ISSN:
1432-2145
Keywords:
Self-incompatibility
;
Evolution
;
S-RNases
;
Solanaceae
;
Rosaceae
;
Scrophulariaceae
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract This review summarises current understanding of the evolution of self-incompatibility inferred from DNA sequence analysis. Self-incompatibility in many plant families is controlled by a single, highly polymorphicS-locus which, in the Solanaceae, encodes an allelic series of stylar ribonucleases known as the S-RNases. PCR approaches are a convenient way to examine the diversity of S-RNase sequences within and between wild populations of a self-incompatible species and provide a unique view into the species' current and historic population structure. Similar molecular appoaches have also been used to show that S-RNases are involved in self-incompatibility in families other than the Solanaceae. A model for the evolution of ribonuclease-based self-incompatibility systems is discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02441956
