Jia WANG, Tian-hua ZHOU. Development of Novel Microsatellite Markers and Characteristic Analysis for Sinowilsonia henryi[J]. Chinese journal of experimental traditional medical formulae, 2019, 25(3): 143-150.
DOI:
Jia WANG, Tian-hua ZHOU. Development of Novel Microsatellite Markers and Characteristic Analysis for Sinowilsonia henryi[J]. Chinese journal of experimental traditional medical formulae, 2019, 25(3): 143-150. DOI: 10.13422/j.cnki.syfjx.20190320.
Development of Novel Microsatellite Markers and Characteristic Analysis for Sinowilsonia henryi
To analyze the microsatellite characteristics and develop microsatellite markers for
Sinowilsonia henryi
a rare and endangered plant endemic to China.
Method:
2
The Illumina second generation sequencing technology was used to establish the genome library and the microsatellite library of
S
.
henryi
. The compositions of the microsatellite were analyzed
and the primers of
S
.
henryi
were designed. Its polymorphism was analyzed by the amplification and detection of 5
S
.
henryi
populations.
Result:
2
A total of 38
942
and 660 matched sequences of 100 bp were returned by the second generation sequencing. Among them
200
386 splice sequences were obtained by mass pruning and splicing; the number of sequences with length greater than 335 bp was 7 614
and 694 microsatellite loci were detected in the 7 614 sequences
in which the single nucleotide repeats were most and the number of A/T repeated in the single nucleotide repeats was highest. Dinucleotide showed the greatest length variation; the number of AG/CT repeats was highest
and the variation in repeat length was positively correlated with microsatellite abundance. The primers were designed for 36
S
.
henryi
microsatellite sequences with high repetition. By PCR amplification and polyacrylamide gel electrophoresis
20 pairs of primers showed rich polymorphism and clear bands. The number of alleles (
N
A
) ranged from 3 to 6
with average of 4; the polymorphism information content (PIC) ranged from 0.535 5 to 0.754 0
with average of 0.615 5.The population genetic analysis of 5
S
.
henryi
populations showed that the genetic diversity of the species was high (
h
=0.697 5
I
=1.436 8
H
E
=0.702 2)
and the population genetic differentiation was significant (
F
st
=0.374).
Conclusion:
2
The population genetic analysis of
S
.
henryi
also showed that the primers developed by this study had a high usability. In this study
the primers of microsatellite markers of
S
.
henryi
were established
laying the foundation for the molecular genetics of
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