Lotus burttii takes a position of the third corner in the lotus molecular genetics triangle

DNA Res. 2005 Feb 28;12(1):69-77. doi: 10.1093/dnares/12.1.69.

Abstract

In order to consolidate molecular genetic system in Lotus japonicus and to further access the biological diversity in Lotea, we introduce here Lotus burttii B-303 derived from West Pakistan as the third crossing partner of the Gifu ecotype (B-129-S9) for a genetic analysis. L. burttii is a relatively small and early flowering plant with non-shattering behavior. The general chromosome morphology is very similar to Gifu, and fluorescence in situ hybridization (FISH) analysis revealed that the short arm of chromosome 1 in L. burttii is comparable to that of Gifu, indicating that the translocation event involving chromosomes 1 and 2, which was observed in L. japonicus Miyakojima MG-20, is not present in L. burttii. In addition L. burttii has a higher level of DNA polymorphism compared to Gifu and MG-20 enabling design of codominant markers such as SSR, CAPS and dCAPS. Using an F2 population from a cross between Gifu and L. burttii, codominant makers that co-segregated at the translocation site could be expanded. In order to normalize the genetic background, L. burttii was inbred for nine generations and the germplasm L. burttii B-303-S9 was established.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Base Sequence
  • Chromosome Mapping
  • Crosses, Genetic
  • DNA, Plant / genetics
  • Genes, Plant
  • Genetic Linkage
  • Genetic Markers
  • In Situ Hybridization, Fluorescence
  • Lotus / classification
  • Lotus / genetics*
  • Molecular Biology
  • Molecular Sequence Data
  • Polymorphism, Genetic
  • Translocation, Genetic / genetics

Substances

  • DNA, Plant
  • Genetic Markers