Genome-wide identification and analysis of late embryogenesis abundant (LEA) genes in Prunus mume

Mol Biol Rep. 2013 Feb;40(2):1937-46. doi: 10.1007/s11033-012-2250-3. Epub 2012 Oct 21.

Abstract

Late embryogenesis abundant (LEA) proteins play important roles in plant desiccation tolerance. In this study, 30 LEA genes were identified from Chinese plum (Prunus mume) through genome-wide analysis. The PmLEA genes are distributed on all Chinese plum chromosomes except chromosome 3. Twelve (40 %) and five PmLEA genes are arranged in tandem and segmental duplications, respectively. The PmLEA genes could be divided into eight groups (LEA_1, LEA_2, LEA_3, LEA_4, LEA_5, PvLEA18, dehydrin and seed maturation protein). Ten gene conversion events were observed and most of them (70 %) were identified in dehydrin group. Most PmLEA genes were highly expressed in flower (22/30) and up-regulated by ABA treatment (19/30).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Abscisic Acid / pharmacology
  • Abscisic Acid / physiology
  • Amino Acid Motifs
  • Amino Acid Sequence
  • Chromosome Mapping
  • Chromosomes, Plant
  • Consensus Sequence
  • Evolution, Molecular
  • Exons
  • Gene Conversion
  • Gene Expression Regulation, Plant
  • Genome, Plant*
  • Introns
  • Molecular Sequence Data
  • Organ Specificity
  • Phylogeny
  • Plant Components, Aerial / genetics
  • Plant Components, Aerial / metabolism
  • Plant Growth Regulators / pharmacology
  • Plant Growth Regulators / physiology
  • Plant Proteins / chemistry
  • Plant Proteins / genetics*
  • Plant Roots / genetics
  • Plant Roots / metabolism
  • Promoter Regions, Genetic
  • Prunus / genetics*
  • Prunus / metabolism
  • Transcriptome*

Substances

  • Plant Growth Regulators
  • Plant Proteins
  • late embryogenesis abundant protein, plant
  • Abscisic Acid