Genetic diversity of Greek Aegilops species using different types of nuclear genome markers

Thomas, Konstantinos; Bebeli, Penelope J.

doi:10.1016/j.ympev.2010.04.041

Cited by 27 publications

(18 citation statements)

References 44 publications

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“…This is a direct result of the presence of numerous fragments with a high (above 0.9) frequency. Similar values of PIC (0.21) were reported by Thomas and Bebeli (2010) for Aegilops species.…”

Section: Issr Informativenesssupporting

confidence: 86%

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Genetic diversity among Polish landraces of common oat (Avena sativa L.)

Boczkowska

Tarczyk

2013

Genet Resour Crop Evol

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All over the world about 220,000 accessions of the genus Avena is preserved in gene banks. Polish oats collection, in the National Centre for Plant Genetic Resources, consists of about 2,500 accessions. More than 80 % of them belong to the species Avena sativa. Only 136 accessions have the landrace or traditional cultivar status and 91 of them were collected in Poland. The main objective of this study was to estimate genetic diversity of a set of 67 Polish landraces using inter simple sequence repeat (ISSR) markers. We also tried to determine whether genetic diversity depended on the region and altitude of collection site and if there was a relationship between DNA polymorphism and some morphological traits. The accessions were collected between years 1973 and 1999 from areas of Northern, Southern and Eastern Poland. The obtained results indicated a relatively low diversity (0.09-0.37) of the common oat landraces. Analysis of molecular variation (AMOVA) showed that there were no significant differences within designated geographic regions. It indicated that at the same time the altitude of collection site had significant effect on the genetic differentiation of the accessions. AMOVA also showed the presence of variance between groups formed on the basis of the colour of lemma. White lemma accessions were also characterized by highest genetic distinctiveness. Considering the evident impact of local climatic conditions on the genetic distinctiveness of Polish landraces utility of them in the Polish breeding programs should be considered.

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Section: Issr Informativenesssupporting

confidence: 86%

“…It has confirmed the presence of a strong positive correlation between the Dice, Jaccard and SM analysis results. Similar conclusions were presented by Thomas and Bebeli (2010). In connection with the fact that most of Avena genetic diversity studies based on Dice coefficient, the results were also processed that way.…”

Section: Genetic Diversitysupporting

confidence: 70%

Genetic diversity among Polish landraces of common oat (Avena sativa L.)

Boczkowska

Tarczyk

2013

Genet Resour Crop Evol

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“…Comparable results were obtained when the same set of primers was used in the study of Polish oat landraces (Boczkowska and Tarczyk 2013). Also for goatgrass (Thomas and Bebeli 2010) and wheat (Najaphy et al 2012) comparable values of PIC were received. The only RAPD primer used in the study was characterized by PIC value equal to 0.25 and it was significantly higher than the average PIC value obtained for Syrian wheat cultivars (Saleh 2012).…”

Section: Marker Usefulnessmentioning

confidence: 83%

Assessing genetic diversity in 23 early Polish oat cultivars based on molecular and morphological studies

Boczkowska

Nowosielski

Nowosielska

et al. 2014

Genet Resour Crop Evol

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In Poland oat breeding began at the late nineteenth century. During the World War II almost all of Polish breeding materials were lost, and then were replaced by German cultivars. The main aim of this paper was to show the level of genetic diversity of Polish oat cultivars which were bred before 1939. Simultaneously usefulness and informativeness of molecular and morphological methods were tested and compared. This study involved 23 cultivars, which were described by 25 morphological traits and three types of molecular markers (AFLP, ISSR and RAPD). Based on Dice coefficient, genetic distance between cultivars ranged from 0.17 to 0.44. The degree of morphological differentiation within the collection varied depending on trait. Nei's genetic diversity for the combined results for the whole collection was equal to 0.202. Neither unweighted pair group method with arithmetic mean nor principal coordinate analysis showed any discrimination of cultivars according to breeding period and morphological trait. Part of morphological diversity has been preserved in the Polish early oat cultivars, do not exist anymore in contemporary cultivars, and also in landraces. The interest of breeders in early cultivars germplasm stored in genebank was and still is negligible. Breeding is confined to a few preferred by market morphotypes. So, it is very probable that the gene pools of early and contemporary cultivars could be separable.

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“…We also analyzed by combining the data of each of these marker systems. Combined marker data have been tested in other plant species, including Aegilops (Thomas and Bebeli 2010), Brasenia schreberi (Kim et al 2008), Sorghum bicolor (Medraoui et al 2007) and Podophyllum hexandrum (Naik et al 2010).…”

Section: Discussionmentioning

confidence: 99%

Genetic relationships between KoreanCalanthespecies and some naturally occurring mutants based on multiple DNA markers

Srikanth

Koo

Whang

2013

Nordic Journal of Botany

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RAPD, ISSR and AFLP were used to assess the genetic relationships among Korean Calanthe (Orchidaceae) species. Sixteen accessions belonging to five native Calanthe species and some spontaneous mutants were studied. The mutants clustered with C. sieboldii, indicating that they are genetically closer to C. sieboldii than to the rest of the species. Calanthe bicolor clustered with C. discolor, suggesting that its genetic composition is close to that of C. discolor. Though it is suggested to have originated as a result of natural hybridization between C. sieboldii and C. discolor, introgression is likely to have occurred in the direction of C. discolor. Calanthe reflexa and C. aristulifera were the most genetically differentiated of the species studied. We identified 117, 42, 50 putative makers via RAPD, ISSR and AFLP analysis, respectively.

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Genetic diversity of Greek Aegilops species using different types of nuclear genome markers

Cited by 27 publications

References 44 publications

Genetic diversity among Polish landraces of common oat (Avena sativa L.)

Genetic diversity among Polish landraces of common oat (Avena sativa L.)

Assessing genetic diversity in 23 early Polish oat cultivars based on molecular and morphological studies

Genetic relationships between KoreanCalanthespecies and some naturally occurring mutants based on multiple DNA markers

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