Molecular diversity and relationships among Cymbidium goeringii cultivars based on inter-simple sequence repeat (ISSR) markers

Genetica ◽  
2008 ◽  
Vol 136 (3) ◽  
pp. 391-399 ◽  
Author(s):  
Hui-Zhong Wang ◽  
Zhen-Xing Wu ◽  
Jiang-Jie Lu ◽  
Nong-Nong Shi ◽  
Yan Zhao ◽  
...  
2015 ◽  
Vol 38 (5) ◽  
Author(s):  
Padmavati G. Gore ◽  
M. K. Rana ◽  
Kuldeep Tripathi ◽  
Mohar Singh ◽  
I. S. Bisht ◽  
...  

Genetic diversity was assessed in 50 accessions of seven <italic>Lens</italic> species using ISSR markers. The collection included accessions of the cultivated species <italic>L. culinaris</italic> and six wild species, <italic>viz</italic>., <italic>L. culinaris</italic> ssp. <italic>odemensis, L. culinaris</italic> ssp. <italic>orientalis</italic>, <italic>L.</italic> <italic>orientalis, L. nigricans, L. lamottei</italic> and <italic>L. ervoides.</italic> The 23 ISSR primers amplified a total of 368 bands with an average of 16 bands per primer. Maximum number of 20 bands was amplified using each of the primers ISSR-34 and ISSR-835. All the primers were found to be polymorphic. PIC values ranged from 0.02 to 0.80. The primers ISSR-807, ISSR- 809, ISSR- 827, ISSR- 847, ISSR-28 and ISSR- 37 were found to be very useful for analyzing the molecular diversity of the genus <italic>Lens</italic>. Cluster Analysis and Principal Coordinates Analyses placed the 50 accessions into two groups and complemented each other.


2010 ◽  
Vol 39 (1) ◽  
pp. 119-122 ◽  
Author(s):  
Mahmudul Islam Nazrul ◽  
Fan Xiao Lin ◽  
Bian Yin-Bing

Among ten slow-growing protoclones of Agaricus bisporus (J. Lge) Imbach, all appressed colonies showed slower growth rate and spawn run, and inability to produce fruiting bodies in substrate. Seven of 40 inter-simple sequence repeat (ISSR) primers amplified 78 reproducible fragments, 48.93% were polymorphic, each producing 7 to 16 bands ranging from 0.10 to 2.10 kbp, sufficient to differentiate the protoclones from each other. Appressed protoclones were homoallelic at a number of loci that were heteroallelic in the parent, suggesting that they represented rare homokaryons. Thus, using morphological characters along with ISSR, polymorphisms could be useful for quick, easy, and accurate in distinguishing homo- and heterokaryotic isolates. Key words: Agaricus bisporus (J. Lge) Imbach; Homokaryon; ISSR; Protoclone DOI: 10.3329/bjb.v39i1.5537Bangladesh J. Bot. 39(1): 119-122, 2010 (June)


2015 ◽  
Vol 22 (2) ◽  
pp. 67-75 ◽  
Author(s):  
Leila Samiei ◽  
Mahnaz Kiani ◽  
Homa Zarghami ◽  
Farshid Memariani ◽  
Mohammad Reza Joharchi

In this study genetic diversity and interspecific relationships of 11 Allium L. species from Khorassan province of Iran including 32 accessions were investigated by inter simple sequence repeat (ISSR) markers. Nine ISSR primers produced a total of 80 polymorphic markers and revealed high polymorphism among the studied species. The average gene diversity, effective number of alleles and Shannon’s information index were 0.2, 1.28 and 0.3, respectively. Allium kuhsorkhense exhibited the greatest level of variation (He: 0.18), whereas A. stipitatum demonstrated the lowest level of variability (He: 0.05). UPGMA (Unweighted Pair Group Method with Arithmetic mean) analysis showed that Allium accessions have a similarity range of 0.60 to 0.95. Allium scapriscapum composed the most distant group in the dendrogram. The clustered groups of Allium species clearly reflect the recent taxonomic concept of the genus at the subgenus and section levels. The present study showed that the ISSR technique is an effective molecular approach for analyzing genetic diversity and relationship in Allium species.Bangladesh J. Plant Taxon. 22(2): 67-75, 2015 (December)


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