Genetic Diversity in Taro (Colocasia esculenta)

2019 ◽  
pp. 191-215 ◽  
Author(s):  
Susan C. Miyasaka ◽  
M. Renee Bellinger ◽  
Michael B. Kantar ◽  
Martin Helmkampf ◽  
Thomas Wolfgruber ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Colocasia Esculenta

Assessment and rationalization of genetic diversity of Papua New Guinea taro (Colocasia esculenta) using SSR DNA fingerprinting

2007 ◽  
Vol 55 (6) ◽  
pp. 811-822 ◽  
Author(s):  
D. Singh ◽  
E. S. Mace ◽  
I. D. Godwin ◽  
P. N. Mathur ◽  
T. Okpul ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Dna Fingerprinting ◽  
Papua New Guinea ◽  
New Guinea ◽  
Colocasia Esculenta

scholarly journals Genetic diversity and population structure of eddoe taro in China using genome-wide SNP markers

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e10485
Author(s):  
Zhixin Wang ◽  
Yalin Sun ◽  
Xinfang Huang ◽  
Feng Li ◽  
Yuping Liu ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Population Structure ◽  
Germplasm Conservation ◽  
Principal Component ◽  
Snp Markers ◽  
Colocasia Esculenta ◽  
Single Nucleotide ◽  
Genome Wide ◽  
Entire Collection ◽  
Tuber Crop

Taro (Colocasia esculenta) is an important root and tuber crop cultivated worldwide. There are two main types of taro that vary in morphology of corm and cormel, ‘dasheen’ and ‘eddoe’. The eddoe type (Colocasia esculenta var. antiquorium) is predominantly distributed throughout China. Characterizing the genetic diversity present in the germplasm bank of taro is fundamental to better manage, conserve and utilize the genetic resources of this species. In this study, the genetic diversity of 234 taro accessions from 16 provinces of China was assessed using 132,869 single nucleotide polymorphism (SNP) markers identified by specific length amplified fragment-sequencing (SLAF-seq). Population structure and principal component analysis permitted the accessions to be categorized into eight groups. The genetic diversity and population differentiation of the eight groups were evaluated using the characterized SNPs. Analysis of molecular variance showed that the variation among eight inferred groups was higher than that within groups, while a relatively small variance was found among the two morphological types and 16 collection regions. Further, a core germplasm set comprising 41 taro accessions that maintained the genetic diversity of the entire collection was developed based on the genotype. This research is expected to be valuable for genetic characterization, germplasm conservation, and breeding of taro.

Analysis of genetic diversity in Phytophthora colocasiae causing leaf blight of taro (Colocasia esculenta) using AFLP and RAPD markers

2013 ◽  
Vol 64 (1) ◽  
pp. 185-197 ◽  
Author(s):  
Vishnu Sukumari Nath ◽  
Muthukrishnan Senthil Alias Sankar ◽  
Vinayaka Mahabaleswar Hegde ◽  
Muthulekshmi Lajapathy Jeeva ◽  
Raj Shekar Misra ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Rapd Markers ◽  
Colocasia Esculenta ◽  
Leaf Blight ◽  
Phytophthora Colocasiae

Genetic diversity among taro (Colocasia esculenta (L.) Schott var. antiquorum) germplasm- A review

2018 ◽  
Vol 39 (2) ◽  
Author(s):  
Khushboo Kathayat ◽  
M. L. Kushwaha ◽  
Monisha Rawat
Keyword(s):  
Genetic Diversity ◽  
Quantitative Traits ◽  
Crop Improvement ◽  
Colocasia Esculenta ◽  
Path Coefficient ◽  
Detailed Knowledge ◽  
Vegetable Crops ◽  
Commercial Cultivation ◽  
The World ◽  
Improvement Programme

Taro (Colocasia esculenta (L.) is one of the important underground vegetable crops grows vegetatively in various parts of India as well as in Africa. But there are few standard cultivars available for commercial cultivation and local germplasms across various parts of the world have a lot of genetic variation. For any crop improvement programme, aimed to achieve maximum productivity, a detailed knowledge of facts such as genetic variability, genetic diversity, heritability, genetic advance, correlation and path coefficient of various quantitative traits and their contribution towards yield is essential. Studies in this direction are very less and can not to be generalized for every climatic condition and with other genetic materials. Hence, the information in a collection of some indigenous genotypes of taro in order to formulate a sound breeding plan for its improvement has been reviewed here.

