Reciprocal translocation identified in Vigna angularis dominates the wild population in East Japan

Journal of Plant Research
Lixia WangNorihiko Tomooka

Abstract

Using an F2 population derived from cultivated and wild azuki bean, we previously detected a reciprocal translocation and a seed size QTL near the translocation site. To test the hypothesis that the translocation in the cultivated variety contributed to the larger seed size, we performed further linkage analyses with several cross combinations between cultivated and wild azuki beans. In addition, we visually confirmed the translocation by cytogenetic approach using 25 wild and cultivated accessions. As a result, we found the translocation-type chromosomes in none of the cultivated accessions, but in a number of the wild accessions. Interestingly, all the wild accessions with the translocation were originally collected from East Japan, while all the accessions with normal chromosomes were from West Japan or the Sea of Japan-side region. Such biased geographical distribution could be explained by the glacial refugium hypothesis, and supported narrowing down the domestication origin of cultivated azuki bean.

References

Nov 1, 1984·Proceedings of the National Academy of Sciences of the United States of America·K G WimanW S Hayward
Feb 24, 2001·The Journal of Heredity·K D LivingstoneM K Jahn
Oct 16, 2003·Genomics·Choong Gon KimNaruya Saitou
Mar 12, 2004·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·X W WangD A Vaughan
Sep 30, 2005·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·O K HanD A Vaughan
Aug 26, 2006·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·B ChaitiengD A Vaughan
Feb 5, 2008·Genetics·Akito KagaDuncan A Vaughan
Sep 6, 2008·Genome Génome / Conseil National De Recherches Canada·H X XuD A Vaughan
Oct 1, 2010·Annals of Botany·Takehisa IsemuraDuncan Alexander Vaughan
Oct 19, 2010·Nucleic Acids Research·Masaru TakeyaMakoto Kawase
Oct 1, 1994·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·C J LiuM D Gale

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