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J. Haldane (1931)
The Cytological Basis of Genetical InterferenceCytologia, 3
Mather Mather (1938)
Crossing‐overBiol. Rev. Cambridge Phil. Soc., 13
Elizabeth Sturt (1976)
A mapping function for human chromosomesAnnals of Human Genetics, 40
C. Tease (1978)
Cytological detection of crossing-over in BUdR substituted meiotic chromosomes using the fluorescent plus Giemsa techniqueNature, 272
Kenneth Lange, N. Risch (1977)
Comments on lack of interference in the four strand model of crossing overJournal of Mathematical Biology, 5
(1938)
C~osairig over
(1919)
The combiiiation of linkage values and calculation of distance between the
JAGEW 1' ( 1974) -1sprcts of random measures and point processes
Haldane Haldane (1919)
The combination of linkage values and calculation of distance between the loci of lniked factorsJ. Genetics, 8
Summary A model of four‐strand crossing‐over is presented in which all non‐randomness is attributed to the non‐Poisson distribution of the number of exchanges. Nth order recombination fractions and the coefficient of coincidence are calculated in terms of the model. It is shown that coincidence may be greater or less than unity depending on the prior distribution of exchanges. An obligate exchange is a sufficient condition for coincidence to be less than unity if there is a maximum of four exchanges, but not necessarily if five or more are possible. It is also shown that triarginal coincidence is a11 insufficient concept to explain the behaviour of coincidence over it entire tn‐o‐climensioiial domain.
Annals of Human Genetics – Wiley
Published: Jul 1, 1979
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