An isolated, synthetic, or recombinant nucleic acid comprising (a) a nucleic acid sequence having a sequence identity of at least 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or greater or 100% identical to SEQ ID NO: 77, over a region of at least 950, 1000, 1050, 1100, 1150 or more remains, or the full length of a gene or a transcript, in which the nucleic acid encodes at least one polypeptide having a pectate lyase activity； (b) a nucleic acid sequence comprising a sequence as set forth in SEQ ID NO: 77； (c) a nucleic acid sequence encoding a polypeptide having a sequence as set forth in SEQ ID NO: 78, SEQ ID NO: 132 or SEQ ID NO: 134； (d) a sequence that hybridizes under stringent conditions with a nucleic acid comprising SEQ ID NO: 77, SEQ ID NO: 131 or SEQ ID NO: 133, wherein the nucleic acid encodes a polypeptide having an activity of pectate lyase, in which the stringent conditions include a washing step comprising a washing in 0.2X SSC at a temperature of about 65 ° C for about 15 minutes； (e) the nucleic acid of (a), (b), (c) or (d) that encodes a lycta pectate but lacks a signal sequence, a prepro domain, or a combination thereof； (f) the nucleic acid of (a), (b), (c), (d) or (e) that encodes a lycta pectate but also has a heterologous sequence； or (g) a complementary sequence with (a), (b), (c), (d), (e), or (f).Un ácido nucleico aislado, sintético, o recombinante que comprende (a) una secuencia de ácidos nucleicos que tiene una identidad de secuencia de al menos un 90 %, 91 %, 92 %, 93 %, 94 %, 95 %, 96 %, 97 %, 98 %, 99 %, o superior o que es idéntica en un 100 % a la SEC ID Nº: 77, sobre una región de al menos 950, 1000, 1050, 1100, 1150 o más restos, o la longitud completa de un gen o de un transcrito, en la que el ácido nucleico codifica al menos un polipéptido que tiene una actividad de pectato liasa； (b) una secuencia de ácidos nucleicos que comprende una secuencia como se establece en la SEC ID Nº: 77； (c) una secuencia de ácidos nucleicos qu
