WebFeb 22, 2024 · Wild barley forms a two-rowed spike with a brittle rachis whereas domesticated barley has two- or six-rowed spikes with a tough rachis. Like domesticated barley, ‘agriocrithon’ forms a six-rowed spike; however, the spike is brittle as in wild barley, which makes the origin of agriocrithon obscure. Haplotype analysis of the Six-rowed spike … WebMar 17, 2015 · Inheritance and genetic mapping of the ligulelessness, tough rachis and non-glaucous phenotypes. The gene for the dominant liguleless phenotype was named Lg t (L …
Rachis - an overview ScienceDirect Topics
WebFeb 17, 2024 · However, the tough rachis of domesticated forms of emmer wheat suppressed seed dispersal and self-planting and made grain harvesting feasible. Hence, the target transformation of spikes from Br to non-Br was constantly conducted by early farmers for more than one thousand years, symbolizing the first trait of domestication in wheat [ … WebJul 1, 2005 · Metzger andSilbaugh (1968/1969) noted that the rachis of KU2086 was tough. Watanabe et al. (2005) and Li and Gill (2006) mapped a tough rachis mutant gene in Ae. … storckshof
Segregation of brittle and tough rachis plants in F 2 populations
WebThe brittle rachis was dominant to the tough rachis, and was controlled by a single gene (Fig. 3). In the cross of semi-wild wheat with T. aestivum spp. spelta, ... WebSep 16, 2008 · In many crops only one tough rachis mutant is known, supporting a single origin on this evidence, although barley is an unusual case in that two mutants are known (12, 13). The second line of inquiry has considered the reduction in genetic diversity associated with the domestication bottleneck. WebJun 3, 2024 · The domestic forms of rye have larger seeds than wild forms as well as a non-shattering rachis (the part of the stem that holds the seeds onto the plant). Wild rye is free … rose gold foil eyeshadow