The effect of temperature on crossingover in Drosophila

Plough, Harold Henry

doi:10.1002/jez.1400240202

Cited by 220 publications

(112 citation statements)

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“…For example, starvation induced higher recombination rates in yeast, Saccharomyces cerevisiae (Meyen), (Abdullah and Borts 2001) and D. melanogaster (Neel 1941). Similarly, breeding either below or above the optimal temperature led to an increase in recombination rate in earlier (Plough 1917;Plough 1921) and more recent studies of D. melanogaster (Grell 1978). Other abiotic stress factors such as ionizing radiation, mitomycin C, increased salinity and heat are also known to stimulate somatic recombination in plants (Lebel et al 1993;Puchta et al 1995).…”

Section: Discussionmentioning

confidence: 88%

Influence of co-evolution with a parasite, Nosema whitei, and population size on recombination rates and fitness in the red flour beetle, Tribolium castaneum

Greeff

Schmid‐Hempel

2010

Genetica

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The high prevalence of meiotic recombination-an important element of sexual reproduction-represents one of the greatest puzzles in biology. The influence of either selection by a co-evolving parasite alone or in combination with genetic drift on recombination rates was tested in the host-parasite system Tribolium castaneum and Nosema whitei. After eight generations, populations with smaller genetic drift had a lower recombination rate than those with high drift whereas parasites had no effect. Interestingly, changes in recombination rate at one site of the chromosome negatively correlated with changes at the adjacent site on the same chromosome indicating an occurrence of crossover interference. The occurrence of spontaneous or plastic changes in recombination rates could be excluded with a separate experiment.

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Section: Discussionmentioning

confidence: 88%

Influence of co-evolution with a parasite, Nosema whitei, and population size on recombination rates and fitness in the red flour beetle, Tribolium castaneum

Greeff

Schmid‐Hempel

2010

Genetica

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“…Plough (1917) and Grell and Chandley (1965) demonstrated that high temperature increases crossing over in proximal regions of the autosomes. Crossing over in the present studies was increased in the third brood and only in region 2.…”

Section: Resultsmentioning

confidence: 96%

A COMPARATIVE STUDY OF INDUCED INCREASES IN PROXIMAL RECOMBINATION INDROSOPHILA MELANOGASTERFEMALES

Hayashi¹,

Suzuki²

1968

Can. J. Genet. Cytol.

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T . SUZURI L)epnrt.//zent of Zoology, U7ziversity of Uritisl~ Cohl71zbin, V~~Z C O~L Z~T , B.C.Crossing ovcr was studicd in Drosopbiln 711clnnognster fenlales bet\vcen f -cnr -170' -Dp(y+) on the X chromosome. hlitomycin C and y-rays incrcar.ed crossing over in all ~h r c c regions, increased nondisjunction and affected meiotic as well as gonial cells. Temperature was recombinagcnic only in thc cnr -00' regions and the autosomal inversions (331 and Ubr':' increased crossing over in both regions containing euchromatin (f -cnr and cm--00') . Actinon~ycin D-treatment rcsulted in a slight decrease in crossing orcr. T h e data indicate that there may be two gcncral classes of rccombinagcns, those that affect crossing ovcr in prosimal euchromatin and thosc \\~hich in addition, induce brcalcs in hcterocliromatin. I~ltrocluctionIncreases in crossing over induced in D~osophila 77zela7zogaste~ by recombinagenic agents are invariably most striking in the proximal regions of thc major cl~romosomes. O n the-basis of a similarity in the patterns of increases induced by diverse agents (actinomvcin D, radiafion, chromoson~e aberration) around the centromcre of c h r o m o s o~e 3, it has been suggested that these aoents ? increase crossing over in that region through the same mechnnism (Suzulu and Parry, 1961). T h c common basis of induced proximal increases has been post;latcd to result from an interference with genetic activity of prosimal loci which normally fuilctioll at the time of crossing over (Suzulti, 1963; l965a, c ) . It xvas suggested that consequent structural challges analogous to lateral loop collapse after actinomycin D trcatmcnt or X-irradiation (Izawa, Allfrej? and ALirslty, 1963; fileyer and Hess, 196.5; Hess, 1965) now permit the intimaic synapsis ileccssary fop crossing over to occur.T h e esperiments reportcd here xvcre dcsigncd to determine whether a number of different rccombinagcnic factors do indeed act on all proximal regions in a qualitatively silnilar manner. Since proximal increases induced in thc S cl~rornosome by the prcsencc of autosomal inversions appear to be collfillcd to cuchromatic rcoions adjaccnt to heterochromatin (Roberts, 1965), s recombination was determined in both cucl~ron~atic and heterochromntic segments. Methods a i d MaterialsCrossing over was mensurcd in the X cl~romosome using the followillg inar1;crs (Bridgcs and Urchme, 1944) : y -yclloxv 0.0, f -forlted 56.7, carcaranation 62. j, hb' -bobbcd-lethal 66.0, f i p (l;l)scH, y' -a duplication of 91' to the right of thc ccntromcrc. T h e f-car region was designated as 1, thc car-bb' region as 2 and bb' -y-as 3. Region 1 is completely euchron~atic, rcgion 2 a composite of euchrornatin and l~etcrochron~atin and region 3 is con~plctelv hetcrochron~atic. All fcmalcs tested had an X-cl~ron~osome gcnotx pe of y-+ car + .y+/y f + bb', and werc crosscd to 117 ( I ) p~~1 ' 2 ' , 1~~""/ybb' rnalcs. Only ~nale progeny were scored and it was found that no males carrying 611' on both the S and Y dl~romosomes survived.

