Cytogenetics of Five Edible Species of the Genus <i>Kaempferia</i> (Zingiberaceae) from Thailand
Piyaporn Saensouk,
Nooduan Muangsan,
Phetlasy Souladeth,
Kamonwan Koompoot,
Nakorn Pradit,
Anousone Sengthong,
Surapon Saensouk
Affiliations
Piyaporn Saensouk
Diversity of Family Zingibeaceae and Vascular Plant of Its Applications Research Unit, Mahasarakham University, Kantarawichai District, Maha Sarakham 44150, Thailand
Nooduan Muangsan
School of Biology, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
Phetlasy Souladeth
Faculty of Forest Science, National University of Laos, Vientiane 7322, Laos
Kamonwan Koompoot
Diversity of Family Zingibeaceae and Vascular Plant of Its Applications Research Unit, Mahasarakham University, Kantarawichai District, Maha Sarakham 44150, Thailand
Nakorn Pradit
Biodiversity Program, Walai Rukhavej Botanical Research Institute, Mahasarakham University, Kantarawichai District, Maha Sarakham 44150, Thailand
Anousone Sengthong
Faculty of Forest Science, National University of Laos, Vientiane 7322, Laos
Surapon Saensouk
Diversity of Family Zingibeaceae and Vascular Plant of Its Applications Research Unit, Mahasarakham University, Kantarawichai District, Maha Sarakham 44150, Thailand
Five edible species of the genus Kaempferia—K. minuta, K. phuphanensis, K. sisaketensis, K. takensis, and K. udonensis—in Thailand were cytologically studied by their root tips. The somatic chromosome numbers of all species were found to be 2n = 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 K. minuta, 12m + 10sm with six satellites for K. phuphanensis, 18m + 4sm with four satellites for K. sisaketensis, 6m + 10sm + 6st with three satellites for K. takensis, and 14m + 2sm + 6st with two satellites for K. udonensis. 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 Kaempferia species from Thailand can be used for species identification.
