+ Site Statistics
References:
52,654,530
Abstracts:
29,560,856
PMIDs:
28,072,755
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

A cytotaxonomic study in artificial hybrids between drosera anglica huds. and its certain closely related species in series drosera section drosera subgenus drosera drosera



A cytotaxonomic study in artificial hybrids between drosera anglica huds. and its certain closely related species in series drosera section drosera subgenus drosera drosera



Kromosomo 2(51-52): 1697-1709



Drosera capillaris, D. filiformis, D. intermedia and D. rotundifolia were diploid (2n=20), D. anglica and the "Kanto-type" of D. spathulata were tetraploid (2n=40), and the "Kansai-type" of D. spathulata was hexaploid (2n=60). The chromosomes at resting and mitotic prophase stages were karyomorphologically of the complex chromocenter type and the gradient type, respectively. The chromosome complements of those diploids and tetraploid species at mitotic metaphase performed a gradual decrease in chromosome length from the longest to the shortest, while those of the hexaploid D. spathulata performed a bimodal alignment with 20 medium and 40 short chromosomes. The artificial hydrids between D. anglica and the six taxa showed always intermediate chromosome numbers and complements of the bimodal karyotypes at mitotic prophase and metaphase. Drosera anglica .times. D. intermedia and D. anglica .times. D. rotundifolia showed the typical Drosera-type of the meiotic chromosome configuration of 10II + 10I, while those of the other hybrids showed various configurations with various multivalent formations. Lagging chromosomes were always seen in PMC's stages after metaphase I in those hybrids.

(PDF emailed within 1 workday: $29.90)

Accession: 006940486

Download citation: RISBibTeXText


Related references

Comparative flower structure of three species of sundew (Drosera anglica, Drosera linearis, and Drosera rotundifolia) in relation to breeding system. Canadian Journal of Botany 81(11): 1129-1142, 2003

A natural hybrid of Drosera anglica Huds. and Drosera linearis Goldie in Michigan. Rhodora 97(890): 164-170, 1995

A growning place of Drosera anglica Huds. (=Drosera longifolia L.) on calcareous tufa with basic hydrogen-ion concentration. Bulletin mensuel de la Sociaetae linnaeenne de Lyon: 43 (1) 8, 1974

Study of the secretion of mucilage by digestive gland cells of Drosera (Drosera rotundifolia L. and Drosera capensis L.). application of some cytochemical techniques. Cytobiologie 13 (3) 307-321, 1976

The significance of carnivory for the fitness of drosera in its natural habitat 1. the reactions of drosera intermedia and drosera rotundifolia to supplementary feeding. Oecologia 75(3): 472-480, 1988

The significance of carnivory for the fitness of Drosera in its natural habitat : 2. The amount of captured prey and its effect on Drosera intermedia and Drosera rotundifolia. Oecologia 81(3): 401-411, 1989

The significance of carnivory for the fitness of drosera in its natural habitat 2. the amount of captured prey and its effect on drosera intermedia and drosera rotundifolia. Oecologia 81(3): 401-411, 1989

Droseraceae Drosera indica, Drosera burmannii, Drosera petiolaris, description, Australia. Flora of Central Australia the Australian Systematic Botany Society J Jessop editor in chief, 1981

Drosera. Isolation of plumbagone from Drosera auriculata and ramentaceone from Drosera ramentacea. Ann Pharm Francaises 17: 585-592, 1959

Sexual and vegetative reproduction of the sympatric congeners Drosera anglica and Drosera rotundifolia. Flora - Morphology, Distribution, Functional Ecology of Plants 210: 60-65, 2015

Photosynthetic and anatomical characteristics of Drosera rotundifolia L. and Drosera spathulata Labill. species. Acta Facultatis Rerum Naturalium Universitatis Comenianae, Physiologia Plantarum ( 28): 70-81, 1992

Photosynthetic and anatomical characteristics of Drosera rotundifolia L and Drosera spathulata Labill species. Acta Facultatis Rerum Naturalium Universitatis Comenianae Physiologia Plantarum 0(28): 70-81, 1992, 1993

The significance of opportunistic predators for the sympatric carnivorous plant species Drosera intermedia and Drosera rotundifolia. Oecologia (Berlin) 81.3: 397-400, 1989

The significance of opportunistic predators for the sympatric carnivorous plant species Drosera intermedia and Drosera rotundifolia. Oecologia 81(3): 397-400, 1989

Segregation of habitat and prey in two sympatric carnivorous plant species drosera rotundifolia and drosera intermedia. Oecologia (Berlin) 70(4): 601-605, 1986