Highly GC-rich heterochromatin in chili peppers (Capsicum-Solanaceae): A cytogenetic and molecular characterization

Scientia Horticulturae(2018)

Cited 11|Views7
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Abstract
•18S-25S rDNA entire unit is the major component of the highly GC-rich constitutive heterochromatin in x = 12 Capsicum taxa.•Sequence divergence correlates with behavior of 18S-25S rDNA loci (NORs or heterochromatinized).•Accumulation and dispersion of 18S-25S rDNA were major forces that drove the karyotype evolution in x = 12 Capsicum taxa.
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Key words
18S-25S rDNA,Nucleolar organizer regions,Fluorescence in situ hybridization,Evolution
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