausenstraße 40, D-24098 Kiel, Germany.
The recovery of motor functions after CNS lesions is a complex action with several restitutional processes occurring in parallel. To describe the function-oriented phenomena and to understand the organisational changes within the neuronal systems in question there is the urgent need for investigations relating the impairment of defined neuronal systems with quantitative and qualitative changes of a behavioural motor paradigm. The system of the C3-C4 propriospinal neurones in the cat is one of the models which could serve such a purpose.
View Article and Find Full Text PDFThis biologically oriented review attempts to complement earlier and more psychological performance based reviews of total sleep deprivation. Also, the effects of total sleep deprivation are interpreted, here, from a function of human sleep perspective, rather than from the more usual stress viewpoint. It would appear that total sleep deprivation does not produce any major changes in biochemical and physiological measures of somatic functioning.
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