scholarly journals Genetic Diversity of Local and Introduced Sweet Potato [Ipomoea batatas (L.) Lam.] Collections for Agro-morphology and Physicochemical Attributes in Ethiopia

2015 ◽  
Vol 4 (1) ◽  
pp. 9 ◽  
Author(s):  
W Mohammed ◽  
S Ali ◽  
B Shimelis ◽  
S Burga
Keyword(s):  
Genetic Diversity ◽  
Sweet Potato ◽  
Ipomoea Batatas

scholarly journals GENETIC DIVERSITY AMONG SWEET POTATO CROPS CULTIVATED BY TRADITIONAL FARMERS

2018 ◽  
Vol 31 (3) ◽  
pp. 779-790 ◽  
Author(s):  
PABLO FORLAN VARGAS ◽  
ERIC WATZKE ENGELKING ◽  
LUIS CARLOS FERREIRA DE ALMEIDA ◽  
ELIEL ALVES FERREIRA ◽  
HAMILTON CESAR DE OLIVERIA CHARLO
Keyword(s):  
Genetic Diversity ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Block Design ◽  
Genetic Material ◽  
Morphological Characteristics ◽  
Leaf Size ◽  
Stem Length ◽  
Phenotypic Correlation ◽  
Crop Species

ABSTRACT The genetic variability within the crop species Ipomoea batatas is broad, hence, in order to support future breeding programs it is of the utmost importance that germplasm banks be created, conserved, and characterized. Therefore, the objective of this work was to rescue and evaluate the genetic divergence in sweet potato accessions collected in traditional communities of Vale do Ribeira Paulista. Sweet potato samples were collected from quilombos, indigenous villages, caiçaras communities, and small farms. The study was conducted between February 2013 and August 2014 in a randomized block design with three replications. Genetic material included 95 collected accessions and two commercial cultivars. Morphological characteristics of the accessions were evaluated and distances in the genetic distance matrix were estimated by means of multi-category variables, the data being subsequently clustered by the Tocher method. Analysis of the relative contribution of each characteristic and phenotypic correlation of descriptors was also performed. Results evidenced wide genetic diversity among the sweet potato accessions collected in Vale do Ribeira, which were not grouped according to the collection point. The descriptors that contributed more than 60% of genetic diversity included: leaf size, general leaf profile, immature leaf color, petiole pigmentation, predominant branch color, branch secondary color, stem length, cortical thickness, predominant periderm color, and periderm color intensity. Correlations between morphological descriptors was observed in 22.26% of the paired traits.

scholarly journals Genetic diversity in Brazilian sweet potato (Ipomoea batatas (L.) Lam., Solanales, Convolvulaceae) landraces assessed with microsatellite markers

2008 ◽  
Vol 31 (3) ◽  
pp. 725-733 ◽  
Author(s):  
Elizabeth Ann Veasey ◽  
Aline Borges ◽  
Mariana Silva Rosa ◽  
Jurema R. Queiroz-Silva ◽  
Eduardo de Andrade Bressan ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Microsatellite Markers ◽  
Sweet Potato ◽  
Ipomoea Batatas

Genetic diversity analysis of sweet potato [Ipomoea batatas (L.) Lam.] germplasms through RAPD and ISSR markers

2021 ◽  
Vol 50 (1) ◽  
pp. 119-129
Author(s):  
PN Narasimha Murthy ◽  
NB Patel ◽  
Chintan Kapadia ◽  
KD Desai ◽  
G Koteswara Rao
Keyword(s):  
Genetic Diversity ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Genetic Relatedness ◽  
Issr Markers ◽  
Diversity Analysis ◽  
Genetic Diversity Analysis ◽  
Polymorphic Loci ◽  
Improvement Programme ◽  
Rapd And Issr

Sweet potato [Ipomoea batatas (L.) Lam.] germplasms are unique as they are heterozygous, vegitatively as well as sexually propagated and polyploid in nature. Forty-four germplasms from local farmer’s field and from various centres of India were determined using 15 RAPD and 15 ISSR markers to evaluate their genetic relatedness. Average polymorphisms for RAPD and ISSR markers were found to be 86.72 and 81.64%, respectively. The OPM series primer produced 145 total bands with 138 polymorphic loci and ISSR markers gave 116 total bands with 101 polymorphic loci. The clusters were made using the UPGMA method using both the RAPD and ISSR data and group diverse yet similar germplasm in two different clusters. This gives ample information to use them in further improvement programme.

