Identification of reciprocal translocations observed in several Melilotus species (subgenus Eumelilotus) by interspecific triple crossings

Masahiko Maekawa, Hasen, Fumiji Kita

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Melilotus alba differs by a reciprocal translocation from 7 other species which are categorized into M. officinalis and M. dentata groups. The two species groups, however, remained to be studied in relation to their cytological relations because of early degeneration of hybrid embryo. Interspecific triple crosses were successfully made in order to examine whether or not the reciprocal translocations observed were of the same origin. When F1 hybrids between M. alba and M. officinalis group were crossed with M. dentata group, about a half of hybrids plants were heterozygous for a reciprocal translocation while the remaining plants were normal chromosome pairing, showing a segregation ratio of 1:1. This result indicates that reciprocal translocations observed among the three groups are of the same origin. Accordingly, it is expected that M. officinalis group and M. dentata group have the same chromosomal constitutions.

Original languageEnglish
Pages (from-to)255-261
Number of pages7
JournalEuphytica
Volume54
Issue number3
DOIs
Publication statusPublished - May 1 1991

Keywords

  • Eumelilotus
  • Melilotus ssp.
  • cytological relationship
  • interspecific triple crossing
  • reciprocal translocation
  • yellow sweetclover

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Genetics
  • Plant Science
  • Horticulture

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