Identification of a family of repeated sequences on the rye B chromosome
Keyword(s):
A novel family of highly repeated sequences on the B chromosome of rye (Secale cereale) has been identified. The D1100 family has not been detected on the rye A chromosomes and shows little or no homology to any previously described repeat sequence in rye. In addition, different rye species, and different B chromosomes within the same species, show significant heterogeneity in the arrangement of the D1100 sequences. An EcoRI clone of a member of the family has been obtained. These results provide direct evidence for the organisation and nature of the B-chromosome DNA in rye, and they are discussed in relation to the origin and evolution of rye B chromosomes.Key words: B chromosome, Secale cereale, repeated sequences.
Keyword(s):
2013 ◽
Vol 85
(4)
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pp. 1371-1377
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Keyword(s):
2014 ◽
Vol 31
(8)
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pp. 2061-2072
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