A comparative study of the chromosomes of birds

Ray-Chaudhuri, Ratna; Sharma, T.; Raychaudhuri, S. P.

doi:10.1007/bf00326452

Cited by 48 publications

(37 citation statements)

References 13 publications

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“…It has been suggested that this karyotype pattern is derived from an ancestral Old World karyotype similar to the Asiatic Tanygnathus, Eclectus, Psittacula krameri and P. alexandri karyotypes through an event of robertsonian fusion between telocentric autosome pairs 6 and 7. A similar explanation has been suggested to interpret the karyotype of Psittacula cyanocephala (Ray Chaudhuri et al, 1968) which is rather similar to the Australian Platycercini karyotypes.…”

Section: Australian Speciessupporting

confidence: 73%

“…As previously exposed in the Australian regional analysis, Psittacula cyanocephala (Ray Chaudhuri et al, 1968) has a different karyotype which is very similar to the Australian Platycercini karyotype pattern. This is also the case in the Neotropical species Forpus xhantopterygius.…”

Section: Psittaculini Tribe Indo-malayan and Australian Speciessupporting

confidence: 72%

“…The karyotypes of the Tanygnathus species described in this report are very similar to Psittacula krameri, Psittacula alexandri (Ray Chaudhuri et al, 1968) and Eclectus roratus (De Lucca et al, 1991) karyotypes. This Indo Malayan Psittaculini karyotype pattern has been previously considered as the ancestral Old World parrot karyotype .…”

Section: Psittaculini Tribe Indo-malayan and Australian Speciessupporting

confidence: 69%

“…It is difficult to propose karyological relationships between this species and other parrots. On the other hand, Loriculus vernalis karyotype (Ray Chaudhuri et al, 1968) has the usual number of seven macro-autosomes, but in this case, telocentric chromosomes predominate. Both karyotypes are apparently unrelated.…”

Section: Callocephalon Fimbriatum and The Cockatoo Familymentioning

confidence: 90%

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Chromosomal Evolution in Psittaciformes. Revisited

Rus

Cigudosa

Juan

et al. 2016

IJB

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With colourful plumage, charismatic character and vocal learning abilities, parrots are one of the most striking and recognizable bird groups. Their attractiveness has drawn human attention for centuries, and members of the Psittaciformes order were, also, among the first avian species to be subject to cytogenetic studies which have contributed to understand their taxonomic and evolutionary relationships.We present here the karyological results collected by the study of thirteen parrot species new to karyology. These results are additionally supported by G banded preparations obtained in five species.The order Psittaciformes is an interesting example of a, typically, non migratory avian lineage with Gondwanaland origin, whose evolutionary radiation has been shaped by the Cenozoic geographic and climatic events that affected the land masses derived from the Gondwanaland continental split.We discuss the results of our studies, in conjunction with the previously compiled Psittaciformes cytogenetic data to delineate a picture of the chromosomal evolution of the order, concurrently with the biogeographic history of the lands in the southern Hemisphere.Considering the available data on parrot cytogenetics, a "standard parrot karyotype pattern" is proposed for evolutionary comparisons.Several biogeographic, and phylogenetically related "karyogram patterns" are also identified, and mechanisms of chromosome rearrangement that associate this patterns among them, and with the standard parrot karyotype pattern are proposed. These schemes on parrot chromosomal variation are discussed in relation to the general avian chromosome evolutionary theses proposed by cytogenetic and molecular genomic researchers.

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Section: Australian Speciessupporting

confidence: 73%

Section: Psittaculini Tribe Indo-malayan and Australian Speciessupporting

confidence: 72%

Section: Psittaculini Tribe Indo-malayan and Australian Speciessupporting

confidence: 69%

Section: Callocephalon Fimbriatum and The Cockatoo Familymentioning

confidence: 90%

See 2 more Smart Citations

Chromosomal Evolution in Psittaciformes. Revisited

Rus

Cigudosa

Juan

et al. 2016

IJB

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show abstract

“…8. The karyotype of the peacock was already described by Yamashina (1951) and Ray-Chaudhuri et al (1969). The former author reported the chromosome number of the peacock as 65 (ZO type) on the basis of the classical techinque, but the latter authors described clearly the karyotype by the modern technique applying the leucocyte culture, and demonstrated that the chromosome number of the peacock was 66 in the male and female as the ZWtype.…”

mentioning

confidence: 91%

Determination of the sex chromosome in a sex reversed peacock and its karyotype.

Yosida

Wada²,

Sakai³

et al. 1983

Proceedings of the Japan Academy. Ser. B: Physical and Biologic

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DNA base sequence heterogeneity in the order galliformes

Schultz

Church

1972

J. Exp. Zool.

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Nucleotide substitution that has occurred in the repeated DNA base sequences of several species of galliformes since their origin has been investigated by DNA/DNA hybridization. The results of competition experiments and the thermal stabilities of interspecific DNA/DNA hybrids indicate that a considerable amount of base substitution has occurred between species within the Family Phasianidae. A specific group of genes, the ribosomal RNA cistrons, have been found to be conserved relative to the average DNA base sequences. Gallus domesticus DNA shows considerable base sequence heterogeneity with respect to Phasianus colchicus DNA and is about as divergent from the other members of the Family Phasianidae as are some species outside the family.

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A comparative study of the chromosomes of birds

Cited by 48 publications

References 13 publications

Chromosomal Evolution in Psittaciformes. Revisited

Chromosomal Evolution in Psittaciformes. Revisited

Determination of the sex chromosome in a sex reversed peacock and its karyotype.

DNA base sequence heterogeneity in the order galliformes

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