ISSN:
1432-2242
Keywords:
Soybean
;
Glycine max
;
Genetic instability
;
Transposable element
;
Anthocyanin
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Summary Plants of the “w4-mutable” line of soybean [Glycine max (L.) Merr.] are chimeral for anthocyanin pigmentation. Mutable plants produce both near-white and purple flowers, as well as flowers of mutable phenotype with purple sectors on near-white petals. It is established here that the mutable trait is conditioned by an unstable recessive allele of the w4 locus that conditions anthocyanin biosynthesis. The gene symbol w4-m is assigned to the mutable allele. Allele w4-m was derived from a stable, wild-type W4 progenitor allele and reverts at high frequency to a stable, wild-type W4 allele. Reversion occurs both early and late during the development of the germ line. Several experiments give estimates of germinal reversion frequency, indicating that approximately 6% of mutable alleles revert to wild-type from one generation to the next. Allele w4-m exhibits many features typical of an allele controlled by a transposable element.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00225946
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