Abstract: A novel maize variety designated 8SSIX6027 and seed, plants and plant parts thereof are provided. Methods for producing a maize plant comprise crossing maize variety 8SSIX6027 with another maize plant are provided. Methods for producing a maize plant containing in its genetic material one or more traits introgressed into 8SSIX6027 through backcross conversion and/or transformation, and to the maize seed, plant and plant part produced thereby are provided. Hybrid maize seed, plants or plant parts are produced by crossing the variety 8SSIX6027 or a locus conversion of 8SSIX6027 with another maize variety.

Abstract: Compositions and methods are provided for large scale manipulation of genomic regions and chromosomal engineering of plant genomes. Portions of chromosomes may be deleted, translocated, duplicated or inverted, which are useful for various applications in plant breeding programs that relate to recombination, crossovers, and genetic gain. Site-specific directed DNA breaks enhance targeted recombination frequencies, crossover efficiency and movement of large chromosomal segments in crop plant cells. CRISPR-Cas systems enable targeted chromosomal engineering of crop plants.