Potential Genotypes of the 1995 RRIM Hevea Germplasm Collection for Future Rubber Breeding and Selection Programme

2017 ◽  
Vol 20 (4) ◽  
pp. 242-260 ◽  
Author(s):  
A. F. Adifaiz ◽  
N. A. Maiden ◽  
N. Aizat Shamin ◽  
A. G. Zarawi ◽  
M. Y. Rafii
Keyword(s):  
Germplasm Collection ◽  
Selection Programme ◽  
1995 Rrim Hevea Germplasm

Genetic Diversity of the 1995 RRIM Hevea Germplasm Collection for Utilisation in the Rubber Breeding Programme

2018 ◽  
Vol 21 (2) ◽  
pp. 153-164 ◽  
Author(s):  
A. F. Adifaiz ◽  
N. A. Maiden ◽  
N. Aizat Shamin ◽  
S. Roslinda ◽  
Z. Suleiman ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Germplasm Collection ◽  
Breeding Programme ◽  
1995 Rrim Hevea Germplasm

Variation of antioxidant activity and polyphenol content in safflower (Carthamus tinctorious) germplasm collection

Planta Medica ◽  
2015 ◽  
Vol 81 (16) ◽  
Author(s):  
J Sung ◽  
H Ko ◽  
O Hur ◽  
J Lee ◽  
Y Jeon ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Germplasm Collection ◽  
Polyphenol Content

Study of genetic diversity in wild raspberry (Rubus idaeus L.) germplasm collection using morphological characters and RAPD markers

Biologija ◽  
2008 ◽  
Vol 54 (2) ◽  
pp. 66-74 ◽  
Author(s):  
Jolanta Patamsytė ◽  
Donatas Žvingila ◽  
Juozas Labokas ◽  
Virgilijus Baliuckas ◽  
Laimutė Balčiūnienė ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Rapd Markers ◽  
Germplasm Collection ◽  
Morphological Characters ◽  
Rubus Idaeus

PROSPECTS FOR THE USE OF REMOTE CROSS IN THE CITRUS CROPS SELECTION

1970 ◽  
pp. 46-49 ◽  
Author(s):  
R. V. Kulyan
Keyword(s):  
Complex Traits ◽  
Germplasm Collection ◽  
Early Maturity ◽  
Russian Research Institute ◽  
Citrus Germplasm ◽  
The Status ◽  
New Varieties ◽  
Primary Test ◽  
Growing Conditions ◽  
Positive Traits

The Russian Research Institute of Floriculture and Subtropical Crops has the citrus germplasm collection, in total over 150 genotypes of various origins including 30 wild and semi-wild relatives. As a result of controlled hybridization in 17 crossings combinations of with the participation of relatives of citrus plants, new 769 hybrid offspring were obtained, which combine the traits of both the maternal and paternal genotypes. Analyzing the populations, promising combinations were highlighted: C. reticulata × Fortunella margarita (47.1%); C. x natsudaidai × 3252 (42.1%) and C. reticulata × C. reticulata ‘Cleopatra’ (40.9%) to create the gene pool of distant hybrids. From the mentioned combinations of crossings the greatest percent of seedlings which phenotypes tend to cultivated varieties was received. This hybrid material is a valuable source for isolating forms that are resistant to extreme environmental factors. According to phenotypic characteristics, hybrids were divided into three categories: I – Cultural, II – Semi-wild and III – Wild. Of the first category, the largest number 87 prospective forms were selected, and can be of interest for further breeding. As a result of the study of interspecific hybrid seedlings, 137 promising forms have been identified, which are carriers the complex traits such as dwarfism, thornless, early maturity and increased winter hardiness. From this set 17 genotypes were selected, which received the status of an elite forms, which successfully pass the primary test, and will be also useful in further breeding work for creating sources with a complex of positive traits and on breeding new varieties of citrus crops resistant to growing conditions.

Genetic diversity of a germplasm collection of Cucumis melo L. using SRAP markers

2010 ◽  
Vol 32 (7) ◽  
pp. 744-751 ◽  
Author(s):  
Yun CHEN ◽  
Guan LI ◽  
Xian-Lei WANG
Keyword(s):  
Genetic Diversity ◽  
Cucumis Melo ◽  
Germplasm Collection ◽  
Srap Markers

Genetic Analysis of Chinese Cucumber Collections in the U.S. National Germplasm Collection

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 534e-534 ◽  
Author(s):  
J. Staub ◽  
Felix Sequen ◽  
Tom Horejsi ◽  
Jin Feng Chen
Keyword(s):  
Genetic Diversity ◽  
Principal Component Analysis ◽  
Genetic Variation ◽  
Genetic Analysis ◽  
Allelic Variation ◽  
Germplasm Collection ◽  
Principal Component ◽  
Isozyme Loci ◽  
National Plant Germplasm System ◽  
The U.S

Genetic variation in cucumber accessions from China was assessed by examining variation at 21 polymorphic isozyme loci. Principal component analysis of allelic variation allowed for the depiction of two distinct groupings of Chinese accessions collected in 1994 and 1996 (67 accessions). Six isozyme loci (Gpi, Gr, Mdh-2, Mpi-2, Pep-gl, and Pep-la) were important in elucidating these major groups. These groupings were different from a single grouping of Chinese 146 accessions acquired before 1994. Allelic variation in Chinese accessions allowed for comparisons with other accessions in the U.S. National Plant Germplasm System (U.S. NPGS) collection grouped by continent and sub-continent. When Chinese accessions taken collectively were compared with an array of 853 C. sativus U.S. NPGS accessions examined previously, relationships differed between accessions grouped by country or subcontinent. Data indicate that acquisition of additional Chinese and Indian cucumber accessions would be strategically important for increasing genetic diversity in the U.S. NPGS cucumber collection.

