scholarly journals Genetic Diversity of Croton (Codiaeum variegatum (L.) Rumph.ex A. Juss) and Its Offspring Based on RAPD Markers

2019 ◽  
Vol 4 (2) ◽  
pp. 52
Author(s):  
Mufit Daryatun Asniawati ◽  
Aziz Purwantoro

Croton (Puring) is a native  plant of Indonesia which has varied leaf shapes and colors. The diversity of croton increase through hybridization. The information on genetic diversity and relationship between parent and its offspring of crotons is very limited. This study aims to analyze the genetic diversity of cultivar Mawar (MW) and Walet (W) as parent compare to their offspring i.e, Black Marlet (BM), Kingkit 1 (KA), Kingkit 2 (KB), and Kamaratih (KM) using RAPD markers. This study used DNA extraction from the fresh leaf of six cultivars. The next steps were DNA quantification, primary optimization, DNA amplification with PCR, and electrophoresis. Statistical analysis was carried out using Genalex software. A total of 40 primers were screened, out of which 10 were selected for the analysis of genetic diversity. A total of 106 polymorphic bands were generated, ranging from 130 to 1850 bp. The results of RAPD analysis showed that Mawar as female parent had the highest polymorphic bands percentage of 69.01%, while Walet as male parent and its offspring ranged from 31.15 % to 43.94%. The genetic distance of the offspring with Walet ranged from 0.176 to 0.234 and genetic distance of the offspring with Mawar ranged from 0.314 to 0.372. It was indicated that all of offspring were closer to the male parent.

2011 ◽  
Vol 343-344 ◽  
pp. 981-987
Author(s):  
Feng Juan Li ◽  
Chang Lu Wang ◽  
Dong He ◽  
Ya Qiong Liu ◽  
Mian Hua Chen ◽  
...  

RAPD markers are used to study the genetic diversity of the main planting on 37 castor varieties widely cultivated in china according to the oil content and other characteristic of different castor varieties. Genetic distance of 37 Chinese castor varieties is studied by RAPD markers analysis. RAPD analysis shows that a total of 122 bands are amplified from random primers of 20 S series, including 71 polymorphic bands with polymorphic rate of 58.20%. 37 castor beans are divided into four major groups in the phylogenetic tree. One castor germplasm is included in1, 2, 3 groups respectively, and two sub-groups are included in the 4 major group.


2003 ◽  
Vol 128 (1) ◽  
pp. 94-99 ◽  
Author(s):  
Roberto F. Vieira ◽  
Peter Goldsbrough ◽  
James E. Simon

Molecular markers were used to assess genetic diversity in basil (Ocimum L. spp., Lamiaceae). Using randomly amplified polymorphic DNA (RAPD) analysis, 11 primers generated 98 polymorphic bands, ranging from 300 to 2,000 base pairs, that discriminated among 37 accessions across nine Ocimum spp. Means of genetic similarities within Ocimum spp. showed that the domesticated species, O. minimum L. (0.887), O. basilicum L. (0.769), and O. ×citriodorum Vis. (0.711) had highest similarity indices within species, while the nondomesticated, O. americanum L. (0.580), O. gratissimum L. (0.408), and O. kilimandscharicum Guerke (0.559) showed the lowest similarity. RAPD results indicated that O. minimum should not be considered a distinct species but rather a variety of O. basilicum. Consistent clusters among all but one of the O. ×citriodorum spp., all containing citral as the major constituent, were identified using bootstrap analysis. RAPD analysis was useful in discriminating among Ocimum spp., although within species resolution will require a higher number of polymorphic bands.


Genome ◽  
1995 ◽  
Vol 38 (2) ◽  
pp. 201-210 ◽  
Author(s):  
F. N. Wachira ◽  
R. Waugh ◽  
W. Powell ◽  
C. A. Hackett

Camellia sinensis is a beverage tree crop native to Southeast Asia and introductions have been made into several nonindigenous countries. No systematic assessment of genetic variability in tea has been done anywhere. In this study, random amplified polymorphic DNA (RAPD) analysis was used to estimate genetic diversity and taxonomic relationships in 38 clones belonging to the three tea varieties, assamica, sinensis, and assamica ssp. lasiocalyx. Extensive genetic variability was detected between species, which was partitioned into between and within population components. Seventy percent of the variation was detected within populations. Analyses based on band sharing separated the three populations in a manner consistent with both the present taxonomy of tea and with the known pedigrees of some clones. RAPD analysis also discriminated all of the 38 commercial clones, even those which cannot be distinguished on the basis of morphological and phenotypic traits.Key words: genetic diversity, RAPDs, Camellia sinensis.


