scholarly journals Usage of microsatellite markers for characterization of polyploids: a case study in reference to hexaploid bamboo species

2020 ◽  
Vol 69 (1) ◽  
pp. 94-97
Author(s):  
Rajendra K. Meena ◽  
Maneesh S. Bhandari ◽  
Harish S. Ginwal
Keyword(s):  
Microsatellite Markers ◽  
Banding Pattern ◽  
Plant Genetic Resources ◽  
Diploid Species ◽  
Data Sets ◽  
Bamboo Species ◽  
Polyploid Species ◽  
Dominant Marker ◽  
Population Genetic Analysis

AbstractMicrosatellite markers are most valuable tools for characterization of plant genetic resources or population genetic analysis. Since they are codominant and allelic markers, utilizing them in polyploid species remained doubtful. In such cases, microsatellite markers are usually analyzed by treating them as dominant marker. In the current study, it has been showed that despite of losing the advantage of co-dominance, microsatellite markers are still powerful tool for genotyping of polyploid species because of availability of large number of reproducible alleles per locus. It has been studied by genotyping of nineteen sub populations of Dendrocalamus hamiltonii (hexaploid bamboo species) with seventeen polymorphic SSR primer pairs. Among these, ten primers gave typical banding pattern of microsatellite marker as expected in diploid species but rest seven gave unusual pattern i.e. more than two bands per locus per genotype. In such case genotyping data are generally analyzed by considering as dominant markers. Given these facts, data were analyzed in both ways as dominant and codominant. All the seventeen primer were first scored as non-allelic data and analyzed; later ten primer pairs giving standard banding pattern were analyzed as allelic data and the results were compared. The UPGMA clustering and genetic structure showed that results obtained with both the data sets were very similar, and therefore the SSR marker could be utilized to characterize polyploid species by considering them as dominant marker. The study is highly useful to widen the scope of SSR markers applications and beneficial to the researchers dealing with polyploid species.

scholarly journals Development of new microsatellite markers for DNA fingerprinting pattern of black gram (Vigna mungo L. Hepper) and green gram (Vigna radiate L. Wilckzek)

Genetika ◽  
2020 ◽  
Vol 52 (3) ◽  
pp. 1161-1179
Author(s):  
Kaushik Panigrahi ◽  
Puranjaya Panigrahi ◽  
Ayesha Mohanty ◽  
Purandar Mandal ◽  
Basudeba Satapathy
Keyword(s):  
Genetic Diversity ◽  
Microsatellite Markers ◽  
Banding Pattern ◽  
Growth Period ◽  
Green Gram ◽  
Black Gram ◽  
Crop Species ◽  
Genetic Studies ◽  
Ssr Primers

SSR markers are considered to be the most ideal marker for genetic studies because they are multi-allelic, abundant, randomly and widely distributed throughout the genome, co-dominant that could differentiate plants with homozygous or heterozygous alleles, simple to assay, highly reliable, reproducible. Microsatellite markers are highly polymorphic and informative and could be successfully used for genome analysis in black gram & green gram. Microsatellite markers were used to evaluate genetic diversity in 17 indigenous cultivars of pulse crops (11 cultivars of green gram and 6 cultivars of black gram respectively). They are subjected to variability analysis with 26 microsatellite markers for identification efficient primers to conclude the nature of molecular diversity present among the pulses. The SSR primer G228 showed 63.63% of polymorphism followed by MB-SSR 238 (45.45%) and G006 (36.36%). The 12 microsatellite markers produced 15.90 % polymorphism with banding ranged up to 7 with an average of 2.3 polymorphic banding patterns per SSR primer. Similarly for black gram, three random microsatellite primers G006 (50%) and G166 and G204 (33.33%) revealed considerable DNA polymorphism. The 14 random SSR primers produced 8.33% of polymorphism with banding ranged up to three with an average of 1.28 polymorphic banding pattern per SSR primer. The Distinguish Power (D), Polymorphism Information Content (PIC) value and Marker Index (MI) values revealed some SSR primers like G006, G204 and G166 can alone amplified distinct banding pattern, where as a combination of (G228+G006), (G228+G304) for green gram and the combination (G006+G166) can be used for black gram for ascertaining genetic diversity at any stage of crop growth period for green gram or black gram. From the present study we can conclude that selective microsatellite markers are highly polymorphic, informative and easily reproducible, which can be successfully used either as single or with combination for molecular characterization of crop species belonging to Vigna species.

Development and characterization of 24 microsatellite markers in Primula tosaensis , an endangered primrose, using MiSeq

2017 ◽  
Vol 33 (1) ◽  
pp. 77-80 ◽  
Author(s):  
Masaya Yamamoto ◽  
Yoshihiro Handa ◽  
Hiroki Aihara ◽  
Hiroaki Setoguchi
Keyword(s):  
Microsatellite Markers

Genetic characterization of novel polymorphic microsatellite markers for Epilobium nankotaizanense (Onagraceae), an endemic and threatened herb in Taiwan

2021 ◽  
pp. 1-4
Author(s):  
Yu-Wei Tseng ◽  
Chi-Chun Huang ◽  
Chih-Chiang Wang ◽  
Chiuan-Yu Li ◽  
Kuo-Hsiang Hung
Keyword(s):  
Microsatellite Markers ◽  
Natural Populations ◽  
Conservation Strategy ◽  
Sequencing Data ◽  
Germplasm Collections ◽  
The Family ◽  
Conservation Genetic ◽  
Population Sizes ◽  
Polymorphic Microsatellite

Abstract Epilobium belongs to the family Onagraceae, which consists of approximately 200 species distributed worldwide, and some species have been used as medicinal plants. Epilobium nankotaizanense is an endemic and endangered herb that grows in the high mountains in Taiwan at an elevation of more than 3300 m. Alpine herbs are severely threatened by climate change, which leads to a reduction in their habitats and population sizes. However, only a few studies have addressed genetic diversity and population genetics. In the present study, we developed a new set of microsatellite markers for E. nankotaizanense using high-throughput genome sequencing data. Twenty polymorphic microsatellite markers were developed and tested on 30 individuals collected from three natural populations. These loci were successfully amplified, and polymorphisms were observed in E. nankotaizanense. The number of alleles per locus (A) ranged from 2.000 to 3.000, and the observed (Ho) and expected (He) heterozygosities ranged from 0.000 to 0.929 and from 0.034 to 0.631, respectively. The developed polymorphic microsatellite markers will be useful in future conservation genetic studies of E. nankotaizanense as well as for developing an effective conservation strategy for this species and facilitating germplasm collections and sustainable utilization of other Epilobium species.

Characterization of nine polymorphic microsatellite markers in sprat (Sprattus sprattusL.)

2008 ◽  
Vol 8 (4) ◽  
pp. 861-863 ◽  
Author(s):  
T. DAILIANIS ◽  
M. LIMBORG ◽  
R. HANEL ◽  
D. BEKKEVOLD ◽  
J. LAGNEL ◽  
...  
Keyword(s):  
Microsatellite Markers ◽  
Polymorphic Microsatellite
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