Anthracnose Resistance of the Cucumber Germplasm Collection in North Carolina Field Tests

Crop Science ◽  
1995 ◽  
Vol 35 (1) ◽  
pp. 228-236 ◽  
Author(s):  
Todd C. Wehner ◽  
Paul C. St. Amand
Keyword(s):  
North Carolina ◽  
Germplasm Collection ◽  
Field Tests ◽  
Anthracnose Resistance

scholarly journals Identification of Novel Sources of Resistance to Seed Weevils (Bruchus spp.) in a Faba Bean Germplasm Collection

2019 ◽  
Vol 9 ◽  
Author(s):  
Estefanía Carrillo-Perdomo ◽  
Blandine Raffiot ◽  
Damien Ollivier ◽  
Chrystel Deulvot ◽  
Jean-Bernard Magnin-Robert ◽  
...  
Keyword(s):  
Faba Bean ◽  
Germplasm Collection ◽  
Sources Of Resistance

scholarly journals Fine-tuning the performance of ddRAD-seq in the peach genome

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Maximiliano Martín Aballay ◽  
Natalia Cristina Aguirre ◽  
Carla Valeria Filippi ◽  
Gabriel Hugo Valentini ◽  
Gerardo Sánchez
Keyword(s):  
Germplasm Collection ◽  
In Silico Analysis ◽  
Genotyping By Sequencing ◽  
Fine Tuning ◽  
The Novel ◽  
Peach Genome ◽  
Genome Complexity ◽  
Next Generation Sequencing Ngs ◽  
Sample Set ◽  
Silico Analysis

AbstractThe advance of Next Generation Sequencing (NGS) technologies allows high-throughput genotyping at a reasonable cost, although, in the case of peach, this technology has been scarcely developed. To date, only a standard Genotyping by Sequencing approach (GBS), based on a single restriction with ApeKI to reduce genome complexity, has been applied in peach. In this work, we assessed the performance of the double-digest RADseq approach (ddRADseq), by testing 6 double restrictions with the restriction profile generated with ApeKI. The enzyme pair PstI/MboI retained the highest number of loci in concordance with the in silico analysis. Under this condition, the analysis of a diverse germplasm collection (191 peach genotypes) yielded 200,759,000 paired-end (2 × 250 bp) reads that allowed the identification of 113,411 SNP, 13,661 InDel and 2133 SSR. We take advantage of a wide sample set to describe technical scope of the platform. The novel platform presented here represents a useful tool for genomic-based breeding for peach.

scholarly journals Genetic diversity and population structure of ridge gourd (Luffa acutangula) accessions in a Thailand collection using SNP markers

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Grimar Abdiel Perez ◽  
Pumipat Tongyoo ◽  
Julapark Chunwongse ◽  
Hans de Jong ◽  
Anucha Wongpraneekul ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Population Structure ◽  
Germplasm Collection ◽  
Snp Markers ◽  
Fixation Index ◽  
Breeding Programs ◽  
Total Fixation ◽  
Unrooted Phylogenetic Tree ◽  
Luffa Acutangula ◽  
Selection Of

AbstractThis study explored a germplasm collection consisting of 112 Luffa acutangula (ridge gourd) accessions, mainly from Thailand. A total of 2834 SNPs were used to establish population structure and underlying genetic diversity while exploring the fruit characteristics together with genetic information which would help in the selection of parental lines for a breeding program. The study found that the average polymorphism information content value of 0.288 which indicates a moderate genetic diversity for this L. acutangula germplasm. STRUCTURE analysis (ΔK at K = 6) allowed us to group the accessions into six subpopulations that corresponded well with the unrooted phylogenetic tree and principal coordinate analyses. When plotted, the STRUCTURE bars to the area of collection, we observed an admixed genotype from surrounding accessions and a geneflow confirmed by the value of FST = 0.137. AMOVA based on STRUCTURE clustering showed a low 12.83% variation between subpopulations that correspond well with the negative inbreeding coefficient value (FIS =  − 0.092) and low total fixation index (FIT = 0.057). There were distinguishing fruit shapes and length characteristics in specific accessions for each subpopulation. The genetic diversity and different fruit shapes in the L. acutangula germplasm could benefit the ridge gourd breeding programs to meet the demands and needs of consumers, farmers, and vegetable exporters such as increasing the yield of fruit by the fruit width but not by the fruit length to solve the problem of fruit breakage during exportation.

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