Analysis of genetic diversity in a sweet potato (Ipomoea batatas L.) germplasm collection from Tanzania as revealed by AFLP

2007 ◽  
Vol 55 (3) ◽  
pp. 397-408 ◽  
Author(s):  
Abdelhameed Elameen ◽  
Siri Fjellheim ◽  
Arild Larsen ◽  
Odd Arne Rognli ◽  
Leif Sundheim ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Germplasm Collection

scholarly journals On the origin of sweet potato (Ipomoea batatas (L.) Lam.) genetic diversity in New Guinea, a secondary centre of diversity

Heredity ◽  
2013 ◽  
Vol 110 (6) ◽  
pp. 594-604 ◽  
Author(s):  
C Roullier ◽  
R Kambouo ◽  
J Paofa ◽  
D McKey ◽  
V Lebot
Keyword(s):  
Genetic Diversity ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
New Guinea ◽  
Centre Of Diversity

scholarly journals Studies on Genetic Diversity for Yield, Growth and Quality Traits in Sweet Potato [Ipomoea batatas (L.) Lam.]

2017 ◽  
Vol 4 (4) ◽  
pp. 113-117
Author(s):  
Devesh Pratap Singh ◽  
Chandra Deo ◽  
Deepak Kumar Gautam ◽  
Rajesh Kumar ◽  
Pushpendra Kumar
Keyword(s):  
Genetic Diversity ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Quality Traits

scholarly journals DIVERSITAS GENETIK KERABAT LIAR UBI JALAR IPOMOEA TRIFIDA (H.B.K.) G.DON. BERUMBI ASAL CITATAH JAWA BARAT BERDASARKAN KARAKTER KROMOSOM (Genetic Diversity Of Wild Relative Of Sweet Potato Tubered-Ipomoea Trifida (H.B.K.) G.don. Originated From Citatah West Java Based On Chromosome Characters)

2013 ◽  
Vol 3 (3) ◽  
Author(s):  
Tia Setiawati
Keyword(s):  
Genetic Diversity ◽  
Principal Component Analysis ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Principal Component ◽  
Component Analysis ◽  
West Java ◽  
Ipomoea Trifida ◽  
Plant Materials ◽  
Materials Used

AbstrakKerabat liar ubi jalar Ipomoea trifida asal Citatah Jawa Barat potensial digunakan dalam program pemuliaan tanaman ubi jalar (Ipomoea batatas (L.) Lam.) Untuk mengetahui diversitas genetik I. trifida  dilakukan pengamatan terhadap karakter kromosom. Bahan tanaman yang digunakan  adalah 10 spesies I. trifida berumbi. Hubungan kekerabatan antar spesies diketahui melalui analisis klaster dan Analisis Komponen Utama/Principal Component Analysis (PCA). Hasil pengamatan menunjukkan pengujian pada 10 aksesi I. trifida berumbi dengan menggunakan 9 karakter kromosom menghasilkan jarak ketidakmiripan (Euclidean coeffisien) yang berkisar 1,75 – 6,22 dan menunjukkan diversitas yang luas. Dendogram yang dihasilkan pada jarak ketidakmiripan 5,23 menunjukkan terbentuknya 3 klaster utama. Analisis Komponen Utama (PCA) menghasilkan 2 komponen utama pertama (PC1 dan PC2) yang telah dapat menjelaskan 89,64% dari total variasi. Kata kunci : Ipomoea trifida, Analisis Klaster, Analisis Komponen UtamaAbstractWild relatives of sweet potato, Ipomoea trifida originated from Citatah West Java was potential use in plant breeding programs of Ipomoea batatas (L.) Lam. To determine the genetic diversity of I. trifida, observation on characters of chromosomes of I.trifida was conducted. Plant materials used ten accessions  of tubered-I. trifida. Relationship between species identified by cluster analysis and Principal Component Analysis (PCA). The results showed that the observation on the 10 accession of tubered-I. trifida using 9 characters chromosome produces dissimilarities distance (Euclidean coefficient) ranging from 1.75 to 6.22. Dendogram generated  at a dissimilarity distance of 5.23 showed the formation of three main clusters. Principal Component Analysis (PCA) produced first two principal component (PC1 and PC2), which has been able to explain 89.64% of the total variation.Keyword  : Ipomoea trifida, Clustering Analysis, Principal Component Analysis

scholarly journals Assessment of Genetic Diversity and Variety Identification Based on Developed Retrotransposon-Based Insertion Polymorphism (RBIP) Markers in Sweet Potato (Ipomoea Batatas (L.) Lam)

