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Chiasma and recombination data in plants: are they compatible?

Trends in GeneticsPublished 1 October 1993
Nils‐Otto Nilsson, Torbjörn Säll, Bengt Bengtsson
Citations75
SJR quartileQ1
SJR score3.93
SNIP2.86

TL;DR

Recent investigations in plants show an unexpected discrepancy in the results obtained when calculating the total number of crossover events per meiosis by crossovers and chiasmata.

Abstract

It has long been considered that the number of chiasmata formed during meiosis corresponds to the number of crossovers indicated by the genetic map. However, recent investigations in plants show an unexpected discrepancy in the results obtained when calculating the total number of crossover events per meiosis by these two methods. Is this discrepancy due to methodological difficulties? Or is there something fundamentally wrong with our understanding of crossovers and chiasmata?

Keywords

Agricultural and Biological SciencesBiochemistry, Genetics and Molecular Biology