Đang chuẩn bị liên kết để tải về tài liệu:
Karyotype traits in Romanian selections of edible blue honeysuckle

Không đóng trình duyệt đến khi xuất hiện nút TẢI XUỐNG Tải xuống

Large morpho-anatomical and biochemical variability was evidenced in all Lonicera caerulea L. provenances. The knowledge of chromosome constitution is of basic importance in this context of elevated phenotype heterogeneity and represents a necessary step in breeding programs. | Turkish Journal of Biology http://journals.tubitak.gov.tr/biology/ Research Article Turk J Biol (2013) 37: 60-68 © TÜBİTAK doi:10.3906/biy-1205-28 Karyotype traits in Romanian selections of edible blue honeysuckle 1, 1 1 2 Elena TRUTA *, Gabriela VOCHITA , Craita Maria ROSU , Maria Magdalena ZAMFIRACHE , 2 2 Zenovia OLTEANU , Lacramioara OPRICA 1 Department of Applied and Experimental Biology, NIRDBS-Institute of Biological Research, Iasi, Romania 2 Faculty of Biology, Alexandru Ioan Cuza University, Iasi, Romania Received: 16.05.2012 Accepted: 27.07.2012 Published Online: 10.01.2013 Printed: 01.02.2013 Abstract: Large morpho-anatomical and biochemical variability was evidenced in all Lonicera caerulea L. provenances. The knowledge of chromosome constitution is of basic importance in this context of elevated phenotype heterogeneity and represents a necessary step in breeding programs. The Romanian selections are tetraploid (2n = 4x = 36). Chromosomes are small-sized ( 2 increases) and from type A to type C (in relation to the ratio between the size of the largest and the smallest chromosome pair). 2.4. Idiogram construction An idiogram was drawn based on the average of the mean values calculated for the karyotypes of the 4 analyzed selections (Table 3). Short arms of the chromosomes were placed above the imaginary line representing centromere position. For each parameter, the mean and the standard error of the mean (x– ± SE) were calculated. 3. Results The small size of the chromosomes and the low occurrence of well-spread chromosomes in metaphase plates often TRUTA et al. / Turk J Biol – ± SE) of cytogenetic parameters of Romanian blue honeysuckle selections utilized for idiogram construction Table 3. Average values (x (CL = chromosome length, L = long arm length, S = short arm length, r = arm ratio (L/S), CI = centromeric index, RL = relative length). Pair Type CL L S r CI% RL% I sm 2.73 ± 0.20 1.71 ± 0.22 1.02 ± 0.03 1.70 ± 0.28 38.09