The use of bridging systems to increase genetic variability in compound chromosome strains for genetic control of Lucilia cuprina (Wiedemann)

1982 ◽  
Vol 63 (4) ◽  
pp. 295-305 ◽  
Author(s):  
G. G. Foster
Keyword(s):  
Genetic Variability ◽  
Genetic Control ◽  
Lucilia Cuprina

scholarly journals Genetic Analysis of Field Trials of Sex-linked Translocation Strains for Genetic Control of the Australian Sheep Blowfly Lucilia cuprina (Wiedemann)

1985 ◽  
Vol 38 (3) ◽  
pp. 275 ◽  
Author(s):  
GG Foster ◽  
WG Vogt ◽  
TL Woodburn
Keyword(s):  
Genetic Analysis ◽  
Genetic Control ◽  
Poor Performance ◽  
Field Trials ◽  
Lucilia Cuprina ◽  
Native Population ◽  
Australian Sheep ◽  
Males And Females ◽  
Progeny Tests ◽  
Release Method

The results of progeny tests of males and females captured during two field trials of sex-linked translocation strains for genetic control of L. cuprina are presented. Males released as mature larvae survived to adulthood and mated with field females. However, the levels of genetic death introduced into the population were insufficient to suppress the native population. This was due partly to seasonal ineffectiveness of the release method, and partly to poor performance of the released males. On average, the mating competitiveness of the released males was only one-third that of field males, whereas their field-reared, translocation-bearing sons were fully competitive with native males.

A Study on the Genetic Variability and Genetic Control of the Important Morphometric Characters of Curcuma aeruginosa Roxb.

2016 ◽  
Vol 23 (2) ◽  
pp. 61-65
Author(s):  
V. Soorya ◽  
V. Radhakrishnan ◽  
K. Mohanan
Keyword(s):  
Genetic Variability ◽  
Genetic Control ◽  
Continuous Distribution ◽  
Low Frequency ◽  
Wide Distribution ◽  
Leaf Length ◽  
Contributing Factors ◽  
Morphometric Characters ◽  
Polygenic Control ◽  
Balanced Distribution

Curcuma aeruginosa Roxb., the pink and blue ginger is an underutilized rhizomatous herb used in the Indian as well as Thai and Malaysian systems of traditional medicine.Its antioxidant and nutraceutical properties have also been explored recently. However, no effort has been made to study the genetic variability and genetic control of the agronomic morphometric characters of this species. Hence the present study was carried out to analyse the genetic variability and genetic control of such characters in the species.All the fifteen morphometric characters showed continuous distribution indicating their polygenic control. Among the growth characters, plant height, leaf length, leaf breadth and leaf area showed accumulation of higher number of dominant alleles in their gene pool and number of tillers and number of leaves per tiller showed higher accumulation of recessive factors. Among the yield characters, length of primary fingers and length of secondary fingers showed a balanced distribution of genotypes, number of primary fingers, number of secondary fingers, diameter of primary tillers, length of mother rhizome and yield per plant showed skewness towards the assembly of higher number of recessive factors and diameter of primary fingers and diameter of secondary fingers showed skewness towards the assembly of dominant contributing factors. However, all the characters under study showed comparatively wide distribution of factor combinations, indicating the broad genetic base of the population under study. However, most of the agronomically important characters showed very low frequency of genotypes with higher number of dominant factors indicating the necessity of selecting superior genotypes to develop improved varieties.

Improved transgenic sexing strains for genetic control of the Australian sheep blow fly Lucilia cuprina using embryo-specific gene promoters

2019 ◽  
Vol 295 (2) ◽  
pp. 287-298 ◽  
Author(s):  
Ying Yan ◽  
Megan E. Williamson ◽  
Rebecca J. Davis ◽  
Anne A. Andere ◽  
Christine J. Picard ◽  
...  
Keyword(s):  
Genetic Control ◽  
Lucilia Cuprina ◽  
Specific Gene ◽  
Gene Promoters ◽  
Blow Fly ◽  
Australian Sheep

Induced gene and chromosome mutants

1981 ◽  
Vol 292 (1062) ◽  
pp. 457-466 ◽  
Keyword(s):  
Genetic Variability ◽  
Genetic Control ◽  
Genetic Manipulation ◽  
Point Mutations ◽  
Personal Communication ◽  
Agricultural Plant ◽  
Plant Trait ◽  
Breeding Research ◽  
Induced Mutants

