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Volume 50 (1975)
- Issue 6 Pages 433-
- Issue 5 Pages 361-
- Issue 4 Pages 283-
- Issue 3 Pages 179-
- Issue 2 Pages 99-
- Issue 1 Pages 1-
Volume 50, Issue 6
Displaying 1-2 of 2 articles from this issue
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AKISHI FUKATAMI1975 Volume 50 Issue 6 Pages 433-442
Published: 1975
Released on J-STAGE: May 21, 2007
JOURNAL FREE ACCESS1.The standard strain carrying homozygous gene arrangements in all chromosomal arms has been established for the salivary gland chromosomes of Drosophila lutescens.
2. A composite map of the standard gene arrangements (“A” arrangement for each chromosomal arm) is drawn.
3. By crossing the standard strain with various strains of different geographical regions, the following number of inversions were found for each chromosomal arm, 1 for X, 3 for 2L, 4 for 2R, 3 for 3L, and 4 for 3R, making fifteen in total. The characteristics of these inversions were described together with photographs of salivary gland chromosomes heterozygous for these arrangements and the standard “A” arrangement.
4. Geographical distribution of the various gene arrangements is also summarized.View full abstractDownload PDF (2401K) -
ICHIZO NISHIYAMA, TOMOSABURO YABUNO1975 Volume 50 Issue 6 Pages 443-451
Published: 1975
Released on J-STAGE: May 21, 2007
JOURNAL FREE ACCESSA new cross, A. strigosa×A. pilosa, was successfully made when A. pilosa was a pollen parent. The hybrid indicated 0-4 bivalents with an average 0.75 bivalents per cell.
In A. pilosa×A. ventricosa chromosome configurations of 1III+4II+3I and 1III+3II+5I were most frequentry observed although they usually varied widely.
Based on the available cytogenetic evidence the authors arranged all diploid oats in three groups with AsAs (or AA), TATA and CC genomes. They might have a common ancestor and make progress in different trends of their unique specialization.View full abstractDownload PDF (770K)
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