2007 ◽  
Vol 55 (3) ◽  
pp. 375-382 ◽  
Author(s):  
S. Mamo ◽  
A. Ayana ◽  
T. Tesso

A study on the extent and pattern of genetic variability in late-maturing sorghum [ Sorghum bicolor (L.) Moench] landraces collected from the Wello and Hararge areas of Ethiopia was conducted using random amplified polymorphic DNA (RAPD) markers for 70 individuals representing 14 populations. Four oligonucleotide primers generated a total of 55 polymorphic bands with 13–19 bands per primer and a mean of 16 bands across the 70 individuals. The value of the Shannon diversity index among the populations (0.26) and between the two regions (0.24) was low to moderate, despite the high degree of polymorphic bands per primer. The mean genetic distance (0.25) between the populations was found to be low. The low genetic variation may be due to the reduced population size of late-maturing sorghum landraces in the two regions of Ethiopia because of farmers’ decisions in the process of planting, managing, harvesting and processing their crops. Partitioning of the genetic variation into variation between and within the population revealed that 92.9% and 7.10% of the variation was found to be between and within the populations, respectively. Cluster analysis of genetic distance estimates further confirmed a low level of differentiation in late-maturing sorghum populations both between and within the regions. The implications of the results for genetic conservation purposes are discussed.


Author(s):  
Indu Rialch ◽  
Rama Kalia ◽  
H. K. Chaudhary ◽  
B. Kumar ◽  
J. C. Bhandari ◽  
...  

Ten morpho-agronomic traits and 80 random amplified polymorphic DNA (RAPD) molecular markers were used to survey genetic diversity in 25 chickpea genotypes. Analysis of variance revealed significant variability among different genotypes for morpho-metric traits. The cluster analysis done using morpho-metric traits grouped 25 genotypes into seven and six clusters in Environment I (Env. I) and Environment II (Env. II), respectively. Three genotypes viz., ICCV-96904, HPG-17, ICCV-95503 and L-HR-1 belonging to diverse clusters were identified divergent and may use in heterosis breeding programme. Of 80 random RAPD markers, 25 were found polymorphic. Three major clusters were identified using 25 polymorphic RAPD markers. The genetic similarity coefficient among genotypes ranged from 0.57 to 0.91. The average polymorphic information content (PIC) for 25 RAPD markers ranges from 0.12 to 0.40. D2-statistic, RAPD analysis and study of genotypes performance revealed sufficient genetic diversity among chickpea genotypes which would be useful in future breeding programme.


2020 ◽  
Vol 21 (10) ◽  
Author(s):  
Sri Hartati ◽  
ENDANG S. MULIAWATI

Abstract. Hartati S, Muliawati ES. 2020. Short Communication: Genetic variation of Coelogyne pandurata, C. rumphii and their hybrids based on RAPD markers. Biodiversitas 21: 4709-4713. One effort to increase the genetic diversity of orchids is by crossing. This research aims to assess the genetic variation of a hybrid orchid obtained by crossing Coelogyne pandurata and C. rumphii and their hybrids based on RAPD markers. In this research, both parents were analyzed in three replications, while the hybrid was done in 10 replications. The study was conducted by analyzing DNA bands using RAPD markers with six primers, i.e. OPA 02, OPA 07, OPA 13, OPB 12, OPB 17, and OPD 08. Identification of the parents and their F1 hybrids showed 95.83% polymorphic bands with 43 bands measuring 200-2100 bp. The parents of C. rumphii, C. pandurata, and their hybrids showed similarity range of 0.16-1.00. The crossing of C. rumphii and C. pandurata resulted in a similarity of 0.5, shown in two large clusters. The first cluster consisted only of C. pandurata males and the second cluster consisted of C. rumphii females, together with all hybrid individuals. This study succeeded in creating new hybrids of orchids that have different characters from their parents, having a genetic variation of 23%.


2021 ◽  
Vol 46 (2) ◽  
pp. 117-131
Author(s):  
Md Minhazul Abedin ◽  
Md Mostavi Enan Eshik ◽  
Nusrat Jahan Punom ◽  
Mst Khadiza Begum ◽  
Mohammad Shamsur Rahman

