Zobrazeno 1 - 10
of 12
pro vyhledávání: '"T. J. Ennis"'
Autor:
T. J. Ennis, P. de Groot
Publikováno v:
The Canadian Entomologist. 122:1131-1135
The male meiotic karyotypic formula of Conophthorus coniperda (Schwarz) (Coleoptera: Scolytidae) is 9AA + XY. This karyotype differs from C. resinosae Hopkins and C. banksianae McPherson, both of which have the karyotypic formula of 8AA + XY. Supernu
Publikováno v:
The Canadian Entomologist. 109:1203-1220
Field studies in Ontario, Oregon, and California on interspecific attraction and inhibition among the coniferophagous species of Choristoneura (the spruce budworm and its allies) confirmed specific pheromonal differences among the species. Of the thr
Publikováno v:
The Forestry Chronicle. 59:58-61
Research and development over many years have now established that Bacillus thuringiensis Berliner (B.t.) can be a safe and effective biological insecticide for spruce budworm. B.t. must be ingested before it can kill the insect and good results are
Autor:
T. J. Ennis
Publikováno v:
Canadian Journal of Genetics and Cytology. 17:75-80
Prolonged Feulgen hydrolysis of chromosomes of Chilocorus orbus Csy. and C. stigma Say produces banding patterns that are the reverse of those revealed with quinacrine; brightly fluorescing regions are unstained, but nonfluorescent regions remain rel
Autor:
S. S. Sohi, T. J. Ennis
Publikováno v:
Canadian Journal of Genetics and Cytology. 18:471-477
Chromosome number and morphology have been examined in four established cell lines (Md63, Md66, Md108, and Md109) of the forest tent caterpillar, Malacosoma disstria Hübner, and one (Cf124) of the spruce budworm, Choristoneura fumiferana (Clemens).
Autor:
T. J. Ennis
Publikováno v:
Canadian Journal of Genetics and Cytology. 20:427-429
A mutant adult phenotype of the spruce budworm, Choristoneura fumiferana (Clemens), possesses orange eyes in place of the normal dark purple wild type. Larvae are paler than wild type, and testis pigment is orange instead of purple. The mutant phenot
Autor:
T J Ennis
Publikováno v:
Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie. 18(1)
Chromosome replication has been analysed in four species of Chilocorus. In C. orbus Csy., C. tricyclus Smith, and C. hexacyclus Smith, centric regions of all chromosomes are last to replicate, preceded in order by heterochromatic arms and euchromatic
Autor:
T. J. Ennis
Publikováno v:
Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie. 18(1)
Three classes of sex chromatin (SC) distribution have been encountered in a sample of Canadian Lepidoptera. In 78 of the 103 species examined, females were SC positive and males were SC negative. In another 24 species, females and males were SC negat
Autor:
T. J. Ennis
Publikováno v:
Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie. 16(3)
Chromosomes of six species of Chilocorus have been examined for their reaction to Quinacrine (Q), and to Giemsa (G) after a variety of 'Denaturation-Renaturation' schedules and digestion with trypsin. Four types of chromatin can be distinguished with
Autor:
T J Ennis
Publikováno v:
Canadian journal of genetics and cytology. Journal canadien de genetique et de cytologie. 15(4)
Gelus californicus is a unique example, among Curculionoidea, of evolutionary mutation to a post-reductional sex-determining mechanism, autosomal behavior having remained perfectly conventional. It has the lowest reported chromosome number in the sup