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  • 1
    Electronic Resource
    Electronic Resource
    Inheritance of resistance to the cowpea aphid in cowpea (1987)
    Springer
    Theoretical and applied genetics 74 (1987), S. 817-819 
    Details
    ISSN: 1432-2242
    Keywords: Aphis craccivora Koch ; Resistance genetics ; Insect resistance ; Vigna unguiculata (L.) Walp
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Inheritance of resistance to cowpea aphid, Aphis craccivora Koch, in three resistant cultivars of cowpea, Vigna unguiculata (L.) Walp, was studied. The parents, F1 and F2 population were grown in an insect-proof screenhouse. Each 3-day-old seedling was infested with 10 apterous adult aphids. Seedling reaction was recorded when the susceptible check was killed. The segregation data revealed that the resistance of ICV11 and TVU310 is governed by single dominant genes. All the F2 seedlings of the cross ICV10xTVU310 were resistant, indicating that they have the same gene for resistance. However, the F2 populations from the crosses ICV10xICV11 and ICV11xTVU310 segregated in a ratio of 15∶1, indicating that the dominant genes in ICV11 and TVU310 are non-allelic and independent of each other. The resistance gene of ICV10 and TVU310 is designated as Ac1 and that of ICV11 as Ac2.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00247562
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    The epidemiological transition and the risk factors for non-insulin-dependent diabetes mellitus (NIDDM) in «Punjabi» population of north India (1990)
    Springer
    International journal of anthropology 5 (1990), S. 203-213 
    Details
    ISSN: 1824-3096
    Keywords: Epidemiological transition Obesity ; Hypertension ; Punjabis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The prevalence of NIDDM in the «Punjabi» population from north India corroborates the «epidemiological transition» model. Hospital admittees gave a higher prevalence of NIDDM in urban areas (8.2–9.3 percent), as compared to rural areas (2.4 percent), and this difference probably is the outcome of the respective lifestyles. Moreover, urban residents are 3.7 times more likely to develop diabetes than are rural residents. Principal component analysis suggests a high correlation of NIDDM with age, BMI, systolic and diastolic blood pressure. The combined relative risk of diabetes with hypertension as a risk factor was 5.16 (p〈.0001). Findings indicate that a combination of risk factors show significant association with diabetes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02446245
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Linkage relationships among loci controlling morphological traits in cowpea (Vigna unguiculata (L.) Walp.) (1995)
    Springer
    Euphytica 92 (1995), S. 307-311 
    Details
    ISSN: 1573-5060
    Keywords: cowpea ; genetic linkage ; genes ; linkage maps ; Vigna unguiculata
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Linkage among loci controlling various morphological traits in cowpea were determined using F2 progenies. Data were collected on individual plants of four crosses segregating for several loci. Recombination estimates between the following pairs of loci were as follows: Sw (swollen vs normal stem base)-Fbc (cream vs green flower buds) (41±4.8%), Pus(purple vs green stems)-Cbr (cocoa-brown vs straw-yellow dry pods) (31±5.7%), Pup(purple vs green immature pods)-Cbr (30±5.7%), Pus-Pup (4±1.5%), Ndt (non-determinate vs determinate)-Pd (peduncle colour) (26±2.8%), Ndt-Hg (semi-erect vs erect plant type) (26±2.8%), Pt(purple vs green pod tips)-Bk (greyish-black vs straw-yellow dry pods) (19±2.4%) and Hg-Bpd (normal vs branching peduncle (24±9.5%). Four linkage groups (LG) were identified in these studies. The proposed LG I contained loci Sw and Fbc; LG II loci Pus, Pup, and Cbr; LG III loci Pd, Ndt, Gh, and Bpd; and LG IV loci Ptand Bk.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00037113
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    Paper (German National Licenses)
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