Genetic diversity of taro (Colocasia esculenta (L.) Schott) in Vanuatu (Oceania): an appraisal of the distribution of allelic diversity (DAD) with SSR markers

2011 ◽  
Vol 59 (5) ◽  
pp. 805-820 ◽  
Author(s):  
Julie Sardos ◽  
Jean-Louis Noyer ◽  
Roger Malapa ◽  
Sophie Bouchet ◽  
Vincent Lebot
Keyword(s):  
Genetic Diversity ◽  
Ssr Markers ◽  
Allelic Diversity ◽  
Colocasia Esculenta

Nature of taro (Colocasia esculenta (L.) Schott) genetic diversity prevalent in a Pacific Ocean island, Vanua Lava, Vanuatu

2006 ◽  
Vol 53 (6) ◽  
pp. 1273-1289 ◽  
Author(s):  
S. Caillon ◽  
J. Quero-Garcia ◽  
J.-P. Lescure ◽  
V. Lebot
Keyword(s):  
Genetic Diversity ◽  
Pacific Ocean ◽  
Colocasia Esculenta ◽  
Ocean Island

Genetic diversity of taro, Colocasia esculenta (L.) Schott, in Southeast Asia and the Pacific

2004 ◽  
Vol 109 (4) ◽  
pp. 761-768 ◽  
Author(s):  
C. M. Kreike ◽  
H. J. Van Eck ◽  
V. Lebot
Keyword(s):  
Genetic Diversity ◽  
Southeast Asia ◽  
Colocasia Esculenta ◽  
The Pacific

Genetic diversity in Taro (Colocasia esculenta Schott, Araceae) in China: An ethnobotanical and genetic approach

2001 ◽  
Vol 55 (1) ◽  
pp. 14-31 ◽  
Author(s):  
Xu Jianchu ◽  
Yang Yongping ◽  
Pu Yingdong ◽  
W. G. Ayad ◽  
P. B. Eyzaguirre
Keyword(s):  
Genetic Diversity ◽  
Colocasia Esculenta ◽  
Genetic Approach

scholarly journals Genetic diversity in Eddoe Taro (Colocasia esculenta var. antiquorum) from Indonesia based on morphological and nutritional characteristics

2020 ◽  
Vol 21 (8) ◽  
Author(s):  
Delvi Maretta ◽  
Sobir Sobir ◽  
Is Helianti ◽  
Purwono Purwono ◽  
Edi Santosa
Keyword(s):  
Genetic Diversity ◽  
Crop Improvement ◽  
Colocasia Esculenta ◽  
Growth And Yield ◽  
Clonal Variation ◽  
Petiole Length ◽  
Genotypic Variance ◽  
Experimental Station ◽  
Quantitative Characters ◽  
Nutritional Characteristics

Abstract. Maretta D, Sobir Helianti I, Purwono, Santosa E. 2020. Genetic diversity in Eddoe Taro (Colocasia esculenta var antiquorum) from Indonesia based on morphological and nutritional characteristics. Biodiversitas 21: 3525-3533. Low yield uniformity and quality due to genetic performance become negative incentives to farmers in Eddoe Taro production. However, genetic evaluation is rarely been reported in this taro type in Indonesia. In this study, 14 eddoe genotypes collected from different regions in Indonesia were evaluated to develop a diversity map for crop improvement and future breeding activities. The genotypes were planted in the open field from September 2018 to March 2019 at the experimental station belonging to LAPTIAB-BPPT, PUSPITEK at South Tangerang District, Indonesia. Morphological and nutritional characters were accessed on the shoot and underground parts. The genotypes exhibited variation in 38 out of 48 characters in which 12 quantitative characters were distinct including oxalate level. The study revealed three findings: (i) Characters related to growth and yield had high genotypic variance coefficients, i.e., sheath length, total petiole length, plant height, number of suckers, corm and cormels weight, (ii) Genotypes clustered into two separate groups as introduced and landraces, and (iii) Landraces had high genetic variation leading to speculation of high clonal variation. Considering the findings, accession S6, S7, S18, S30, and S36 are recommended for further studies in crop improvement purposes.

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