pistachio is a nut crop domesticated in the Fertile Crescent and a dioecious species with zW sex *** sequenced the genomes of pistacia vera cultivar(cv.)Siirt,the female parent,and *** ***,the male *** chromosome-leve...
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pistachio is a nut crop domesticated in the Fertile Crescent and a dioecious species with zW sex *** sequenced the genomes of pistacia vera cultivar(cv.)Siirt,the female parent,and *** ***,the male *** chromosome-level reference genomes of pistachio were generated,and z and W chromosomes were *** zW chromosomes originated from an autosome following the first inversion,which occurred approximately 8.18 *** inversion events in the W chromosome led to the formation of a 12.7-Mb(22.8%of the W chromosome)non-recombining *** W-specific sequences contain several genes of interest that may have played a pivotal role in sex determination and contributed to the initiation and evolution of a zW sex chromosome system in *** W-specific genes,including defA,defA-like,DYT1,two pTEN1,and two tandem duplications of six VpS13A paralogs,are strong candidates for sex determination or *** history analysis of resequenced genomes suggest that cultivated pistachio underwent severe domestication bottlenecks approximately 7640 years ago,dating the domestication event close to the archeological record of pistachio domestication in *** identified 390,211,and 290 potential selective sweeps in 3 cultivar subgroups that underlie agronomic traits such as nut development and quality,grafting success,flowering time shift,and drought *** findings have improved our understanding of the genomic basis of sex determination/differentiation and horticulturally important traits and will accelerate the improvement of pistachio cultivars and rootstocks.
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