2021 ◽  
Author(s):  
Yusha Meng ◽  
Wenjin Su ◽  
Yanping Ma ◽  
Lei Liu ◽  
Xingguo Gu ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Genetic Variation ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Variety Identification ◽  
Insertion Polymorphism ◽  
Ltr Retrotransposon ◽  
Germplasm Resources ◽  
Ltr Retrotransposons ◽  
Crop Species

Abstract Sweet potato, a dicotyledonous and perennial plant, is the third most crucial tuber/root crop species behind potato and cassava in terms of production. Long terminal repeat (LTR) retrotransposons are highly abundant in sweet potato, contributing to genetic diversity. These LTR retrotransposons play a significant role in sweet potato genotypes. Retrotransposon-based insertion polymorphism (RBIP) is a high-throughput marker system to study the genetic diversity of plant species. To date, there have been no transposon marker-based genetic diversity analyses of sweet potato. We report a structure-based analysis of the sweet potato genome for the main LTR-retrotransposon subfamilies, Ty3-gypsy and Ty1-copia, which revealed a total of 21555 LTR retrotransposons. By searching using hidden Markov models (HMMs), 1616 LTR retrotransposon sequences containing at least two models were found. A total of 48 RBIP primers were synthesized based on the high copy numbers of conserved LTR sequences. RBIP markers of the genetic diversity and population structure of 105 sweet potato germplasm resources revealed 56 amplicons with an average polymorphism of 91.07%. Sweet potato accessions were collected from 6 provinces of China, Japan and America. A UPGMA dendrogram, a model-based genetic structure and principal component analysis (PCA) divided the sweet potato germplasms into 3 groups containing 8, 53, and 44 germplasms. All three analyses produced significant groupwise consensus. However, almost all the germplasms contained only one primary locus. The analysis of molecular variance (AMOVA) among the groups indicated higher intergroup genetic variation (53%) than intrapopulation genetic variation. In addition, long-term self-retention may cause some germplasm resources to exhibit variable segregation. These results suggest that these sweet potato germplasms are not well evolutionarily diversified, although geographic speciation could have occurred at a limited level. This study highlights the utility of RBIP markers for determining the intraspecies variability of sweet potato.

scholarly journals A comparison of RAPD and ISSR markers reveals genetic diversity among sweet potato landraces (Ipomoea batatas (L.) Lam.)

2012 ◽  
Vol 34 (2) ◽  
Author(s):  
Monique Moreira Moulin ◽  
Rosana Rodrigues ◽  
Leandro Simões Azeredo Gonçalves ◽  
Cláudia Pombo Sudré ◽  
Messias Gonzaga Pereira
Keyword(s):  
Genetic Diversity ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Issr Markers ◽  
Rapd And Issr

scholarly journals Genetic Diversity of Sweet Potato (Ipomoea batatas L. Lam) Germplasms Collected Worldwide Using Chloroplast SSR Markers

Agronomy ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 752 ◽  
Author(s):  
Kyung Jun Lee ◽  
Gi-An Lee ◽  
Jung-Ro Lee ◽  
Raveendar Sebastin ◽  
Myoung-Jae Shin ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Germplasm Collection ◽  
Diversity Indices ◽  
Management Plan ◽  
Shannon Index ◽  
Efficient Management ◽  
The Usa ◽  
Chloroplast Ssr

Sweet potato (Ipomoea batatas L. Lam) is an important food crop widely cultivated in the world. In this study, nine chloroplast simple sequence repeat (cpSSR) markers were used to analyze the genetic diversity and relationships of 558 sweet potato accessions in the germplasm collection of the National Agrobiodiversity Center (NAC). Eight of the nine cpSSR showed polymorphisms, while Ibcp31 did not. The number of alleles per locus ranged from two to four. In general, the Shannon index for each cpSSR ranged from 0.280 to 1.123 and the diversity indices and unbiased diversity ranged from 0.148 to 0.626, and 0.210 to 0.627, respectively. Results of the median-joining network showed 33 chlorotypes in 558 sweet potato accessions. In factor analysis, 558 sweet potato accessions were divided into four clusters, with clusters I and II composed only of the sweet potato accessions from Korea, Japan, Taiwan, and the USA. The results of this study confirmed that the genetic diversity of the female parents of sweet potato accessions conserved at the NAC is low and therefore more sweet potato accessions need to be collected. These results will help to establish an efficient management plan for sweet potato genetic germplasms at the NAC.

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