A method of integrating one or more exogenous nucleic acid sequences into the genome of a plant cell, the method comprising: introducing the one or more exogeneous nucleic acid sequences into the plant cell, wherein the exogenous nucleic acid sequences include one or more regions of homology with a Zp15 gene; and cleaving a double-stranded sequence in an endogenous Zp15 gene in the genome of the plant cell using at least one fusion protein comprising a cleavage domain and a zinc finger protein comprising the recognition helix regions as shown in a single row of Table 1, thereby resulting in integration of a polynucleotide comprising the one or more exogenous sequences into the genome of the cell, wherein the double-stranded cleavage is made by (a) expressing a first fusion protein in the cell, the first fusion protein comprising a first zinc finger binding domain and a first cleavage half-domain, wherein the first zinc finger binding domain has been engineered to bind to a first target site in or near a Zp15 locus in the genome of the plant cell; and (b) expressing a second fusion protein in the cell, the second fusion protein comprising a second zinc finger binding domain and a second cleavage half domain, wherein the second zinc finger binding domain binds to a second target site in or near the Zp15 locus in the genome of the plant cell, wherein the second target site is different from the first target site; and wherein binding of the first fusion protein to the first target site, and binding of the second fusion protein to the second target site, positions the cleavage half-domains such that the genome of the plant cell in or near the Zp15 locus is cleaved. introducing the one or more exogeneous nucleic acid sequences into the plant cell, wherein the exogenous nucleic acid sequences include one or more regions of homology with a Zp15 gene; and cleaving a double-stranded sequence in an endogenous Zp15 gene in the genome of the plant cell using at least one fusion protein comprising a cleavage domain and a zinc finger protein comprising the recognition helix regions as shown in a single row of Table 1, thereby resulting in integration of a polynucleotide comprising the one or more exogenous sequences into the genome of the cell, wherein the double-stranded cleavage is made by (a) expressing a first fusion protein in the cell, the first fusion protein comprising a first zinc finger binding domain and a first cleavage half-domain, wherein the first zinc finger binding domain has been engineered to bind to a first target site in or near a Zp15 locus in the genome of the plant cell; and (b) expressing a second fusion protein in the cell, the second fusion protein comprising a second zinc finger binding domain and a second cleavage half domain, wherein the second zinc finger binding domain binds to a second target site in or near the Zp15 locus in the genome of the plant cell, wherein the second target site is different from the first target site; and wherein binding of the first fusion protein to the first target site, and binding of the second fusion protein to the second target site, positions the cleavage half-domains such that the genome of the plant cell in or near the Zp15 locus is cleaved. (a) expressing a first fusion protein in the cell, the first fusion protein comprising a first zinc finger binding domain and a first cleavage half-domain, wherein the first zinc finger binding domain has been engineered to bind to a first target site in or near a Zp15 locus in the genome of the plant cell; and (b) expressing a second fusion protein in the cell, the second fusion protein comprising a second zinc finger binding domain and a second cleavage half domain, wherein the second zinc finger binding domain binds to a second target site in or near the Zp15 locus in the genome of the plant cell, wherein the second target site is different from the first target site; and wherein binding of the first fusion protein to the first target site, and binding of the second fusion protein to the second target site, positions the cleavage half-domains such that the genome of the plant cell in or near the Zp15 locus is cleaved.