Allosyndesis

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feminine noun (genetics / biology / cytology)

Definition

A cytogenetic phenomenon or structural process consisting of the pairing (synapsis) during meiosis of non-homologous chromosomes originating from different parents or distinct species within a hybrid or allopolyploid organism. This type of atypical chromosomal association differs structurally from autosynapsis and plays an essential role in analyzing genomic reconfiguration and the degree of phylogenetic relationship between taxa.

Bilingual Equivalents

  • Allosyndesis
  • Allosynapsis

Grammatical & Source Details

Inflection Type Feminine abstract noun, showing regular structural plural variations and genitive-dative case markings.
Formation Neoclassical scientific compound combining the prefix 'allo-' (different) with the Greek root 'syndesis' (binding/binding together).
Spelling / Pronunciation [ˌæ.loʊ.ˈsɪn.də.sɪs]
Source Encyclopedia of Cytogenetics, Chromosome Research, and Evolutionary Genetics

Contextual Usage Examples

RO: Analiza microscopică a arătat o alosindeză parțială între seturile cromozomiale ale hibridului steril, explicând anomaliile din timpul meiozei.

EN: Microscopic analysis showed partial allosyndesis between the chromosome sets of the sterile hybrid, explaining the anomalies during meiosis.

RO: Fenomenul de alosindeză structurală permite transferul de gene rezistente de la speciile sălbatice la plantele de cultură prin încrucișare.

EN: The phenomenon of structural allosyndesis allows the transfer of resistant genes from wild species to crop plants through cross-breeding.

RO: Cercetătorul a publicat un studiu citogenetic axat pe diferențele majore dintre autosindeză și procesele de alosindeză.

EN: The researcher published a cytogenetic study focused on the major differences between autosyndesis and allosyndesis processes.

Idioms & Phrases

Alosindeză completă / Complete allosyndesis

RO: Asociere meiotică perfectă în care toți cromozomii proveniți de la un părinte se împerechează cu succes cu cei ai celuilalt părinte distinct.

EN: A perfect meiotic association where all chromosomes originating from one parent successfully pair with those of the other distinct parent.

Mecanism de alosindeză / Allosyndetic mechanism

RO: Proces biochimic celular care ghidează alinierea structurală a filamentelor de ADN neomoloage la nivelul complexului sinaptonemal.

EN: A cellular biochemical process guiding the structural alignment of non-homologous DNA strands at the synaptonemal complex level.

Alosindeză structurală genetică / Structural genetic allosyndesis

RO: Configurație cromozomială hibridă stabilă ce determină rate variabile de recombinare și segregare a caracterelor în generațiile secunde.

EN: A stable hybrid chromosomal configuration determining variable recombination and segregation rates of traits in second generations.

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