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This article in CS

  1. Vol. 12 No. 1, p. 114-116
     
    Received: July 19, 1971
    Published: Jan, 1972


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doi:10.2135/cropsci1972.0011183X001200010040x

An Example of Increased Recombination in Gossypium1

  1. Joshua A. Lee2

Abstract

Abstract

A chromosome bearing a marked segment was transferred from the diploid species Gossypium raimondii Ulb. to the teraploid species, Gossypium hirsutum L. Upon mating with the homeologous G. hirsutum chromosome, the segment gave 2.4% recombination for the two markers used. When the genes were later recombined from the repulsion phase, the recombination value increased to an average of 20.2%. This increase was attributed to accelerated recombination in homologously paired segments that appeared in the intercalary region following initial breakage.

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