Inversion heterozygosity in the hybrid soybean × Glycine soja: Evidence from a pachytene loop configuration and other meiotic irregularities

Ahmad Q.N., Britten E.J. and Byth D.E. (1979) Inversion heterozygosity in the hybrid soybean × Glycine soja: Evidence from a pachytene loop configuration and other meiotic irregularities. Journal of Heredity, 70 6: 358-364.

Author Ahmad Q.N.
Britten E.J.
Byth D.E.
Title Inversion heterozygosity in the hybrid soybean × Glycine soja: Evidence from a pachytene loop configuration and other meiotic irregularities
Journal name Journal of Heredity   Check publisher's open access policy
ISSN 0022-1503
Publication date 1979-01-01
Sub-type Article (original research)
Volume 70
Issue 6
Start page 358
End page 364
Total pages 7
Subject 1804 Statistics, Probability and Uncertainty
2604 Applied Mathematics
2716 Genetics (clinical)
1305 Biotechnology
1312 Molecular Biology
1311 Genetics
Abstract Meiotic irregularities and partial sterility were found in the hybrid between the soybean, Glycine max and its presumed wild progenitor, Glycine soja. Chromosome bridges and fragments were believed to be caused by inversion heterozygosity. The presence of an inversion was confirmed by finding an inversion loop at pachytene. Other evidence for inversions came from bivalents that failed to separate in the first division. These bivalents acted as laggards or passed intact to one pole at anaphase I. Nondisjunction of the partners in the bivalents was believed to result from chiasmata occurring in the region of an inversion in the bivalents. The number of bridges, fragments, and lagging bivalents suggest the presence of more than two inversion differences between the two species.Chromosomal differentiation together with wide genetical and morphological differences provide evidence that G. max and G .soja are two distinctly separate species.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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