Research Notes : Poland : Identification and evaluation for mutation of agricultural characters in soybean

In genetic and breeding work for soybean, it is essential to establish a variety adaptable to the climatic conditions of Poland. Induction of mutations is likely to broaden the variation range and help select traits favorable from the breeders\u27 viewpoint. An attempt to induce mutations was made on material genetically differentiated

Research Notes : United States : Monosomics from synaptic KS mutant

Our study of unknown synaptic mutants attempts to provide more information about genetics of megasporogenesis and microsporogenesis in soybean. This study attempts also to develop aneuploid stocks to be used to establish a genetic map in soybeans. Synaptic mutants are known to produce aneuploid and polyploid plants

Research Notes : United States : New independent mutation: msl (Ames 2)

Five different populations have been recognized as a source of msl alleles. Genetics studies of male-sterile, female-fertile mutations conducted by Palmer et al. (1978) showed that msl (North Carolina) (T260), msl (Urbana) (T266), msl (Tonica) (T267), and msl (Ames) (T268) are independent mutations at the msl locus. Yee and Jian (1983) reported another mutation at the msl locus, designated Shennong Male-Sterile Soybean L-78-387

Research Notes : United States : New male-sterile, female-fertile mutations in soybean

Three new spontaneous independent male-sterile, female-fertile (MS-FF) mutations were used for cytological observations and for allelism tests. One of them was found in the cultivar \u27Beeson\u27. The JB and BDI mutations were found in advanced breeding populations

A New Synthetic Amphidiploid in Cucumis from a C. sativus x C. hystrix F1 Interspecific Hybrid

CT. A synthetic amphidiploid was developed through organogenesis in tissue culturefrom an interspecific F1hybrid betweenCucumis sativus L. andC. hystrix Chakr. The resultsfrom flow cytometry indicated that, on average, 7.3% of the regenerants with unique morphology were chromosome-doubled F1hybrids. The 2C DNA content of the original F1hybrid was1.17 pg, and the 4C DNA content was 2.35 pg. Frequency of chromosome doubling between thetwo genotypes used in this study varied considerably

Research Notes : Poland : Identification and evaluation for mutation of agricultural characters in soybean

In genetic and breeding work for soybean, it is essential to establish a variety adaptable to the climatic conditions of Poland. Induction of mutations is likely to broaden the variation range and help select traits favorable from the breeders' viewpoint. An attempt to induce mutations was made on material genetically differentiated.</p

Research Notes : United States : New independent mutation: msl (Ames 2)

Five different populations have been recognized as a source of msl alleles. Genetics studies of male-sterile, female-fertile mutations conducted by Palmer et al. (1978) showed that msl (North Carolina) (T260), msl (Urbana) (T266), msl (Tonica) (T267), and msl (Ames) (T268) are independent mutations at the msl locus. Yee and Jian (1983) reported another mutation at the msl locus, designated Shennong Male-Sterile Soybean L-78-387.</p

Research Notes : United States : New male-sterile, female-fertile mutations in soybean

Three new spontaneous independent male-sterile, female-fertile (MS-FF) mutations were used for cytological observations and for allelism tests. One of them was found in the cultivar 'Beeson'. The JB and BDI mutations were found in advanced breeding populations.</p

Research Notes : United States : Monosomics from synaptic KS mutant

Our study of unknown synaptic mutants attempts to provide more information about genetics of megasporogenesis and microsporogenesis in soybean. This study attempts also to develop aneuploid stocks to be used to establish a genetic map in soybeans. Synaptic mutants are known to produce aneuploid and polyploid plants.</p