Casuarina SSR: Difference between revisions

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===Develop unigenes===
===Develop unigenes===
* TGICL is used
* TGICL is used
* Contigs :  
** Param: Left to default
* Singlets:
<pre>
# -l miminum overlap length (default 40)
# -M ignore lower-case masking in <fasta_db> sequences
# -p minimum percent identity for overlaps <PID> (default 94)
</pre>
* Contigs : '''3947'''
* Singlets: '''475'''
* Unigenes: '''4422'''


===Generate statistics===
===Generate statistics===
* Final number of sequence
** Param: Trimmed off the <220bp | Trimmed off the N>20%
** ID Named
* Distribution of length in contigs: 220-500: 546 | 500-1000: 3119 | 1000-1500: 529 | >1500: 98
* Trimmed Sequences: '''4285'''


===Filter the sequence===
===Mine for repeat motifs===
* Param:
<pre>
Definement of microsatellites (unit size / minimum number of repeats): (2/7) (3/5) (4/4)
</pre>
* Stat
<pre>
Total number of sequences examined:              4285
Total size of examined sequences (bp):          3253599
Total number of identified SSRs:                383
Number of SSR containing sequences:              347
Number of sequences containing more than 1 SSR:  30
Number of SSRs present in compound formation:    24
 
Distribution to different repeat type classes
---------------------------------------------
 
Unit size Number of SSRs
Di 217
Tri 141
Tetra 25


===Mine for repeat motifs===
</pre>


===Design Primers===
===Design Primers===

Latest revision as of 05:36, 29 December 2011


New SSRs Pipeline Target

  • Designing Cross species EST SSRs from Casuarina
  • Author: Ashok Kulkarni and Rajkumar
  • Timeline
    • Designing Primers: DEC 2011
    • Oligo synthesis  : JAN 2012
    • Standardisation and Validation  : MAR 2010
    • Manuscript  : JUN 2010

Scientific Assumptions

EST SSRs are supposedly conserved across species therefore higher species transferability is expected

Strategy

  • C. glauca ESTs
  • Develop unigenes
  • Generate statistics
  • Filter the sequence
  • Mine for repeat motifs
  • Design Primers

Implementation

C. glauca ESTs

  • Total Number of ESTs: 34897
  • Total number of C. glauca ESTs: 34805

Develop unigenes

  • TGICL is used
    • Param: Left to default
# -l miminum overlap length (default 40)
# -M ignore lower-case masking in <fasta_db> sequences
# -p minimum percent identity for overlaps <PID> (default 94)
  • Contigs : 3947
  • Singlets: 475
  • Unigenes: 4422

Generate statistics

  • Final number of sequence
    • Param: Trimmed off the <220bp | Trimmed off the N>20%
    • ID Named
  • Distribution of length in contigs: 220-500: 546 | 500-1000: 3119 | 1000-1500: 529 | >1500: 98
  • Trimmed Sequences: 4285

Mine for repeat motifs

  • Param:
Definement of microsatellites (unit size / minimum number of repeats): (2/7) (3/5) (4/4) 
  • Stat
Total number of sequences examined:              4285
Total size of examined sequences (bp):           3253599
Total number of identified SSRs:                 383
Number of SSR containing sequences:              347
Number of sequences containing more than 1 SSR:  30
Number of SSRs present in compound formation:    24

Distribution to different repeat type classes
---------------------------------------------

Unit size	Number of SSRs
Di	217
Tri	141
Tetra	25

Design Primers