Tree Genetics & Genomes

, Volume 7, Issue 5, pp 941–954

Generation of a large-scale genomic resource for functional and comparative genomics in Liriodendron tulipifera L.

  • Haiying Liang
  • Saravanaraj Ayyampalayam
  • Norman Wickett
  • Abdelali Barakat
  • Yi Xu
  • Lena Landherr
  • Paula E. Ralph
  • Yuannian Jiao
  • Tao Xu
  • Scott E. Schlarbaum
  • Hong Ma
  • James H. Leebens-Mack
  • Claude W. dePamphilis
Original Paper

DOI: 10.1007/s11295-011-0386-2

Cite this article as:
Liang, H., Ayyampalayam, S., Wickett, N. et al. Tree Genetics & Genomes (2011) 7: 941. doi:10.1007/s11295-011-0386-2
  • 303 Downloads

Abstract

Liriodendron tulipifera L., a member of Magnoliaceae in the order Magnoliales, has been used extensively as a reference species in studies on plant evolution. However, genomic resources for this tree species are limited. We constructed cDNA libraries from ten different types of tissues: premeiotic flower buds, postmeiotic flower buds, open flowers, developing fruit, terminal buds, leaves, cambium, xylem, roots, and seedlings. EST sequences were generated either by 454 GS FLX or Sanger methods. Assembly of almost 2.4 million sequencing reads from all libraries resulted in 137,923 unigenes (132,905 contigs and 4,599 singletons). About 50% of the unigenes had significant matches to publically available plant protein sequences, representing a wide variety of putative functions. Approximately 30,000 simple sequence repeats were identified. More than 97% of the cell wall formation genes in the Cell Wall Navigator and the MAIZEWALL databases are represented. The cinnamyl alcohol dehydrogenase (CAD) homologs identified in the L. tulipifera EST dataset showed different expression levels in the ten tissue types included in this study. In particular, the LtuCAD1 was found to partially recover the stiffness of the floral stems in the Arabidopsis thaliana CAD4 and CAD5 double mutant plants, of the LtuCAD1 in lignin biosynthesis. L. tulipifera genes have greater sequence similarity to homologs from other woody angiosperm species than to non-woody model plants. This large-scale genomic resour"HistryDatesce will be instrumental for gene discovery, cDNA microarray production, and marker-assisted breeding in L. tulipifera, and strengthen this species' role in comparative studies.

Keywords

EST database Xylogenesis Liriodendron Yellow-poplar Magnoliaceae 

Supplementary material

11295_2011_386_MOESM1_ESM.doc (57 kb)
Online Resource 1Cumulative codon usage in Liriodendron tulipifera transcriptome (DOC 57 kb)
11295_2011_386_MOESM2_ESM.doc (32 kb)
Online Resource 2Dinucleotide frequencies (DOC 31 kb)
11295_2011_386_MOESM3_ESM.txt (1 kb)
Online Resource 3(TXT 0 kb)
11295_2011_386_MOESM4_ESM.pdf (24.9 mb)
Online Resource 4(PDF 25,536 kb)
11295_2011_386_MOESM5_ESM.txt (5.5 mb)
Online Resource 5(TXT 5,654 kb)
11295_2011_386_MOESM6_ESM.txt (15 kb)
Online Resource 6(TXT 15 kb)
11295_2011_386_MOESM7_ESM.txt (5 kb)
Online Resource 7Conserved miRNAs identified in Liriodendron tulipifera cDNA unigenes (TXT 4 kb)
11295_2011_386_MOESM8_ESM.txt (57 kb)
Online Resource 8Liriodendron genes potentially targeted by the identified miRNAs. The targets having hits in the Cell Wall Navigator and/or Maize Wall databases are highlighted (TXT 57 kb)
11295_2011_386_MOESM9_ESM.txt (389 kb)
Online Resource 9Liriodendron tulipifera unigenes with significant hits in the Cell Wall Navigator database (TXT 389 kb)
11295_2011_386_MOESM10_ESM.txt (619 kb)
Online Resource 10Liriodendron tulipifera unigenes with significant hits in the Maize Wall database (TXT 619 kb)

Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • Haiying Liang
    • 1
  • Saravanaraj Ayyampalayam
    • 2
  • Norman Wickett
    • 3
  • Abdelali Barakat
    • 1
  • Yi Xu
    • 1
  • Lena Landherr
    • 3
    • 4
  • Paula E. Ralph
    • 3
  • Yuannian Jiao
    • 3
  • Tao Xu
    • 1
  • Scott E. Schlarbaum
    • 5
  • Hong Ma
    • 3
    • 6
    • 7
  • James H. Leebens-Mack
    • 2
  • Claude W. dePamphilis
    • 3
  1. 1.Department of Genetics and BiochemistryClemson UniversityClemsonUSA
  2. 2.Department of Plant Biology, Plant Sciences BuildingUniversity of GeorgiaAthensUSA
  3. 3.Department of Biology and Huck Institutes of the Life SciencesPennsylvania State UniversityUniversity ParkUSA
  4. 4.Department of HorticulturePennsylvania State UniversityUniversity ParkUSA
  5. 5.Department of Forestry, Wildlife & Fisheries, Institute of AgricultureThe University of TennesseeKnoxvilleUSA
  6. 6.State Key Laboratory of Genetic Engineering, Institute of Plant Biology, Center for Evolutionary BiologySchool of Life Sciences, Fudan UniversityShanghaiChina
  7. 7.Institutes of Biomedical SciencesFudan UniversityShanghaiChina

Personalised recommendations