Abstract
The B₄ gene, the most effective gene for blight resistance in Upland cottons, was found to be closely linked with the P gene for yellow pollen color. The average percent crossing over of the test cross and F₂ was 4.45 which provides an estimate of the chromosomal distance between the two loci. Information on inheritance supports results reported by others for the B₄ and P genes. The discovery of close linkage between the B₄ and P genes will reduce the amount of artificial inoculation normally required for transferring B₄ resistance. Pollen color can be utilized as a marker gene for transferring blight resistance so long as favorable linkage exists initially. ...
Tayel, Mohamed-Aly Fathalla (1972). Linkage relationships between the B₄ gene for bacterial blight resistance and genes for pollen color, lint percentage and seedling traits in Gossypium hirsutum L. Texas A&M University. Texas A&M University. Libraries. Available electronically from
https : / /hdl .handle .net /1969 .1 /DISSERTATIONS -186615.