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022 _a0176-1617
040 _aMSU
_bEnglish
_cMSU
_erda
050 0 0 _aQK711..2 JOU
100 1 _aHamo, Maya Lugassi-Ben
_eauthor
245 1 0 _aCharacterization of expressed sequence tags from Lilium longiflorum in vernalized and non-vernalized bulbs
_ccreated by Maya Lugassi-Ben Hamo, Carlos Villacorta Martin and Michele Zaccai
264 1 _aAmsterdam:
_bElsevier GmbH,
_c2015.
336 _2rdacontent
_atext
_btxt
337 _2rdamedia
_aunmediated
_bn
338 _2rdacarrier
_avolume
_bnc
440 _aJournal of Plant Physiology
_vVolume 173
520 3 _aIn Lilium longiflorum, vernalization is both an obligatory requirement and the major factor affecting flowering time, however, little is known about the molecular regulation of this mechanism in Lilium and other flowering bulbs. Exposure of L. longiflorum bulbs to 9 weeks at 4°C greatly promoted stem elongation within the bulb, floral transition and flowering. Subtraction libraries of vernalized (V) and non-vernalized (NV) bulb meristems were constructed. 671 and 479 genes were sequenced, from which 72 and 82 proteins were inferred for the NV-V and the V-NV libraries, respectively. Much lower transcription levels and putative gene functions were recorded in the NV-V libraries compared the V-NV libraries. However, a large number of genes annotated to transposable elements (TEs), represented more than 20% of the sequenced cDNA were expressed in the NV-V libraries, as opposed to less than 2% in the V-NV libraries. The expression profile of several genes potentially involved in the vernalization pathway was assessed. Expression of LlSOC1, the lily homologue of SUPPRESSOR OF OVER-EXPRESSION OF CO1 (SOC1), an important flowering gene in several plant species, found in the V-NV library, was highly up-regulated during bulb meristem cold exposure. The subtraction libraries provided a fast tool for relevant gene isolation.
650 _aESTs
650 _aFlowering
650 _aLilium longiflorum
700 1 _aMartin, Carlos Villacorta
_eco-author
700 1 _aZaccai, Michele
_eco-author
856 _uhttps://doi.org/10.1016/j.jplph.2014.09.015
942 _2lcc
_cJA
999 _c169365
_d169365