Plant scientists, including breeders, can use an arsenal of physical and chemical mutagens and appropriate selection techniques to ‘manufacture’ in their experimental plots gene and chromosome mutants to compensate for the erosion of natural sources of genetic variability. They also have the capability of generating in this type of genetic manipulation the entire array of genetic variation inherent in all loci controlling each plant trait, and thus in a relatively short time producing most, if not all, of the genetic variants that have ever occurred in the evolution of a given agricultural plant. This capability is required not only for the breeder concerned with developing new cultivars to meet the numerous and varied demands of the modern farmer, processer and consumer, but also for the geneticist, physiologist, anatomist and biochemist concerned with unravelling important plant processes and their genetic control. In short, these scientists need inexhaustible supplies of genetic variability, often never before selected in Nature or by earlier plant breeders. Numerous experiments demonstrate that induced mutants have considerably extended the genetic variability of a phenotype. An outstanding example is eceriferum (‘waxless’ plant surfaces) in barley. Spontaneous mutations produced several well known variants controlled by about six loci. Genetic analyses of over 1300 induced and the few spontaneous mutants have determined that this trait is controlled by at least 77 loci (Lundqvist 1976, and personal communication). There are numerous alleles at some of these loci. Other examples are described in this paper. The quantity and quality of artificially induced genetic variability in plants is in no small part due to the contributions of improved mutagens, mutagen treatments and selection techniques. A new potent and unique mutagen, sodium azide, is particularly successful in inducing putative point mutations. Recent experiments with barley and Salmonella have revealed that it is not azide per se but an activated metabolite that is the mutagenic agent. The metabolite has been isolated and crystallized and can now be synthesized in vitro . These findings usher in a new category of mutagens and suggest new avenues for understanding the interaction of mutagens with chromosomes and genes and for greater control of the induction of genetic variability in plants. The considerable success of varietal development through induced mutants is well documented: 465 culvitars of sexually and vegetatively reproducing crops have been released that owe some of their production advantage to an induced gene or chromosome mutant. These cultivars have led to considerable economic impact in a number of countries. In breeding research, induced mutants are indispensable for probing and elucidating the pathway and genetic control of important plant processes such as wax synthesis and deposition (von Wettstein-Knowles 1979), nitrogen assimilation (Kleinhofs et al . 1980), photorespiration and different facets of photosynthesis (Somerville & Ogren 1980; Miles et al . 1979; Simpson & von Wettstein 1980) . In the manipulation of plant genes (genetic engineering) in breeding research, it becomes increasingly necessary to pinpoint these genes on chromosomes. For this endeavour, an abundant array of induced chromosome mutants such as trisomics, telotrisomics, acrocentrics, inversions, translocations and deletions is required. This important activity can now be complemented by ever-improving chromosome banding techniques.

Homozygous-viable pericentric inversions for genetic control of Lucilia Cuprina

1991 ◽  
Vol 82 (6) ◽  
pp. 681-689 ◽  
Author(s):  
G. G. Foster ◽  
G. L. Weller ◽  
D. G. Bedo
Keyword(s):  
Genetic Control ◽  
Lucilia Cuprina ◽  
Pericentric Inversions

Transgenic sexing system for genetic control of the Australian sheep blow fly Lucilia cuprina

2014 ◽  
Vol 51 ◽  
pp. 80-88 ◽  
Author(s):  
Fang Li ◽  
Holly A. Wantuch ◽  
Rebecca J. Linger ◽  
Esther J. Belikoff ◽  
Maxwell J. Scott
Keyword(s):  
Genetic Control ◽  
Lucilia Cuprina ◽  
Blow Fly ◽  
Australian Sheep

Larval release method for genetic control of the Australian sheep blowfly, Lucilia cuprina (Wiedemann) (Diptera: Calliphoridae).

1978 ◽  
Vol 68 (1) ◽  
pp. 75-83 ◽  
Author(s):  
G. G. Foster ◽  
M. J. Whitten ◽  
W. G. Vogt ◽  
T. L. Woodburn ◽  
J. T. Arnold
Keyword(s):  
Genetic Control ◽  
Adult Stage ◽  
Lucilia Cuprina ◽  
Larval Release ◽  
Australian Sheep ◽  
Progeny Tests ◽  
Free Falling ◽  
Release Method ◽  
Third Instar Larvae

AbstractA method for releasing genetically altered strains of Lucilia cuprina (Wied.) as free-falling larvae from aircraft was tested. Full-fed genetically marked third-instar larvae were released from aircraft flying at a height of 150 m and speeds of 120 or 220 km/h. Progeny tests of adult flies trapped subsequently indicated that released male larvae survived to the adult stage and were competitive with wild males for females.

Sign in / Sign up

Export Citation Format

Share Document