Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Population structure and diversity in valencia peanut germplasm collection
Crop Science, Volume 51, No. 3, Year 2011
Notification
URL copied to clipboard!
Description
Valencia peanuts [Arachis hypogaea L. subsp. fastigiata Waldron var. fastigiata (Waldron) Krapov. & W. C. Greg.] are well known for their in-shell market value. Assessment of genetic diversity is key to the success of developing improved cultivars with desirable agronomic and quality traits. Seventy-eight U.S. Valencia core collection accessions together with 36 Valencia accessions representing the global peanut mini-core collection were used to study population structure and diversity and to identify genetically diverse Valencia germplasm for use in peanut breeding. Fifty-two simple sequence repeats loci amplified 683 alleles, with an average of 13 alleles per locus. The mean polymorphism information content and gene diversity, respectively, were 0.270 and 0.335. The pair wise genetic distance ranged from 0.143 to 0.474, with an average of 0.631. Neighbor-joining clustering, principal coordinate analysis, and STRUCTURE analysis consistently separated the Valencia germ plasm into five clusters with two distinct major groups. The first major group consisted of genotypes from South America (64%) with few accessions from Africa, North America, Caribbean, and European regions. The second group consisted of accessions mostly from diverse regions of Africa, North and South America, Asia, and the Caribbean. However, the structuring was not related to the geographic origin and several admixtures were observed. The information generated in this study and phenol typing of this material for biotic and abiotic stress responses and yield-quality traits will facilitate selection of trait-specific, genetically diverse parents for developing Valencia peanut cultivars with a broad genetic base. © Crop Science Society of America.
Authors & Co-Authors
Kottapalli, Pratibha
United States, Las Cruces
New Mexico State University
Upadhyaya, Hari Deo
India, Patancheru
International Crops Research Institute for the Semi-arid Tropics
Kottapalli, Kameswara Rao
United States, Lubbock
Texas Tech University
Payton, Paxton R.
United States, Lubbock
Texas Tech University
Dwivedi, Sangam Lal
Uganda
National Semi-arid Resources Research Institute
Burow, Mark D.
Uganda
National Semi-arid Resources Research Institute
David, Kalule Okello
Uganda
National Semi-arid Resources Research Institute
Sanogo, Soum
United States, Las Cruces
New Mexico State University
Puppala, Naveen
United States, Las Cruces
New Mexico State University
Statistics
Citations: 9
Authors: 9
Affiliations: 4
Identifiers
Doi:
10.2135/cropsci2010.08.0452
ISSN:
0011183X
e-ISSN:
14350653
Research Areas
Genetics And Genomics
Study Design
Cross Sectional Study