Chromosome numbers of some Asteraceae species from Universitas Indonesia Campus, Depok, Indonesia

Abstract

Salamah A, Oktarina R, Ambarwati EA, Putri DF, Dwiranti A, Andayani N. 2018. Chromosome numbers of some Asteraceae species from Universitas Indonesia Campus, Depok, Indonesia. Biodiversitas 19: 2079-2087. Asteraceae is the largest plant family, comprising of more than 1,600 genera and 23,000 species with a worldwide distribution. Many species of Asteraceae are found to be very significantly abundant in a range of habitats and are used as sources of medicines, food, forage, and other useful products. Many cytological studies have been carried out on Asteraceae. However, information about the chromosome numbers of Asteraceae in Indonesia is still very limited. In this study, the chromosome numbers of 15 species of Asteraceae found around the Universitas Indonesia campus were counted. For chromosomal preparations, the root/shoot tips were pretreated with 2 mM 8-hydroxyquinoline, stained with aceto-orcein, prepared using the squash method, and then observed with a microscope. Of the 15 species, 12 showed variation in chromosome numbers: Cosmos caudatus, Elephantopus scaber, Tridax procumbens, Mikania micrantha, Sphagneticola trilobata, Ageratum conyzoides, Cyanthillium cinereum, Chromolaena odorata, Synedrella nodiflora, Youngia japonica, Eclipta prostrata, and Porophyllum ruderale. The other three species showed no variation in chromosome number: Emilia sonchifolia (2n=10), Sonchus arvensis (2n=18), and Cosmos sulphureus (2n=24). We also found new variations in chromosome numbers that have not yet been listed in the Index to Plant Chromosome Numbers (IPCN).

Short Communication: Analysis of the chromosome numbers of Zinnia elegans Jacq. in single, double, and pom-pom flowers

“…and Porophyllum ruderale (2n=3x-2=28, 2n=3x+2=32, 2n=3x+3=33*, 2n=4x-4=36, 2n=4x=40) (Salamah et al 2018). According to Kashin et al (2011), mixoploidy in Asteraceae is related to the apomixis phenomenon.…”

Analisis Kromosom Tanaman Cabai Rawit (Capsicum frustescens) Terhadap Lama Perendaman Hidroksiquinolin

“…(de Paula & Ferreira Pinto-Maglio, 2015). Pemberian hidroksiquinolin pada preparate kromosom telah banyak dilaporkan pada tanaman anatalain tanaman anggerk (Martha et al, 2015), bawang putih (Fauziah, 2015), Asteraceae (Salamah et al, 2018), dan tanaman jati (Sekar & Randy, 2015).…”

Local adaptation of invasive plant, Synedrella nodiflora, in urban tropical lowland landscape Universitas Indonesia

“…The campus also has welldocumented data about plant communities, included family Asteraceae. Many studies have been conducted about Asteraceae, such as species diversity (Oktarina & Salamah 2017), chromosome variations (Salamah et al 2018), and pollen morphology (Salamah et al 2019).…”