[PDF] Top 20 FILICIDAL RING-Y CHROMOSOMES IN D. MELANOGASTER
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FILICIDAL RING-Y CHROMOSOMES IN D. MELANOGASTER
... nonRS females are mated upon eclosion and brooded over a similar period. Therefore the age effect is probably related to the age of the mature oocytes rather than[r] ... See full document
14
R1 and R2 Retrotransposition and Deletion in the rDNA Loci on the X and Y Chromosomes of Drosophila melanogaster
... and Y rDNA loci: The imprecise mechanism of non- Dover 1983; Gillings et ...of D. melanogaster (Pe´rez-Gonza´lez scriptase starts at the 3⬘ end of the RNA transcript but and Eickbush ...and Y ... See full document
12
ADDITIONAL DATA ON CROSSING OVER BETWEEN X AND Y CHROMOSOMES IN DROSOPHILA MELANOGASTER
... long arm occurs to the left of the normal allele for bobbed, and should manifest non-bobbed if crossing over takes place to the right of bobbed.. Eighteen X’s without[r] ... See full document
7
NONRANDOM SEGREGATION OF CHROMOSOMES IN DROSOPHILA MALES
... Genetic analyses of Drosophila melanogaster males carrying an X chromosome with a large heterochromatic deficiency (Zns(Z)scl-sc8), and one of several differ- ent Y chromosomes, [r] ... See full document
11
UNSTABLE RING-X CHROMOSOMES DERIVED FROM A TANDEM METACENTRIC COMPOUND IN DROSOPHILA MELANOGASTER
... treme proximal region of the noninverted arm of the tandem metacentric results in the formation of viable ring-bearing sons only if they carry a Y chromosome to which this porti[r] ... See full document
14
COMPOUND CHROMOSOMES INVOLVING THE X AND Y CHROMOSOMES OF DROSOPHILA MELANOGASTER
... Chromosomes are described that have the entire euchromatic portion of the X chromosome, singly inverted, multiply inverted or in normal sequence, essen- tially inserted i[r] ... See full document
10
Surprising Differences in the Variability of Y Chromosomes in African and Cosmopolitan Populations of Drosophila melanogaster
... the Y chromosome relative to the X chro- mosome, but rarely to the degree observed in African pop- ulations (Kaiser and Charlesworth ...the Y chromosome offers few targets of purifying selection: we ... See full document
25
ORGANIZATION AND MAPPING OF A SEQUENCE ON THE DROSOPHILA MELANOGASTER X AND Y CHROMOSOMES THAT IS TRANSCRIBED DURING SPERMATOGENESIS
... T h e remarkable finding is that fragments homologous to the XDm2Ll tandem repeat are present at or near the Stellate control region on the Y chromosome.. Furthe[r] ... See full document
24
THE NATURE OF INDUCED EXCHANGES BETWEEN THE ATTACHED-X AND Y CHROMOSOMES IN DROSOPHILA MELANOGASTER FEMALES
... A com- parison of the distribution of breaks along the Y chromosome when it is involved in detachments and when it is involved in true translocations and gross deletions would r[r] ... See full document
8
Evolution of the Ribosomal DNA Spacers of Drosophila melanogaster: Different Patterns of Variation on X and Y Chromosomes
... Ribosomal spacer length variation within lines and geographic regions: T h e NTS length differences within each isofemale line are most pronounced be- tween X- and Y[r] ... See full document
8
The three-dimensional organization of polytene nuclei in male Drosophila melanogaster with compound XY or ring X chromosomes.
... T h e intranuclear position occupied by each euchro- matic locus in a polytene nucleus is not strictly deter- mined with respect to: (1) loci not closely linked to it, (2) any co[r] ... See full document
19
INTERCHROMOSOMAL EFFECTS ON CROSSING-OVER IN DROSOPHILA MELANOGASTER. I. EFFECTS OF COMPOUND AND RING X CHROMOSOMES ON THE THIRD CHROMOSOME
... The reversed acrocentric (RA) which should have a pairing configuration like two normal rod X's has the greatest interchromosomal effect of all chromosomes tested, whereas [r] ... See full document
15
NEW EVIDENCE FOR THE HOMOLOGY OF THE SHORT EUCHROMATIC ELEMENTS OF THE X AND Y CHROMOSOMES OF DROSOPHILA BUSCKII WITH THE MICROCHROMOSOME OF DROSOPHILA MELANOGASTER
... 1950, 1952). In previous investigations of D. busckii, cytological and genetical evidence was obtained pointing to the homology of the short euchromatic elements of the X and[r] ... See full document
14
THE EFFECT OF HETEROZYGOUS AUTOSOMAL INVERSIONS ON INDUCED EXCHANGES BETWEEN THE ATTACHED-X AND Y CHROMOSOMES IN DROSOPHILA MELANOGASTER FEMALES
... The significant increase in induced recombination obtained with heterologous rearrangements, in regions where, for all practical purposes, no spontaneous meiotic crossing ove[r] ... See full document
6
SPERMATOGONIAL EXCHANGE BETWEEN THE X AND Y CHROMOSOMES OF DROSOPHILA MELANOGASTER
... I t is evident that dyscentric exchange distal to the fertility factors of y9 gives rise to a bridge which, if broken a t the right and to the right of the included [r] ... See full document
21
Heterochromatin Position Effects on Circularized Sex Chromosomes Cause Filicidal Embryonic Lethality in Drosophila melanogaster
... in ring X-Y chromosomes is a major cause of mitotic instability and ...lethal ring X-Y chromosome, which induces no chromosome bridges, also contains visibly similar amounts of 359-bp ... See full document
5
TRANSLOCATIONS BETWEEN THE X AND THE Y CHROMOSOMES OF DROSOPHILA MELANOGASTER
... males were determined; the salivary chromosome break point in the X and the arm of the Y involved were also determined, and the viability of the various types of aneuploid pr[r] ... See full document
18
THE CONSTRUCTION OF RING CHROMOSOMES OF AUTOSOMAL HETEROCHROMATIN IN DROSOPHILA MELANOGASTER
... In addition to providing further confirmation for the translocation model of compound autosome formation in Drosophila oocytes, the synthesis of a second chromosome heterochromatic [r] ... See full document
7
POLYTENIZATION OF THE RIBOSOMAL GENES ON THE X AND Y CHROMOSOMES OF DROSOPHILA MELANOGASTER
... X X / Y polytene tissue, however, showed only the Y chromosome polytene pattern, indicating that genes from only one nucleolus organizer are replicated in cells contain[r] ... See full document
11
THE MEIOTIC BEHAVIOR OF REVERSED COMPOUND RING X CHROMOSOMES IN DROSOPHILA MELANOGASTER
... (2) Reversed rings and reversed acrocentrics are similar in that both have (a) a reduced frequency (or absence) of single exchanges as compared with exchanges of ranks zer[r] ... See full document
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