Journal Issue:
Soybean Genetics Newsletter: Volume 12, Issue 1

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Special reports : U.S. Northern Germplasm Collection Report
( 1985-04-01) Iowa State University Digital Repository
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Research Notes : United States : Nucleolus distribution in quartets from diploid and triploid soybean
( 1985-04-01) Chen, Long-Fang ; Palmer, Reid ; Iowa State University Digital Repository

There are few studies on inheritance and behavior of nucleoli in soybean. Yamaha and Sinoto (1925) reported the behavior of nucleoli in somatic mitosis of 30 species of higher plants including Glycine max [Soja]. Palmer and Heer (1976) observed one large nucleolus and six small nucleoli in a 40-chromosome plant from the st4 st4 synaptic mutant. Folsom and Peterson (1984), in ultrastructural studies of soybean embryo sacs, noted that a micronucleo-lus often was associated with the nucleolus of an egg cell.

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Research Notes : United States : The genomes of the genus Glycine
( 1985-04-01) Singh, R. ; Hymowitz, T. ; Iowa State University Digital Repository

Based upon morphology, geographical distribution, isozyme studies and meiotic chromosome behavior in intra-and interspecific hybrids, we tentatively have assigned the following diploid (2n=40) genome designations to species in the genus Glycine.

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Research Notes : United States : Screening progeny of mutagen-treated soybean seeds for nonfluorescent root mutants
( 1985-04-01) Palmer, Reid ; Schillinger, J. ; Howson, Tracey ; Iowa State University Digital Repository

Delannay and Palmer (1982) reported four nonallelic mutants, three re-cessive and one dominant, that controlled root fluorescence in soybean. It was during this investigation that we became interested in looking for mutagen-induced nonfluorescent mutants. In the fall of 1980, we wrote to various soybean researchers who were engaged in mutagenesis programs.

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Research Notes : Osmia rufa L. (Apoidea, Megalichiae) -A potential pollenator in the subgenus Glycine
( 1985-04-01) Skorupska, H. ; Wilkaniec, Z. ; Iowa State University Digital Repository

Studies on the biology of flowering of wild forms of the subgenus Glycine conducted in a controlled environment demonstrated a conspicuous drop-off of chasmogamic flowers within racemes (Skorupska et al., in press). For pollination, a small-sized insect was employed, viz., a wild bee Osmia rufa L. (0. bicornis L.). The selected wild bee of the family Mechali-chidae is described as the garden mason bee (W6jtowski, 1979).

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