Genetic Variability, Heritability and Genetic Advance in Ethiopian Mustard (Brassica carinata A. Braun) for Leafy Vegetable Yield and Yield Related Traits
Ousman Yimer,
Wassu Mohammed,
Endale Teju
Issue:
Volume 9, Issue 2, June 2021
Pages:
22-27
Received:
18 February 2021
Accepted:
9 April 2021
Published:
29 April 2021
Abstract: Ethiopia is center of origin for Ethiopian mustard (Brsassica carinata). The crop is one of the oldest oil crops and farmers in the highlands of the country grow as a leafy vegetable in their gardens. This study was conducted to assess the genetic variability, heritability and genetic advance components among Ethiopian mustard genotypes for leaf yield and yield related traits. A total of 36 Ethiopian mustard genotypes including five check varieties which developed for seed and oil yield were evaluated for 12 quantitative traits in 6 x 6 simple lattice design at Holleta in 2017/8. The results from analysis of variance revealed the presence of significant difference among genotypes for all quantitative traits. The PCV and GCV ranged from 9.01 to 54.57% and 6.61 to 47.99%, respectively. The lowest and highest values were calculated for ratio of leaf width to length and weight of harvested per plant for both GCV and PCV. The heritability and the GAM values ranged from 53.85 to 89.93% and from 10 and 90.11%, respectively. The lowest and highest values were calculated for ratio of leaf width to length and edible vegetable leaf yield for both heritability and GAM.
Abstract: Ethiopia is center of origin for Ethiopian mustard (Brsassica carinata). The crop is one of the oldest oil crops and farmers in the highlands of the country grow as a leafy vegetable in their gardens. This study was conducted to assess the genetic variability, heritability and genetic advance components among Ethiopian mustard genotypes for leaf yi...
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The Complete Chloroplast Genome Sequence of Viburnum odoratissimum and Phylogenetic Relationship with Other Close Species in the Adoxaceae Family
Issue:
Volume 9, Issue 2, June 2021
Pages:
28-35
Received:
5 April 2021
Accepted:
27 April 2021
Published:
8 May 2021
Abstract: The chloroplast genome structure and gene content are highly conserved among land plants, providing valuable information for the studies of taxonomy and plant evolution. Viburnum odoratissimum is a well-known evergreen shrub widely distributed in Asia. It possesses excellent medicinal properties used as traditional medicine for menstrual, stomach, and kidney cramps. In this study, the complete chloroplast genome (cpDNA) of V. odoratissimum is reported and compared with five close Viburnum species and an outgroup. The cpDNA of V. odoratissimum is 158,744 bp in length and contains 130 genes with 17 genes duplicated in the inverted repeat region. The gene content, gene organization and GC content in V. odoratissimum are highly similar to other Viburnum species. A total of 270 tandem repeats is found in these plastomes, most of which are distributed in intergenic space. Differences in the location of the IR/SC boundaries reflect expansions and contractions of IR regions in all species studied. Phylogenetic analysis based on complete chloroplast genomes and the combination of barcodes indicates a sister relationship between V. odoratissimum and V. brachybotryum. Furthermore, a comparative cpDNA analysis identifies three DNA regions (trnC-petN-psbM, trnH-psbA, ndhC-trnV) containing high divergence among seven studied species that could be used as potential phylogenetic markers in taxonomic studies.
Abstract: The chloroplast genome structure and gene content are highly conserved among land plants, providing valuable information for the studies of taxonomy and plant evolution. Viburnum odoratissimum is a well-known evergreen shrub widely distributed in Asia. It possesses excellent medicinal properties used as traditional medicine for menstrual, stomach, ...
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