Pollen studies in the genus viola (violaceae) from Iran
نویسندگان
چکیده
منابع مشابه
From Gene Trees to a Dated Allopolyploid Network: Insights from the Angiosperm Genus Viola (Violaceae)
Allopolyploidization accounts for a significant fraction of speciation events in many eukaryotic lineages. However, existing phylogenetic and dating methods require tree-like topologies and are unable to handle the network-like phylogenetic relationships of lineages containing allopolyploids. No explicit framework has so far been established for evaluating competing network topologies, and few ...
متن کاملPharmacognostic Research on Viola Declinata Waldst. Et Kit. (violaceae)
In order to continue our previous studies on some Viola species from Romania, we have analysed for the first time some active principles from aerial parts of V. declinata Waldst. et Kit. We have performed gravimetric methods for saponins and mucilages, and spectrophotometric determinations and HPLC analysis of carotenoids. We established the content in saponins (4.40%), mucilages (10.26%), and ...
متن کاملInferring Species Networks from Gene Trees in High-Polyploid North American and Hawaiian Violets (Viola, Violaceae)
The phylogenies of allopolyploids take the shape of networks and cannot be adequately represented as bifurcating trees. Especially for high polyploids (i.e., organisms with more than six sets of nuclear chromosomes), the signatures of gene homoeolog loss, deep coalescence, and polyploidy may become confounded, with the result that gene trees may be congruent with more than one species network. ...
متن کاملDevelopment of microsatellite primers in the protected species Viola elatior (Violaceae) using next-generation sequencing1
PREMISE OF THE STUDY Viola elatior (Violaceae) is a Eurasian perennial plant species in which French populations are threatened by anthropogenic pressures. Microsatellite primers were developed to investigate its genetic structure and diversity. METHODS AND RESULTS Eight microsatellite markers were isolated using next-generation sequencing. Loci were amplified and screened for 138 individuals...
متن کاملمطالعه ایزوزیمی بخشه viola از سرده (violaceae) viola در ایران
برگهای تازه تاکسون های بخشه viola از شمال ایران جمع آوری گردید. گونه های مورد مطالعه،v. odorata, v. alba v. و sintenisii v. (از زیر بخشهviola) v. caspia ,v. caspia subsp. caspia ,v.caspia subsp. sylvestroides × reichenbachiana ,v. reichenbachiana v. و v.rupestris(زیر بخشه rostratae) می باشند. این مطالعه براساس دو سیستم آنزیمی فسفوگلوکوایزومراز و اکونیتاز صورت گرفته است. فرکانس باندهای پروتئینی ...
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ژورنال
عنوان ژورنال: Acta Botanica Croatica
سال: 2014
ISSN: 0365-0588
DOI: 10.2478/botcro-2013-0013