The genes FLORICAULA (FLO) in snapdragon and LEAFY (LFY) in arabidopsis encode a key transcription factor in control of the identity of shoot apical meristem, floral transition, and florogenesis. There is a persistent question whether these diverse functions are controlled by one and the same gene or rather, they are distributed between the paralogs arising from gene duplication. Due to its extensive polymorphism, the second intron of FLO/LFY (FLint2) would present a workable model for exploring this problem. We compared FLint2 structures within the genus Brassica and in the family Brassicaceae as a whole. The analysis of already cloned polymorphic regions within FLint2 sequences in diploid (genomes A, B, and C) and allotetraploid (genomes AB, AC, and BC) species of Brassica let us believe that two FLO/LFY paralogs were found within the genome B. All together, the structural polymorphisms, including the presence/absence of the binding site for the transcription regulator AGAMOUS-LIKE3/SEPALLATA4, presume that several Brassicaceae species comprise two FLO/LFY loci. The FLint2-derived markers of FLO/LFY developed in this study will help assess the copy numbers of this gene and carry out a detailed locus-specific analysis of FLint2 structure in diverse Brassica forms.
Russian Journal of Plant Physiology – Springer Journals
Published: Jul 12, 2008
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera