Autosyndesis
Definition
A genetic mechanism during meiosis in polyploid, particularly allopolyploid, organisms, characterized by the pairing (synapsis) and conjugation of homologous chromosomes derived from the same parental set or from the same ancestral species. This structural phenomenon differs from allosyndesis and plays a crucial role in maintaining genomic stability and determining inheritance patterns in complex plant hybrids.
Bilingual Equivalents
- Autosyndesis
- Autosyndetic pairing
Grammatical & Source Details
| Inflection Type | Feminine noun, regular cytogenetic plural and case paradigm variations. |
| Formation | Compound technical noun formed with the prefixoid 'auto-' (self) and the biological noun 'sindeză' (syndesis). |
| Spelling / Pronunciation | [a.u.to.sin.ˈde.zə] |
| Source | Encyclopedia of Genetics, Evolutionary Biology and Cytology Standards |
Contextual Usage Examples
RO: În cadrul analizei citologice a hibridului, cercetătorii au demonstrat existența unui proces clar de autosindeză.
EN: Within the cytological analysis of the hybrid, researchers demonstrated the existence of a clear autosyndesis process.
RO: O autosindeză regulată permite plantelor alopoliploide să producă gâmeți viabili și stabili genetic.
EN: A regular autosyndesis allows allopolyploid plants to produce viable and genetically stable gametes.
RO: Fenomenul de autosindeză a fost observat mai frecvent la seturile cromozomiale native comparativ cu cele modificate în laborator.
EN: The phenomenon of autosyndesis was observed more frequently in native chromosome sets compared to those modified in the laboratory.
Idioms & Phrases
Proces de autosindeză / Autosyndesis process
RO: Succesiune de etape meiotice în care cromozomii de la același părinte se recunosc și se aliniază structural.
EN: A sequence of meiotic steps in which chromosomes from the same parent recognize and structurally align with each other.
Autosindeză completă / Complete autosyndesis
RO: Situație ideală în care toți cromozomii omologi din același set se conjugă perfect, fără a interacționa cu seturile secundare.
EN: An ideal situation where all homologous chromosomes from the same set conjugate perfectly without interacting with secondary sets.
Comportament de autosindeză / Autosyndetic behavior
RO: Tendința genetică a anumitor genomuri hibride de a prefera auto-asocierea în detrimentul împerecherii interspecifice.
EN: The genetic tendency of certain hybrid genomes to prefer self-association over interspecific pairing.
Latest Contextual News
No recent news found for this topic.