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

Method using male sterility and a marker to produce hybrid seeds and plants

A method is provided for efficiently producing superior hybrid seed and plants. The method uses a genetic mechanism for ensuring high percentages of natural cross-pollination and combines this mechanism with a genetically conferred morphological trait that allows recognition of desirable genotypes at an early development stage. The genetic mechanism for ensuring high percentages of cross-pollination is male-sterile, a recessive genetic mutant. Thus, the method includes protocols for developing genetic male-sterile (ms) lines. The genetically conferred morphological trait that allows recognition of desirable genotypes at an early development stage is a seedling marker. Thus, the method includes protocols for developing genetic male-sterile (ms) lines with a seedling marker. In watermelon for example, the seedling marker can be a conditionally unfit mutant such as juvenile-albino (ja)

Just a melancholy echo ling\u27ring when the day is thru [first line of chorus]

Performers: Doris RhodesPiano, Voice and Chord

Consensus and divergence in international studies: Survey evidence from 140 international studies curriculum programs

There is a growing debate over the extent of consensus or divergence found within interdisciplinary International Studies (IS) programs. Unfortunately, with a few exceptions, this debate has taken place in the absence of empirical data. This article advances our understanding of the current state of IS curricula through an analysis of data generated from a survey of 140 interdisciplinary undergraduate IS majors across the United States. The surveyed programs comprise 63 Doctoral/Research institutions, 40 Master’s institutions, and 37 Baccalaureate institutions found in 38 states and the District of Columbia. The 140 programs are analyzed in terms of six basic components: introductory course(s), research methods, capstone course(s), area and/or thematic concentrations, study abroad, and foreign language requirements. The findings demonstrate significant areas of both consensus and divergence in IS programs.PublishedJournal Articl