Oliveira et al. 2008 (Article) Brazil

Cytogenetics of Brazilian species of Bromeliaceae

Author(s):—G. de Oliveira C., Aquino A. de, M.L.S. Guedes & A.L.P. Cotias O.

Publication:—Botanical Journal of the Linnean Society 158(1): 189-193. (2008) — DOI

Abstract:—This paper presents the mitotic chromosome numbers of 18 species of Bromeliaceae. The diploid number 2n?=?50 was observed in Aechmea comata, A.?caudata, A.?correia-araujoi, A.?recurvata, A.?marauensis, A.?bicolor, A.?pineliana, Hohenbergia catingae, H.?blanchetti, Alcantarea imperialis, Al.?nahoumi, Neoregelia tenebrosa, Nidularium lyman-smithii, N.?scheremetiewii, N.?innocentii var. innocentii, and N.?innocentii???Neoregelia johannis hybrid, whereas 2n?=?34 was observed in Cryptanthus maritimus and C.?warren-loosei. All of the determinations presented in this study are previously unpublished, except A.?comata and H.?catingae. These results confirm x?=?25 as the basic number for the family and x?=?17 as a secondary basic number probably generated by decreasing dysploidy. ? 2008 The Linnean Society of London, Botanical Journal of the Linnean Society, 2008, 158, 189?193.

Keywords:—Aechmea, Alcantarea, chromosome numbers, Cryptanthus, dysploidy, Hohenbergia, Neoregelia, Nidularium, polyploidy