IRIS: ALLOCYCLIC SEGMENTS AS CHROMOSOME MARKERS?

Besides the linear differentiation of chromosomes, obtained by various methods including C banding, Q-banding llild G- banding, a type of differentiation is sometimes visible after Donnal fixation and Feulgen staining. Such differential segments are found in the chromosomes of many bulbous and rhizo...

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Bibliographic Details
Main Authors: M. COLASANTE, C.G. VOSA
Format: Article
Language:English
Published: University La Sapienza of Rome 2000-04-01
Series:Annali di Botanica
Online Access:http://ojs.uniroma1.it/index.php/Annalidibotanica/article/view/9071
Description
Summary:Besides the linear differentiation of chromosomes, obtained by various methods including C banding, Q-banding llild G- banding, a type of differentiation is sometimes visible after Donnal fixation and Feulgen staining. Such differential segments are found in the chromosomes of many bulbous and rhizomatous Iris species and appear to be species and population specific. Chromosome analysis of several Irises has shown that there is some variation in the length and distribution of the AC-segmenl~ in different species and occasionally also in different populations of the same homeologous chromosomes. Therefore the AC-segments could be used as markers Lo eluddate the ancestry ofIris natural hybrids.
ISSN:0365-0812
2239-3129