Atlas of Mammalian Chromosomes by Stephen J. O'Brien (Editor), Joan C. Menninger (Editor),

By Stephen J. O'Brien (Editor), Joan C. Menninger (Editor), William G. Nash (Editor)

A beautiful visible selection of the banded metaphase chromosome karyotypes from a few 850 species of mammals, the Atlas of Mammalian Chromosomes represents an unabridged compendium of the country of this genomic paintings shape. Bringing jointly details at the moment scattered during the cytogenetics literature for ratings of released and unpublished species, this atlas beneficial properties fine quality karyotype photos for almost each mammal studied so far, making it the main finished assemblage of high-resolution chromosome photos available--a seriously worthwhile source for cutting-edge comparative genomics era.For each to be had species, the Atlas of Mammalian Chromosomes offers the simplest karyotype produced, the typical and Latin identify of the species, the broadcast quotation, and the contributing authors. such a lot karyotypes are G-banded, revealing the chromosomal bar codes of homologous segments between comparable species.Addressing the mandate of the Human Genome undertaking to annotate the genomes of alternative organisms to boot, the Atlas of Mammalian Chromosomes bargains a breakthrough in our figuring out of species formation, of genome association, and of DNA script for usual choice. it really is a useful source for geneticists, mammalogists, and biologists attracted to comparative genomics, systematics, and chromosome constitution.

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Both species are relatively common, although the platypus is considered to be vulnerable because of riverbank erosion and water quality. The long beaked echidna occurs only in New Guinea, where it is highly threatened by habitat destruction and other human factors. Monotremes feature a unique mixture of mammalian, avian, reptilian, and specialized morphological and physiological features. Because of their basal evolutionary position among mammals, they are invaluable for comparative genomics. , 2004; Grützner and Graves, 2004).

It was published as an atlas by Springer-Verlag in New York HSU and Benirschke (1971; 1973; 1974; 1975; 1977). For the presentation in that atlas, however, banding cytological techniques had not been well developed, so that only in the last few years was it possible to include some chromosome-banding pictures; those studies were then just evolving. But the task of assembling annually dozens of new mammalian chromosome structures became quickly so overwhelming that we ceased the publication in 1977.

As for T. aculeatus, there is a large X1 and a small X2 chromosome, each present in two copies in females and a single copy in males. G-banding suggests homology of the Z. bruijni and T. aculeatus X1 with the platypus X1 chromosome (Wrigley and Graves, 1988b). Again, there are nine unpaired chromosomes in the male, including one large male-specific element similar to that observed in T. aculeatus. Eight chromosomes in females seem to have no homologues, but, again, this is likely to be the result of heteromorphism.

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