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This article in CS

  1. Vol. 28 No. 4, p. 709-711
     
    Received: Oct 5, 1987


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doi:10.2135/cropsci1988.0011183X002800040032x

Inheritance of a 1BL/1RS Wheat-Rye Translocated Chromosome in Wheat

  1. A. Lane Rayburn  and
  2. D. W. Mornhinweg
  1. Dep. of Agronomy, Oklahoma State Univ., Stillwater, OK, 74078

Abstract

Abstract

In the Great Plains, winter wheat (Triticum aestivum L.) lines carrying the 1BS/1RL wheat-rye translocated chromosome are being used extensively in wheat breeding programs. This study was conducted to determine the influence of the 1BL/1RS chromosomone gametic transmission in adapted winter wheat backgrounds. Oklahoma experimental line OK83398 (‘Aurora’/2*TAM W-101) was crossed to both ‘Arkan’ and ‘Chisholm’. The F2 plants were analyzed as to their chromosomal composition using the chromosomal N-banding procedure. In both crosses a significant deviation of a 1 homozygous 1B:2 heterozygous:1 homozygous 1BL/1RS ratio at the P = 0.05 level was observed. The transmission of gametes containing the 1BL/1RS translocated chromosome was observed to be reduced in F1 hybrids in winter wheat backgrounds.

Contribution of the Oklahoma Agric. Exp. Stn. Journal Paper no. J 5191.

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