The freshwater air-breathing swamp eel Monopterus spp. are native to the freshwater of Bangladesh and throughout the Indian subcontinent. To identify the different swamp eel species and to check the genetic diversity among them, a total of twelve swamp eel specimens were collected from four districts (Tangail, Bogura, Bagerhat and Sylhet) representing the four division of Bangladesh. The extracted DNA from twelve fish samples was amplified by the PCR technique for DNA barcoding and RAPD analysis. Among 12 specimens, 8 specimens showed a 95-100% similarity with M. cuchia species published in the NCBI GenBank database and BOLD system. The studied mct3 (collected from Tangail region), mcs1, mcs2 and mcs3 (collected from Sylhet region) specimens showed about 83% homology with Ophisternon sp. MFIV306-10 as per BLAST search; whereas BOLD private database showed 99% similarity with Ophisternon bengalense (Bengal eel). From the phylogenetic tree analysis, 8 samples were clustered with M. cuchia and 4 samples showed similarity with Ophisternon sp. MFIV306-10 and Ophisternon bengalense _ANGBF45828-19. In RAPD-PCR based analysis, it was found that the maximum genetic distance (1.6094) was observed between mcba2 and mcs3, while between mct1 and mct2, the minimum genetic distance was 0.000. A total of 192 bands, of which 35 were polymorphic with 17.88% polymorphisms among swamp eel species and the size of the amplified DNA fragments ranged from 250 to 1800 bp. The information on DNA barcoding and RAPD analysis help measure the genetic diversity among swamp eel species, ensure the reliability of the published taxonomic information, and initiate proper management programs to conserve these vulnerable species to meet future export demand. Asiat. Soc. Bangladesh, Sci. 46(2): 117-131, December 2020


HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 498d-498
Author(s):  
Mark W. Farnham

Collard (Brassica oleracea L. var. acephala) is an important vegetable the southeastern U. S. There are few (about 10) commercial cultivars, half being open-pollinating (OP) lines, the remainder more recent F1 hybrids. There is a potential untapped B. oleracea germplasm pool in the form of collard landraces perpetuated by southeastern gardeners and farmers. To determine the amount of genetic variation among cultivars and also whether landraces represent unique genotypes, ten cultivars and eight lines or landraces were evaluated using RAPD analysis. Decamer primers were used to amplify total genomic DNA and to differentiate collard lines and other B. oleracea crop cultivars. Additionally, individuals of an OP collard cultivar and a land-race were analyzed to evaluate intra-line variation. Virtually all primers detected polymorphic bands among lines although some identified considerably more variants. Intra-line analysis indicated that OP lines are genetically broad-based populations. Many unique RAPD markers were identified in landraces indicating that the lines represent unique genotypes and that further line collection is warranted.


Author(s):  
Rodica POP ◽  
Doru PAMFIL ◽  
Monica HÂRŢA ◽  
Ioan HAŞ ◽  
Iulia POP

Genetic analysis with RAPD markers has been extensively used to determine diversity among maize genotypes. The aim of the present study was to estimate genetic relationships among 70 genotypes, provided from SCDA Turda Cluj germplasm collection. RAPD analysis was performed with 14 decamer primers. These primers generated, among the studied genotypes, a number of polymorphic bands comprised between 13 bands (OPA 04) and 7 bands (OPAL 20). The highest numbers of polymorphic bands were obtained with primer OPA 04, respectively 13 bands, following by OPO 12 (12 polymorphic bands), OPAB 11 and OPA 17 (11 polymorphic bands). Lowest number was obtained with primer OPAL 20, respectively 7 polymorphic bands. Genetic distances were established using Nei-Li coefficient and UPGMA dendrogram was constructed with RAPDistance 1.04 software. The built dendrogram shows phylogenetic relationships between genotypes analyzed.


1970 ◽  
Vol 19 (2) ◽  
pp. 119-126 ◽  
Author(s):  
Md. Sanaullah Biswas ◽  
Md. Abdullah Yousuf Akhond ◽  
Md. Al-Amin ◽  
Mahmuda Khatun ◽  
Muhammed Rezwan Kabir

RAPD technique was used as a tool for assessing genetic diversity and varietal relationships among ten varieties of eggplant. Out of 21 primers screened four were selected. With these primers 76 clear and bright fragments were obtained of which 44 fragments considered polymorphic. The proportion of polymorphic loci and gene diversity values across all loci were 57.89% and 0.23, respectively. The UPGMA dendrogram based on genetic distance segregated the ten varieties of eggplant into two main clusters. Dohazari, Kazla, Nayantara and ISD-006 were grouped together in cluster I whereas Uttara, Islampuri, Khatkhatia, Singnath, BARI Begun-08 and Eggplant Line-083 into cluster II. Kazla and Nayantara variety pair was very close to each other with the highest intervarietal similarity index (92.54%) and lowest genetic distance (0.14). On the other hand, Khatkhatia and Nayantara pair was the lowest intervarietal similarity index (41.67%) with highest genetic distance (0.48). Therefore, identification of genetically distinct varieties using RAPD markers could be a potential tool for eggplant improvement. Key words: Eggplant, Polymorphism, Genetic relationship, RAPD D.O.I. 10.3329/ptcb.v19i2.5006 Plant Tissue Cult. & Biotech. 19(2): 119-126, 2009 (December)


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