Microchromosomes, once considered unimportant shreds of the chicken genome, are gene-
rich elements with a high GC content and few transposable elements. Their origin has been …

Birds (Aves) are the most speciose of terrestrial vertebrates, displaying Class-specific
characteristics yet incredible external phenotypic diversity. Critical to agriculture and as …

In last 100 years or so, much information has been accumulated on avian karyology,
genetics, physiology, biochemistry and evolution. The chicken genome project generated …

Pelecaniformes is an order of waterbirds that exhibit diverse and distinct morphologies. Ibis,
heron, pelican, hammerkop, and shoebill are included within the order. Despite their …

Simple Summary Detailed chromosome studies of birds, addressing both
macrochromosomes and microchromosomes, have been reported only for few species …

Simple Summary Numerous tiny (micro) chromosomes are a characteristic feature
associated with birds, being found in smaller numbers in other organisms and absent in …

Simple Summary All Poropuntiinae fish species are diploid and have 50 chromosomes in
their cells; however, their karyotypes differ (the organization of chromosomes according to …

Although molecular information for the wood stork (Mycteria americana) has been well
described, data concerning their karyotypical organization and phylogenetic relationships …

The phylogenetic position and taxonomic status of Rhynchocyclidae (Aves: Passeriformes)
have been the subject of debate since their first description. In most models …

Abstract Despite being quite specious (~ 10,000 extant species), birds have a fairly uniform
genome size and karyotype (including the common occurrence of microchromosomes) …