Authors
Chandra Bhan Yadav, Anuj, Suresh Kumar, MG Gupta, Vishnu Bhat
Publication date
2012/6
Journal
Molecular Breeding
Volume
30
Pages
239-250
Publisher
Springer Netherlands
Description
Cenchrus ciliaris reproduces by apomixis, an asexual mode of reproduction through seeds. Genetic analysis of apomixis in this species revealed that this trait is dominant and that a chromosomal region of more than 11 Mb controls this trait, which is hemizygous, heterochromatic and recombinationally suppressed. A novel F2 mapping population comprising 86 individuals segregating for apomictic and sexual modes of reproduction, generated after crossing a new set of obligate apomictic and sexual parents (IG-96-3108 and IG-96-443), was used in this study to identify a large number of amplified fragment length polymorphism (AFLP) and sequence characterized amplified region (SCAR) markers linked to these traits. Out of 180 polymorphic AFLP markers, 42 and 29 markers associated with apomixis and sexuality were mapped around Apo and Sexual loci, respectively. Markers 20G, 18G and …
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