scholarly journals Molecular genetic diversity and population structure of Ethiopian white lupin landraces: Implications for breeding and conservation

PLoS ONE ◽  
2017 ◽  
Vol 12 (11) ◽  
pp. e0188696 ◽  
Author(s):  
Mulugeta Atnaf ◽  
Nasser Yao ◽  
Kyalo Martina ◽  
Kifle Dagne ◽  
Dagne Wegary ◽  
...  
2010 ◽  
Vol 333 (11-12) ◽  
pp. 793-800 ◽  
Author(s):  
Wei-Guo Zhao ◽  
Jong-Wook Chung ◽  
Young-Il Cho ◽  
Won-Hee Rha ◽  
Gi-An Lee ◽  
...  

2014 ◽  
Vol 62 (3) ◽  
pp. 175 ◽  
Author(s):  
Archana Gauli ◽  
Dorothy A. Steane ◽  
René E. Vaillancourt ◽  
Brad M. Potts

Genetic diversity and population structure of Tasmanian populations of Eucalyptus pauciflora were assessed using chloroplast and nuclear microsatellite markers. Maternal trees and open-pollinated progeny from 37 populations were sampled across the species’ geographic and altitudinal distribution in Tasmania. The distribution of chloroplast haplotype richness showed a clear geographic structure with suggestion of three major refugia (Storm Bay, Tamar Valley and St Pauls River Valley), two of which are consistent with previously reported glacial refugia. Chloroplast haplotype affinities provided evidence of migration of populations from the north and east towards the south and west of Tasmania. High nuclear microsatellite diversity was observed across the species’ range. Most of this variation was distributed within populations with low but significant FST, suggesting high gene flow among populations that is more pronounced in mature stands. Higher nuclear genetic diversity in newly colonised areas compared with lowland putative refugial regions, and the converse in chloroplast DNA markers, suggest limited seed dispersal into newly colonised regions combined with high pollen flow between different source populations in newly colonised areas. Our results do not support the suggestion that highland populations of E. pauciflora originate from in situ high-altitude refugia, but instead argue they originate from lowland refugia.


Diversity ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 247
Author(s):  
Tsegaye Getahun ◽  
Kassahun Tesfaye ◽  
Asnake Fikre ◽  
Teklehaimanot Haileslassie ◽  
Annapurna Chitikineni ◽  
...  

Chickpea (Cicer arietinum L.) is a cheap source of protein and rich in minerals for people living in developing countries. In order to assess the existing molecular genetic diversity and determine population structures in selected Ethiopian chickpea germplasm accessions (118), a set of 46 simple sequence repeat (SSR) markers equally distributed on the chickpea genome were genotyped. A total of 572 alleles were detected from 46 SSR markers, and the number of alleles per locus varied from 2 (ICCM0289) to 28 (TA22). The average number of alleles per locus, polymorphism information content, and expected heterozygosity were 12, 0.684, and 0.699, respectively. Phylogenetic analysis grouped the 118 chickpea genotypes from diverse sources into three evolutionary and/or biological groups (improved desi, improved kabuli, and landraces). The population structure analysis revealed six sub-populations from 118 chickpea genotypes studied. AMOVA revealed that 57%, 29%, and 14% of the total genetic variations were observed among individuals, within populations, and among populations. The insights into the genetic diversity at molecular levels in the Ethiopian germplasm lines can be used for designing conservation strategies as well as the diverse germplasm lines identified in this study can be used for trait dissection and trait improvement.


2006 ◽  
Vol 62 (04) ◽  
pp. 603-611
Author(s):  
H. LI ◽  
N. YANG ◽  
K. CHEN ◽  
G. CHEN ◽  
Q. TANG ◽  
...  

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