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The MADS box gene, AGAMOUS-LIKE 20 (AGL20), integrates environmental and endogenous flowering signals in Arabidopsis thaliana. In order to determine if its role is conserved in other plants, we isolated AGL20 orthologs from Brassica campestris, Cardamine flexuosa and Draba nemorosa. The putative amino acid sequences of the orthologs were 94 to 97% identical. We analyzed the flowering phenotype ...

The present part of the series provides miscellaneous new records 15 taxa vascular plants from Hungary. New chorological are provided here: Androsace maxima, Helminthia echioides and Hypericum elegans for ‘Közép-Tisza-vidék’, is also to ‘Duna-sík’, Aphanes arvensis Medicago rigidula in ‘Hajdúság’, Bolboschoenus maritimus Putnok Hills Sajó Valley, Draba muralis Mátra Mts, Eriochloa villosa a ali...

The arctic flora is considered to be impoverished, but estimates of species diversity are based on morphological assessments, which may not provide accurate counts of biological species. Here we report on crossing relationships within three diploid circumpolar plant species in the genus Draba (Brassicaceae). Although 99% of parental individuals were fully fertile, the fertility of intraspecific...

‘OGjaerevoll, 0. 1963. Botanical investigations in central Alaska especially in the White Mountains. Part 11. Det Kg1 Norske Videnskabers Selskabs Skrifter, 4. 115 pp. 11L6ve, D. and N. J. Freedman. 1956. A plant collection from SW Yukon. Botaniska Notiser, 109: 153-211. IzViereck, L. A. 1967. Plants above 2,140 meters (7,000 feet) in the Alaska Range. Bryologist, 70: 345-347. 13Bakewel1, A. 19...