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- W2076152811 abstract "The genus Crinum is relatively stable cytologically, about 79% taxa are diploid and 21% are polyploid ranging from 3x to about 8x. The diploids are essentially karyotypically stable and while retaining a basic karyotype, the various taxa differ in the extent of heteromorphicity in the marker chromosomes like the long and nucleolar pairs. Hybridization is common and it may have been responsible for part of the karyotypic heteromorphicity both at 2x and polyploid levels. The karyotypic analysis of polyploids and the meiotic study of one triploid taxon indicate allo- or segmental alloploidy may be rather common. In view of the sterility of hybrids there appears a strong genetic differentiation between the taxa.Much of the evolution in this genus, in nature and in garden, appears to have taken place at diploid level through unequal interchanges, para- and pericentric inversions, deletions, misdivision, hybridization and above all by gene mutation. Polyploidy has not played a dominant role." @default.
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- W2076152811 date "1978-01-01" @default.
- W2076152811 modified "2023-09-25" @default.
- W2076152811 title "Genetic mechanisms underlying evolution in Crinum." @default.
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- W2076152811 doi "https://doi.org/10.1508/cytologia.43.575" @default.
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