Cucurbit Genetics Cooperative Report 19:73-77 (article 27) 1996 Oved Shifriss 21 Walter Avenue, Highland Park, NJ 08904 The B genes are nuclear mutants, and each B gene conditions precocious depletion of chlorophyll. In fruits, these genes can be expressed in all known genetic backgrounds. But in some backgrounds they can also be expressed in one […]
Oved Shifriss
On the Selective Activator of Gene B2 in C. moschata
Cucurbit Genetics Cooperative Report 17:120-121 (article 35) 1994 Oved Shifriss 21 Walter Avenue, Highland Park, NJ 08904 Gene B2 originated as mutation in C. maxima (1,2). This gene conditions precocious depletion of chlorophyll in fruits of all known genetic backgrounds. But in some backgrounds, B2 is also expressed in one or more other aerial organs. […]
A Case of Extremely Low Expressivity of Gene B2 in C. moschata.
Cucurbit Genetics Cooperative Report 16:64-67 (article 23) 1993 Oved Shifriss 21 Walter Avenue, Highland Park, NJ 08904 An F2 population of the cross IL-B x NJ-B, C. moschata, was grown in the fall of 1989 in Naples, Florida. According to present interpretation (1, 2), IL-B is B1 + B1 + B2B2 and NJ-B, B1B1 B2 […]
The Two B Genes of Cucurbita are Unlinked
Cucurbit Genetics Cooperative Report 14:116-122 (article 41) 1991 Oved Shifriss 21 Walter Avenue, Highland Park, NJ 08904 The available data (in reference 4 and in the present report) support the conclusion that the two B genes of Cucurbita are unlinked. One of the B genes originated in C. pepo and the other in C. maxima. […]
Expression of the B Genes in Cucurbita
Cucurbit Genetics Cooperative Report 14:113-115 (article 40) 1991 Oved Shifriss 21 Walter Avenue, Highlnd Park, NJ 08904 B1 vs B2. Table 1 shows the effect of the two B genes on different plant organs. B1B1 stands for B1B1B2+ B2+ in tests 1 to 6, and B2B2 stands for stands for B1+B1+B2B2 in tests 7 to 11. […]
Relationship Between the B Genes of Two Cucurbita Species, IV.
Cucurbit Genetics Cooperative Report 13:55-57 (article 22) 1990 Oved Shifriss 21 Walter Avenue, Highland Park, NJ 08904 Raymond B. Volin and Tom V. Williams Northrup King Co., 10290 Greenway Rd., Naples, FL 33962 This report provides data on the inheritance of precocious depletion of chlorophyll in C. moschata based on the cross NJ-B x IL-B […]
Relationship Between the B Genes of Two Cucurbita Species, III.
Cucurbit Genetics Cooperative Report 13:50-54 (article 21) 1990 Oved Shifriss 21 Walter Avenue, Highland Park, NJ 08904 The main subject of this series of reports is the relationship between the gene for precocious depletion of chlorophyll in ovaries of C. pepo and the gene for precocious depletion of chlorophyll in stems and ovaries of C. […]
Control of Chlorophyll During Plant Development: Hypothesis
Cucurbit Genetics Cooperative Report 12:82-83 (article 34) 1989 Oved Shifriss 21 Walter Avenue, Highland Park, NJ 08904 The term “control” in the title pertains to a series of steps that transforms proplastids into chloroplasts, the organelles of chlorophyll synthesis. These steps occur in competent cells that are exposed to light. According to present hypothesis there […]
Relationship between Gene B and Gene Ses-B in Cucurbita pepo L.
Cucurbit Genetics Cooperative Report 12:79-81 (article 33) 1989 Oved Shifriss 21 Walter Avenue, Highland Park, NJ 08904 Gene B conditions precocious depletion of chlorophyll. And the loss of chlorophyll is often associated with precocious yellow pigmentation. The primary target of B is the fruit (2). But B can also affect other potentially photosynthetic organs, depending […]
Relationship between the B Genes of Two Cucurbita Species, II
Cucurbit Genetics Cooperative Report 12:75-77 (article 32) 1989 Oved Shifriss, Raymond B. Volin and Tom V. Williams 21 Walter Avenue, Highland Park, NJ, Northrup King Co., 10290 Greenway Rd., Naples, Fl 33962 The primary effect of a B gene is precocious depletion of chlorophyll in young fruits prior to anthesis (1). Genes conditioning this effect […]