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  • 1
    Electronic Resource
    Electronic Resource
    Complex social behaviour derived from maternal reproductive traits (2006)
    [s.l.] : Nature Publishing Group
    Nature 439 (2006), S. 76-78 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A fundamental goal of sociobiology is to explain how complex social behaviour evolves, especially in social insects, the exemplars of social living. Although still the subject of much controversy, recent theoretical explanations have focused on the evolutionary origins of worker behaviour ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/nature04340
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  • 2
    Electronic Resource
    Electronic Resource
    Genetic determination of guarding and undertaking in honey-bee colonies (1988)
    [s.l.] : Nature Publishing Group
    Nature 333 (1988), S. 356-358 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Behavioural differentiation among worker honey bees is in part age-based, but there is also variation among workers in the rate of behavioural development and the degree of task specialization at a particular age6'7. Due to polyandry8"10 and sperm mixing10'11, honey-bee colonies are assemblages of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/333356a0
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  • 3
    Electronic Resource
    Electronic Resource
    Nepotism in the honey bee (1990)
    [s.l.] : Nature Publishing Group
    Nature 346 (1990), S. 708-708 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] PAGE AND ROBINSON REPLY-The ability of worker honey bees to discriminate among queen larvae on the basis of kinship has been controversial since two papers were published in 1984, when R.E.P. and Erickson reported19 that workers could distinguish between nestmate and non-nestmate larvae while ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/346708a0
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  • 4
    Electronic Resource
    Electronic Resource
    Neotropical African bees (1989)
    [s.l.] : Nature Publishing Group
    Nature 339 (1989), S. 181-182 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] DESCENDANTS of African honey bees that were imported into Brazil in 1956 have successfully colonized most of South and Central America and are now spreading throughout Mexico. The spread of this feral 'Africanized' population has been followed and documented for more than 25 years, but the genetic ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/339181b0
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  • 5
    Electronic Resource
    Electronic Resource
    Genetic specialists, kin recognition and nepotism in honey-bee colonies (1989)
    [s.l.] : Nature Publishing Group
    Nature 338 (1989), S. 576-579 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Honey-bee colonies normally consist of about 17 subfamilies7. Members of the same subfamily, super sisters14, share both a queen mother and a drone father and, in the absence of inbreed-ing, have a coefficient of genetic relationship of 0.75 (ref. 15). Half-sisters belong to different subfamilies, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/338576a0
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  • 6
    Electronic Resource
    Electronic Resource
    Patterns of inheritance with RAPD molecular markers reveal novel types of polymorphism in the honey bee (1992)
    Springer
    Theoretical and applied genetics 85 (1992), S. 15-20 
    Details
    ISSN: 1432-2242
    Keywords: Random amplified polymorphic DNA (RAPD) ; Apis mellifera ; Genetic markers
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The polymerase chain reaction (PCR) was used to generate random amplified polymorphic DNA (RAPD) from honey bee DNA samples in order to follow the patterns of inheritance of RAPD markers in a haplodiploid insect. The genomic DNA samples from two parental bees, a haploid drone and a diploid queen, were screened for polymorphism with 68 different tennucleotide primers of random sequence. Parents were scored for the presence or absence of individual bands. An average of 6.3 bands and 1.3 polymorphisms for presence/absence were observed per primer between the parents. Thirteen of these primers were used to determine the inheritance of RAPD marker alleles in the resulting progeny and in haploid drones from a daughter queen. Four types of polymorphisms were observed. Polymorphisms for band presence/absence as well as for band brightness were inherited as dominant markers, meeting Mendelian expectations in haploid and diploid progeny. Polymorphisms for fragment-length were also observed. These segregated in a near 1∶1 ratio in drone progeny. The last type of polymorphism was manifested as a diploid-specific band. Mixing of amplification products after PCR showed that the diploid-specific band was the result of heteroduplex formation from the DNA of alternate alleles in heterozygotes. In two of the four cases of heteroduplex formation, the alternative alleles were manifested as small fragment-length polymorphisms, resulting in co-dominant markers. This is the first demonstration that a proportion of RAPD markers are not inherited in a dominant fashion.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00223839
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  • 7
    Electronic Resource
    Electronic Resource
    Intra- and interspecific nestmate recognition inMelipona workers (Hymenoptera: Apidae) (1991)
    Springer
    Journal of insect behavior 4 (1991), S. 463-469 
    Details
    ISSN: 1572-8889
    Keywords: stingless bees ; Melipona ; nestmate recognition ; Apis mellifera
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The possible significance of nestmate recognition in prevention of robbing and parasitism in three species of stingless bees was assessed. Nestmate discrimination abilities vary among them; Melipona quadrifasciataworkers attacked 74% of nonnestmate conspecifics that were encountered, while M. scutellarisand M. rufiventriswere less discriminating, attacking only 14 and 60% of non-nestmates, respectively. In tests of interspecific interactions, M. quadrifasciataand M. scutellariswere the least mutually tolerant of all species pairs tested. Tests with Apis melliferashowed a high degree of intolerance by two of the three Meliponaspecies.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01049331
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  • 8
    Electronic Resource
    Electronic Resource
    Phenotypic variation in susceptibility of honey bees,Apis mellifera, to infestation by tracheal mites,Acarapis woodi (1987)
    Springer
    Experimental and applied acarology 3 (1987), S. 291-305 
    Details
    ISSN: 1572-9702
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A laboratory bioassay was used to study phenotypic differences in susceptibility of honey bees,Apis mellifera L., to tracheal mites,Acarapis woodi Rennie. Significantly different infestation frequencies were found in bees from 23 colonies containing queens that were instrumentally inseminated with single drones. Queens and drones originated from a closed population composed of commercial stock from various areas of the United States. Mites were randomly distributed with respect to right and left prothoracic tracheae. Tracheae containing mites were no more or less attractive to migrating mites than non-infested tracheae. The same quantity of progeny per female was produced in tracheae containing 1–3 mites. Female mites apparently do not migrate a second time after egg laying begins. The degree of phenotypic variation suggests that selection of honey bees for tracheal mite resistance is feasible.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01193166
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  • 9
    Electronic Resource
    Electronic Resource
    Effect of age of worker honey bees (Apis mellifera) on tracheal mite (Acarapis woodi) infestation (1989)
    Springer
    Experimental and applied acarology 7 (1989), S. 153-160 
    Details
    ISSN: 1572-9702
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The susceptibility of worker honey bees,Apis mellifera L., as a function of age, to infestation by tracheal mites,Acarapis woodi Rennie, was investigated. Bees 〈24 h old were infested most frequently, and the frequency of infestation declined precipitously thereafter. Bees 〉4 days old were rarely infested in colonies during active brood rearing. Only 2 of 255 bees 〉8 days old, and 1 of 246 bees 〉16 days old, became infested. Most of the eggs found in bees〉3 weeks old apparently were produced by the progeny of the original infestation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01270435
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  • 10
    Electronic Resource
    Electronic Resource
    Genotypic variation in susceptibility of honey bees (Apis mellifera) to infestation by tracheal mites (Acarapis woodi) (1990)
    Springer
    Experimental and applied acarology 8 (1990), S. 275-283 
    Details
    ISSN: 1572-9702
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Two-way selection for lines of honey bees (Apis mellifera L.) susceptible and resistant to infestation by tracheal mites (Acarapis woodi Rennie) was conducted for two generations. Individuals of the susceptible line were 1.4 and 2.4 times more likely to become infested by female mites after the first and second generations, respectively. These results demonstrate that genotypic variability exsts within North American populations and that selection for resistance is feasible. The mechanisms of resistance are unknown.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01202137
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