Journal
MOLECULAR BREEDING
Volume 9, Issue 4, Pages 251-257Publisher
KLUWER ACADEMIC PUBL
DOI: 10.1023/A:1020361424758
Keywords
Dioecious; Gender; Mercurialis annua; RAPD; SCAR
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Male specific Random Amplified Polymorphic DNA (RAPD) markers, OPB01-1562 and OPC07-303, were identified and sequenced in dioecious Mercurialis annua. Sequence Characterized Amplified Region (SCAR) primers were designed. Several internal segments of OPB01-1562 were amplified as male specific SCAR markers. These markers were PCR amplified from strong, intermediate and weak male subtypes selected according to their resistance to feminization by cytokinin. Nucleotide sequence of OPB01-1562 isolated from three male subtypes were near identical. The OPB01-1562 and derived SCAR markers were absent in females as well as hexaploid Mercurialis male and monoecious individuals. The gender relationship of the markers was maintained in all ecotypes tested. There were 2 internal fragments of OPB01-1562, which were PCR amplified from all genotypes of diploid and hexaploid Mercurialis. It is argued that identification of gender specific DNA suggests a dimorphic differentiation of the genome of dioecious Mercurialis annua.
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