By Peter Moens (Eds.)
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Bot. Rev. 47, 421-449. Lynch, M. (1984). Destabilizing hybridization, general-purpose genotypes and geographical parthenogenesis. Q. Rev. Biol. 59, 257-290. Marshall, D. , and Brown, A. H. D. (1981). The evolution of apomixis. Heredity 41, 1-15. Maynard Smith, J. (1971a). The origin and maintenance of sex. In "Group Selection" (G. C. ), pp. 163-175. Aldine-Atherton, Chicago, Illinois. Maynard Smith, J. (1971b). What use is sex? J. Theor. Biol. 30, 319-335. Maynard Smith, J. (1974). Recombination and the rate of evolution.
For example, White (1973, pp. 713-714) suggests that the high mortality rates in the egg and embryo stages in Lonchoptera dubia and Drosophila mangabeirai may be attributed in part to fusion between the acentric and dicentric products of crossing-over within paracentric inversions. In D. mangabeirai all individuals are heterozygous for the same paracentric inversions, and offspring are regularly derived by fusion of the central nuclei which would hold the acentric and dicentric chromosomes (Murdy and Carson, 1959).
Further the former reproduces itself sexually and the latter parthenogenetically (apogamously). " Because this proposition by Ernst was theoretical, Harrison (1927) further states: "In spite of this, it cannot be denied that the explanation covers the observed facts, and besides, these are strengthened by parallel and pertinent observations made both in the field and on cytological preparations. For instance, Lundstrom (1909), Dingier (1908) and myself (Harrison, 1920) have all demonstrated that the majority of European polyploid roses are apomictical.