Definitions

Double
Reduction In Autotetraploids

Tetraploid
Definitions

Concepts - Part I

Concepts - Part II

Concepts - Part III

Determination of Zygote Ratios

Linkage In
Tetraploids

Linkage In Tetraploids

See - deWinton, D., and J.B.S. Haldane. 1931. Linkage in the tetraploid Primula sinensis. J. Genetics 24:121-144.

The are numerous types of linkage relationships in autotetraploids.

Linkage Example Gametic Series
Single coupling XY, xy, xy, xy (1-p)XY, xy:
pXy, xy:
pxY, xy:
(1-p)xy, xy:
Single repulsion Xy, xY, xy, xy 1Xy, xy:
pXY, xy:
(2-p)Xy, xy:
(2-p)xY, xy:
(1+p)xy, xy:
Asymmetrical coupling XY, Xy, xy, xy (1-p)XY, Xy:
(2-p)XY, xy:
pXy, xY:
pXy, Xy:
2Xy, xy:
pxY, xy:
(1-p)xy, xy
Asymmetrical repulsion Xy, Xy, xY, xy pXY, Xy:
pXY, xy:
(2-p)Xy, xY:
(1-p)Xy, Xy:
2Xy, xy:
(1-p)xY, xy:pxy, xy

Copyright 2000©, Ted Helms

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