EurekaMag
+ Translate
+ Most Popular
Investigations on the organic drift in North Swedish streams
Limitations of Using Microsoft Excel Version 2016 (MS Excel 2016) for Statistical Analysis for Medical Research
Phloem necrosis of coffee in Surinam
Anatomy of Mystus seenghala IV Nervous system
Integrated farming system for gardenland conditions of Coimbatore district - an over view
Tetrapleure (Tetrapleura tetraptera), an unknown African medicinal and spice plant
The origin and phylogenetic significance of the trochophoran larvae 2. evolutionary significance of the larvae of coelomate worms and mollusks
Comparison of rice bran and maize bran as feeds for growing and fattening pigs
Enterobacter amnigenus. An unusual human pathogen
Influence of Seriboost foliar application on leaf yield and leaf protein content in mulberry (Morus spp.), in relation to silkworm cocoon production
The identity of the lipstick mold of cultivated mushrooms agaricus bisporus
Advantages and disadvantages of bordeaux mixture and of lime-sulphur used on apples in the growing season
'Pan-sukh' disease of Rice in the Central Provinces
Geological age of the Ptilophyllum flora; a critical reassessment
Study of vitellogenesis in birds; physiological phases & role of folliculin in vitellogenesis
Evaluation of WCT coconut and Komadan coconut
Therapy for acne with saccharomyces boulardii
Evidence for Late Cretaceous N-S dextral shear in the west-central crystalline core, North Cascades, Washington
'Rajeshwari' - a high-yielding white seeded variety of sesame for Andhra Pradesh
Manufacture of Ricotta cheese from whey fortified with skim milk powder using different acidulants
Occurrence of Eutrichophilus mexicanus (Rudow, 1866) and Eutrichophilus lobatus (Ewing, 1936) (Phthiraptera: Trichodectidae) on Sphiggurus villosus (Cuvier, 1825) (Rodentia: Erethizontidae) in Rio de
Factors affecting fruitfulness in durian (Durio zibethinus Murr.). I. Flowering and pollination
Bronchial cuff pressure change caused by left-sided double-lumen endobronchial tube displacement
Some Biological Applications of Organometallic Compounds
The composition of pampas-grass (Cortaderia argentea.)

Cytogenetic analysis shows that the unusually large chromosome in the sex-limited pB silkworm (Bombyx mori) strain consists of three chromosomes


Cytogenetic analysis shows that the unusually large chromosome in the sex-limited pB silkworm (Bombyx mori) strain consists of three chromosomes



Hereditas 133(2): 95-103



ISSN/ISBN: 0018-0661

PMID: 11338434

We have discovered an inordinately large chromosome pair at the pachytene stage in the oocyte of the sex-limited pB (black larval marking) silkworm (Bombyx mori) strain (TWPB). We have analyzed the composition and arrangement of this large chromosome. A genetic linkage analysis shows that the large chromosome is made up of the W chromosome, the second chromosome fragment (pB fragment), and the fifth chromosome (linkage group) containing at least the region from map position 0.0 to 40.8. We also observed a sex heterochromatin body (SB) that we deduced to be made up of condensed W chromosomes. The number of SBs in each female nucleus among the sucking stomach cells of the TWPB strain was variable. Evidently, the W chromosome of the TWPB strain is attached to another chromosome. The composition of the W chromosome, the second chromosome fragment, and the fifth chromosome was studied through linkage analysis for these three chromosomes. We used two strains derived from the TWPB strain, the sex-limited pM (moricaud larval marking)-like (TWPML) and the autosomal pM-like (T5PML). The results show that the TWPML strain originates through a detachment of the fifth chromosome from the large chromosome of the TWPB strain, and the T5PML strain originates through a detachment of the W chromosome from that. Accordingly, the large chromosome of the TWPB strain is arranged in the order W chromosome--second chromosome fragment--fifth chromosome.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 045693960

Download citation: RISBibTeXText

Related references

Cytogenetic analysis shows that the unusually large chromosome in the sex-limited pB silkworm (Bombyx mori) strain consists of three chromosomes. Hereditas Landskrona 133(2): 95-103, 2000

Detachment analysis of the translocated W chromosome shows that the female-specific randomly amplified polymorphic DNA (RAPD) marker, female-218, is derived from the second chromosome fragment region of the translocated W chromosome of the sex-limited p(B) silkworm (Bombyx mori ) strain. Hereditas 138(2): 148-153, 2003

Action of the attached chromosome fragment translocated on the W chromosome in the mottled strain screened from sex-limited p-B silkworm, Bombyx mori. Journal of Sericultural Science of Japan 66(3): 212-214, 1997

Breakage and subsequent return for W chromosome-pB fragment-fifth linkage group fusion chromosome in the sex-limited pB silkworm strain , Bombyx mori. Journal of Sericultural Science of Japan 69(5): 327-330, 2000

Defects and structure of translocated chromosome in the sex limited yellow cocoon strain of the silkworm bombyx mori. Journal of Sericultural Science of Japan 56(3): 240-246, 1987

M chromosome of the wild silkworm, Bombyx mandarina (n = 27), corresponds to two chromosomes in the domesticated silkworm, Bombyx mori (n = 28). Genome 47(1): 96-101, 2004

Defects, structure and breakage of translocated chromosome in the sex-limited yellow cocoon strain of the silkworm, Bombyx mori. JARQ (Japan Agricultural Research Quarterly): 221: 57-63, 1988

Mutagenesis of the translocation between z and w chromosomes and analysis of the gene constitution of translocated chromosome in the silkworm bombyx mori. Acta Genetica Sinica 13(1): 48-55, 1986

The effect of W chromosome origin on sex-chromosome pairing in ZZWW tetraploid females of the domesticated silkworm, Bombyx mori, and the congenic wild silkworm, Bombyx mandarina. Genetica 114(1): 89-94, 2002

The female-killing chromosome of the silkworm, Bombyx mori, was generated by translocation between the Z and W chromosomes. Genetica 127(1-3): 253-265, 2006

Identification of the attached chromosome in sex-limited normal marked silkworm, Bombyx mori. Sanshi Konchuu Biotec (journal Of Insect Biotechnology And Sericology): 2, 145-151, 2008

Detachment analysis of the translocated W chromosome shows that the female-specific randomly amplified polymorphic DNA marker, Female-218, is derived from the second chromosome fragment region of the translocated W chromosome of the sex-limited pB silkworm strain. Hereditas (Lund) 138(2): 148-153, 2003

Cytogenetic analysis of ZZWW triploid silkworm (Bombyx mori). Acta Sericologica Sinica 29(1): 43-46, 2003

Arginine kinase is highly expressed in a resistant strain of silkworm (Bombyx mori, Lepidoptera): Implication of its role in resistance to Bombyx mori nucleopolyhedrovirus. Comparative Biochemistry and Physiology. Part B Biochemistry and Molecular Biology 158(3): 230-234, 2011

Identification of random amplified polymorphic DNA on the W chromosome of the Chinese 137 strain of the silkworm, Bombyx mori. Journal of Sericultural Science of Japan 64(1): 19-22, 1995