Cytogenetic study of five species of medicinal plants from Maha Sarakham Province, Thailand

Abstract

Abstract. Saensouk S, Saen-in N, Saensouk P. 2022. Cytogenetic study of five species of medicinal plants from Maha Sarakham Province, Thailand. Biodiversitas 23: 3593-3603. The cytogenetic study of five species of medicinal plants, namely Butomopsis latifolia (D. Don) Kunth, Iris domestica (L.) Goldblatt & Mabb., Limnocharis flava (L.) Buchenau, Murdannia loriformis (Hassk.) R.S. Rao & Kammathy, and Pontederia hastata L. from Maha Sarakham Province, northeastern Thailand was conducted. This study aimed to investigate the chromosome numbers, fundamental number (NF), karyotype forms, and perform ideogram analysis of the five species. The cytogenetic characteristics, including the chromosome number, karyology (fundamental number (NF), karyotype formula), symmetrical karyotype, chromosome size, relative length (RL), centromeric indexes (CI), and ideograms of B. latifolia (D. Don) Kunthwere studied for the first time. The chromosome numbers of five medicinal plant species were reported as 2n = 14 (B. latifolia (D. Don) Kunth)- 80 (I. domestica (L.) Goldblatt & Mabb.). Moreover, the NF had 28 (B. latifolia (D. Don) Kunth) - 80 (Iris domestica). Two species (M. loriformis(Hassk.) R.S. Rao & Kammathyand P. hastata L.) were recognized as having symmetrical karyotypes. Three species, namely B. latifolia (D. Don) Kunth, Iris domestica, and L. flava(L.) Buchenau were reported as having asymmetrical karyotypes. Chromosomes of large size (L), chromosomes of medium size (M), and chromosomes of small size (S) were observed. Ideograms of five species were provided in this study. The NF, RL, CI, chromosome size, and ideograms of all species were reported for the first time in this study. The karyotype formulae of the five species, except the karyotype formula of P. hastata L., differed from those previously studied. The cytogenetic data of the five species in this study can be used for identification.

New species of the dancing semislug Cryptosemelus Collinge, 1902 (Eupulmonata, Ariophantidae) from Loei Province, northeastern Thailand with a key to genera of mainland Southeast Asian semislugs and a key to species of the genus

“…Since 2007, an intensive survey on land snail diversity in limestone and non-limestone hills in northeastern Thailand has been continuously conducted and published ( Tumpeesuwan 2007 ; Tumpeesuwan and Tumpeesuwan 2010a , 2010b ; Srihata et al 2010 ; Tanmuangpak et al 2012 ; Jumlong et al 2013 Tumpeesuwan et al 2014 ; Tanmuangpak 2016 ; Sasang 2019 ; Nahok 2020 ). In total, 16 species have been described as new to science, comprising 11 species from limestone hills, four species from sandstone hills, and one species from volcanic hills ( Tumpeesuwan and Tumpeesuwan 2014 , 2017 , 2019a , 2019b ; Tanmuangpak et al 2015 , 2017 ; Nahok et al 2020 , 2021a , 2021b ; Deeprom et al 2022 ; Tanmuangpak and Dumrongrojwattana 2022 ; Tongkerd et al 2023 ).…”