Wide hybridization can lead to recombination of diverse traits and creation of unique phenotypes, but the resultant hybrids are often sterile as is the case with the intersubgeneric hybrid Rhododendron L. Fragrant Affinity . Sterility in wide hybrids can either be genic or chromosomal; the latter may be overcome by induction of polyploidy, which can restore chromosome homology and fertility. Cy...

Hexaploid triticale (X Triticosecale Wittmack) is rarely used for human consumption because of its poor bread-making quality. To create the genetic potential for bread-making quality similar to that of bread wheat (Triticum aestivum L), rye (Secale cereale L.) chromosome 1R in triticale cv. Presto was cytogenetically engineered to remove secalin loci Sec-1 and Sec-3, and to introduce wheat stor...

Potato (Solanum tuberosum L.) and tomato (Lycopersicon esculentum) are members of the Solanaceae (nightshade family) and have the same basic chromosome number (x = 12). However, they cannot be cross-hybridized and, until now, it was unknown how conserved the gene order might be between these two species. We report herein the construction of a genetic linkage map of potato chromosomes based on g...