Source: UNIVERSITY OF FLORIDA submitted to NRP
GENOMICS FOR PHASEOLUS AS A COMMUNITY RESOURCE FOR LEGUME RESEARCHERS
Sponsoring Institution
National Institute of Food and Agriculture
Project Status
(N/A)
Funding Source
Reporting Frequency
Annual
Accession No.
0209713
Grant No.
2006-35300-17266
Cumulative Award Amt.
(N/A)
Proposal No.
2006-03556
Multistate No.
(N/A)
Project Start Date
Aug 15, 2006
Project End Date
Aug 14, 2009
Grant Year
(N/A)
Program Code
[52.1]- (N/A)
Recipient Organization
UNIVERSITY OF FLORIDA
G022 MCCARTY HALL
GAINESVILLE,FL 32611
Performing Department
HORTICULTURAL SCIENCE
Non Technical Summary
Phaseolus vulgaris, the common bean, is a diploid species with a simple and small genome. This projects aims to construct a physical map of Phaseolus vulgaris. This map will facilitate the characterization of complex genomes of related legumes like soybean.
Animal Health Component
(N/A)
Research Effort Categories
Basic
100%
Applied
(N/A)
Developmental
(N/A)
Classification

Knowledge Area (KA)Subject of Investigation (SOI)Field of Science (FOS)Percent
2011410108050%
2011411108050%
Goals / Objectives
1) accelerate genetics of this important food crop, 2) develop cross-genome genetic markers than can be used to map important traits, 3) make evolutionary comparisons with other legume species, especially to infer genome duplication events, and 4) to help assemble the emerging soybean genome sequence.
Project Methods
1) Assemble a Phaseolus BAC library consisting of 55,296 clones, or 12x physical coverage, into contigs using high information content fingerprinting (HICF); 2) Obtain BAC-end sequences (BES) from each BAC clone that is fingerprinted; 3)Integrate the genetic and physical maps of Phaseolus; and 4)Merge these physical resources with those of soybean, Medicago and Lotus and make them public via the Legume Information System (LIS).

Progress 08/15/06 to 08/14/09

Outputs
OUTPUTS: A BAC library of the common bean containing an average of 12 genome equivalents was screened with mixtures of previously mapped random genomic clones (BNGs). BAC clones identified int he first screen were then isolated and used to produce dot-blots. These dot blots were hybridized individually with the radiolabeled mapped clones. Complementary to screening by hybridization, sequences of the previously mapped clones were used to search highly similar sequences derived from BAC-end sequences from the same BAC library. PARTICIPANTS: A post-doctoral fellow from Brazil, Dr. Francisco da Silva, was trained in C. Eduardo Vallejos' (PI) lab. The training consisted of handling a BAC library, isolation of BAC DNA, preparation of dot blots, and DNA hybridization with radiolabeled DNA probes. Ms Valerie Jones, a technician in the Vallejos's lab also made significant contributions to the project. TARGET AUDIENCES: The extent of synteny detected among legumes makes the legume research community the Target Audience for this project. The information generated by this project will likely benefit the community in regards to genome sequencing, gene mapping and breeding efforts as well. PROJECT MODIFICATIONS: Nothing significant to report during this reporting period.

Impacts
Matching a BNG clone to a set of BAC clones automatically aligned the contig with which the BAC clones was associated with the linkage map of the common bean. Alignment of the physical and linkage maps will facilitate the completion of the physical map and future efforts to sequence the genome of the common bean, Phaseolus vulgaris.

Publications

  • No publications reported this period