Abstract
A study was made on the phylogenetic relationships of species of the family Resedaceae, based on morphological features, chromosome meiotic behaviour, karyotype features, size and fertility of pollen grains, nucleotypic parameters, seed protein profiles and esterase isozyme patterns.
For the comparison of the seed protein profiles among species a method was developed based on the presence or absence of the bands by means of a computer program. The dendrogram obtained by such a method is in line, to a great extent, with the clusters (sections) obtained within the family based on morphological features.
Data on meiotic behaviour and on morphology, such as the type of fruit, carpel numbers and others, suggest that x=5 is the primitive basic chromosome number of this family. x1=6 and x2=7 are considered as secondary basic numbers derived from x=5 through aneuploid changes.
The results support a proposed phylogenetic tree of the genera and sections of the genus Reseda represented in the European Flora.
The principal phenomena that have operated in the evolution of the Resedaceae seem to be aneuploid changes, polyploidy and structural rearrangements. A trend towards DNA increase in the evolution of this group is also apparent.
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González-Aguilera, J.J., Fernández-Peralta, A.M. Phylogenetic relationships in the family Resedaceae L.. Genetica 64, 185–197 (1984). https://doi.org/10.1007/BF00115343
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DOI: https://doi.org/10.1007/BF00115343