The chromosomal location of the embryo plus scutellum alcohol dehydrogenase isozymes in the hexaploid wheat kernel

✍ Scribed by J. Salinas; M. Pérez Vega; C. Benito

• Publisher: Springer
• Year: 1981
• Tongue: English
• Weight: 407 KB
• Volume: 30
• Category: Article
• ISSN: 0014-2336
• DOI: 10.1007/bf00038801

✦ Synopsis

Analysis of individual parts of Triticum aestivum L. and T. turgidum var. durum kernels showed two classes of alcohol dehydrogenase patterns: 1) A three banded pattern (ADH-1, ADH-2 and ADH-3) for endosperm (Ed) and 2) a seven banded pattern (ADH-Fl, ADH-F2, ADH-l,ADH-2, ADH-3, ADH-Sl and ADH-S2) for embryo (E), scutellum (S) and embryo plus scutellum (E + S). The use of nullitetrasomic and ditelosomic series of Chinese Spring wheat allows alcohol dehydrogenase to be associated with arms 4Ac(, 4BL and 4DS. A live subunit forming dimer hypothesis is postulated to explain the newly reported seven isozyme pattern. Subunits a, S and 6 are coded by chromosome arms 4Aa, 4BL and 4DS respectively, and the newly postulated E and y are coded also by chromosome arm 4BL.