The Cytogenetics of Non-amphidiploid Derivatives of Wheat-Rye Hybrids

Cytogenetics of Rye (Secale Spp.)

“…No explanation for these ratios was attempted. However, the possibility of such a gene transfer from one genus to another has aroused considerable interest in HN character as indicated by several authors (for instance, LOVE and CRAIG, 1919;FLORELL, 1931;OEHLER 1938;TAYLOR, 1934;KATTERMANN, 1937 and later;LEDINGHAM and THOMPSON, 1938). O'MARA (1953) points out its frequent mention in Russian literature.…”

Cytogenetic Studies on Triticale. I. A Method for Determining the Effects of Individual Secale Chromosomes on Triticum

“…Thus far all attempts to secure rye characters in wheat-like plants have been made by using the F1 hybrids in backcrosses to wheat. This method has, in some respects, proved quite practicable, as the results of LEIGHTY and TAYLOR (1924), of FLORELL (1931), of TAYLOR (1939), of KATTER-MANN (1934), (1935), (1937), (1938), and of LEDINGHAM and THOMPSON (1938) indicate. Any additions to the basic wheat complement obtained by this method may, however, consist of wheat chromosomes or chromosome pairs and not of rye, as LEDINGHAM and THOMPSON concluded from their studies on progenies of wheat-rye hybrids backcrossed to wheat.…”

Cytogenetic Studies on Triticale II

“…By continuous selfing, or by back-crossing to wheat, strains can be extracted which have a full complement of wheat chromosomes and one or two rye univalents. (Leighty and Taylor, 1924;Zalensky and Doroshenko, 1925;Florell, 1931aFlorell, 1931bOehler, 1931;Tschermak, 1931;Taylor, 1934;Kattermann, 1934Kattermann, , 1935aKattermann, , and 1935bKattermann, , 1937aKattermann, and 1937bLedingham and Thompson, 1938.) The character used as a phenotypic marker of the rye chromosome in all these experiments was that of pubescent peduncle, ("hairy neck"), a character which shows with a single dose of the chromosome.…”