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Journal ArticleDOI

Cyto-genetical investigations in some common cucurbits, with special reference to fragmentation of chromosomes as a physical basis of speciation.

P N Bhaduri, +1 more
- 01 Aug 1947 - 
- Vol. 48, Iss: 2, pp 237-256
TLDR
Are sex chromosomes in higher pl,~nt~ nucleologenic?
Abstract
Introduction . M~t~rial and methods 0 bservations: Cucumis a~giz,u~ . Cucumis Memo Trichoaanth~ diolca Luffa aegyp~i~c,a . Luffa a~u~an~u~a . 6'o~iuia indica Beuincasa cerifera M~,mrdica cllarantia Cucurbita ~r~aarima Polysomaty Discussion (i) Numerica! correlation between m a~m um number ofnucleoli, sat~llltes and secondary constrictions (ii) Maximum number of nucleo]i ,lnd nucleolar constrictions of chromosomes witah reference to polyplcidy and aneuploidy . . . {iii) Variation of chromosome number in Cucm.bitaceac and R~. cytogsnetic interpretation (iv} Are sex chromosomes in higher pl,~nt~ nucleologenic? . Summary P, efsrsnces P A G ~

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References
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Journal ArticleDOI

The relation of a particular chromosomal element to the development of the nucleoli in Zea mays

TL;DR: The nucleolus is organized in the telophase through the activity of a distinct deep-staining body having a definite position in one chromosome (the satellited chromosome) of the monoploid complement through a reciprocal translocation which broke this body into two parts.
Journal ArticleDOI

Die Ursache der gesetzmässigen Zahl, Lage, Form und Grösse pflanzlicher Nukleolen

E. Heitz
- 01 Feb 1931 - 
TL;DR: The physiological meaning of the nucleoli still remains one of the most obscure questions of the cytology as discussed by the authors, even after more than 100 years of the discovery of the Nukleolus.
Journal ArticleDOI

Chromosome Studies in Some Dioecious Plants, with Special Reference to the Allosomes

TL;DR: The chromosomes of the male plants of 17 genera, 22 species and 2 varieties of dioecious phanerogams have been investigated and the following 13 forms show each an unequal pair of chromosomes in addition to autosome pairs at the meiotic division in microsporocytes.
Journal ArticleDOI

The origin of iso-chromosomes

TL;DR: The misdivision and the origin of the iso-chromosome are each likely to be important as affecting the genetic structure of the chromosome and the mechanical properties of the centromere.
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The genome of the cucumber, Cucumis sativus L.

Sanwen Huang, +95 more
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