Different molecular markers to identify the fertility of sugar beet monogerm germplasm resources
Research Square (Research Square)(2021)
摘要
Abstract Experiments were conducted to validate different molecular markers associated with sugar beet breeding using available sugar beet monogerm germplasm resources to explore their effectiveness in different sugar beet populations. We used multiple primer pairs to amplify sugar beet monogerm sterile and maintainer lines in order to verify their polymorphism. For the nucleus Rf1 locus genotype enzyme digestion was also required to verify. The results showed that three pairs of primers, TR1, s17 and 11E8M4S, produced polymorphism when amplifying sugar beet sterile and maintainer lines; primers o7 and AB-18, although polymorphic, did not correlate significantly with sugar beet fertility; primer cpSSR-2 did not produce significant band differences when amplifying sterile and maintainer lines, however, the number of single nucleotide sequence repeats of base A needed to be further verified as a basis for differentiating sugar beet fertility. The polymorphism of 15 pairs of primers related to sugar beet fertility identification was verified and TR1, s17 and 11E8M4S could be used to differentiate sugar beet sterile lines from the maintainer lines and used for subsequent Marker-Assisted Selection (MAS).
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关键词
germplasm,beet,different molecular markers,fertility
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