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“…These results indicate that eql is located between px and sp, at a map location of 2-104.5 (Fig. 11, within 95% confidence limits of 20.7 map units (after correction for map expansion at low temperature) [see Plough, 1917;Graubard, 19331. We were also able to test a subset of the above recombinant chromosomes for the presence or absence of the bw mutation.…”

Section: Genetic Map Location Of Eqzmentioning

confidence: 86%

Genetic mosaic analysis of the equatorial‐less mutation in Drosophila mezunogaster

Fryxell

Wood

1995

Dev. Genet.

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eql (equatorial-less) is a recessive lethal mutation on the second chromosome of Drosophila melanogaster. J. Campos-Ortega found that eql clones in somatic mosaic flies have reduced numbers of photoreceptor cells, and he suggested that only the R1, R6, and R7 photoreceptor cells were missing in this mutant. These photoreceptor cells help to define the inverted orientation of ommatidial facets along the equatorial midline of the fly eye, hence the mutation was named "equatorial-less." We have conducted a detailed analysis of the eql mutation, by serial section reconstruction of eql clones marked with bw- or w- in somatic mosaic flies. We found that all photoreceptor cell types (R1-R8) could be deleted by the eql mutation, and in rare cases the number of photoreceptor cells was increased. The apparent lack of photoreceptor cell type specificity was confirmed by our analysis of genetically mosaic facets, which indicated that no single photoreceptor cell, or subset of photoreceptor cells, was uniquely required to express eql+. Rather, eql appears to function in all photoreceptor cells, and possibly in all eye precursor cells. The distribution of photoreceptor cell numbers in w eql facets was consistent with the hypothesis that each photoreceptor cell was deleted independently of the others. The eql gene is located on the right arm of chromosome 2 at map location 2-104.5 +/- 0.7 and lies between the polytene chromosome bands 59D8 and 60A7.

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The effect of temperature on crossingover in Drosophila

Cited by 220 publications

References 10 publications

Influence of co-evolution with a parasite, Nosema whitei, and population size on recombination rates and fitness in the red flour beetle, Tribolium castaneum

Influence of co-evolution with a parasite, Nosema whitei, and population size on recombination rates and fitness in the red flour beetle, Tribolium castaneum

A COMPARATIVE STUDY OF INDUCED INCREASES IN PROXIMAL RECOMBINATION INDROSOPHILA MELANOGASTERFEMALES

Genetic mosaic analysis of the equatorial‐less mutation in Drosophila mezunogaster

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