Cytogenetics of Five Edible Species of the Genus <i>Kaempferia</i> (Zingiberaceae) from Thailand
2024
Piyaporn Saensouk | Nooduan Muangsan | Phetlasy Souladeth | Kamonwan Koompoot | Nakorn Pradit | Anousone Sengthong | Surapon Saensouk
Five edible species of the genus <i>Kaempferia</i>—<i>K. minuta</i>, <i>K. phuphanensis</i>, <i>K. sisaketensis</i>, <i>K. takensis</i>, and <i>K. udonensis</i>—in Thailand were cytologically studied by their root tips. The somatic chromosome numbers of all species were found to be 2<i>n</i> = 22, and the FNs of all species were revealed to be 44. The karyotype of all five rare and endemic species was provided: 10m + 12sm with three satellites for <i>K. minuta</i>, 12m + 10sm with six satellites for <i>K. phuphanensis</i>, 18m + 4sm with four satellites for <i>K. sisaketensis</i>, 6m + 10sm + 6st with three satellites for <i>K. takensis</i>, and 14m + 2sm + 6st with two satellites for <i>K. udonensis</i>. This research identified all new karyological information regarding the chromosome number, FN, karyotype, and ideogram of all the species. They all had a symmetrical karyotype. The chromosome structures and karyotype formula of five edible <i>Kaempferia</i> species from Thailand can be used for species identification.
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