What is the ploidy of grapes?

Grapes (Vitis vinifera) are typically diploid, which means they have two sets of chromosomes, totaling 38 chromosomes (2n = 38). However, some grape varieties can be polyploid, exhibiting triploid (3n) or tetraploid (4n) characteristics, particularly those bred for seedless fruit. These variations in ploidy can affect traits such as fruit size, seed presence, and overall vigor.