title: Construction and characterization of a bacterial artificial chromosome library of the causal agent of Black Sigatoka fungal leaf spot disease of banana and plantain, Mycosphaerella fijiensis.
abstract: A bacterial artificial chromosome library of the causal agent of the Black Sigatoka leaf spot disease of banana and plantain, Mycosphaerella fijiensis, has been constructed using a non-sphaeroplasting technique and characterized using both homologous and heterologous probes. After first and a second size selection of PFGE-fractionated DNA, a ligation was obtained using a 1:4 molar ratio (insert:vector). One hundred random clones were analyzed, and the mean insert size was estimated to be 90 kb. The range of the insert sizes was between 40 and 160 kb. The highest percentage of inserts belonged to the range between 80 and 100 kb; 32% of the inserts had 2 or 3 internal NotI sites. This library consists of 1920 clones, if the genomic size is at least 35 Mb, then this represents 4.9 x genome equivalents, which was supported by hybridization results with homologous and heterologous probes.
authors.affiliation: Centro de Investigación Científica de Yucatán, Unidad de Biotecnología, Calle 43 No. 130, Col. Chuburná de Hidalgo, Mérida, Yucatán, 97200, México.
authors.forename: Blondy
authors.initials: B
authors.lastname: Canto-Canché
authors.forename: Diana Karina
authors.initials: DK
authors.lastname: Guillén-Maldonado
authors.forename: Leticia
authors.initials: L
authors.lastname: Peraza-Echeverría
authors.forename: Laura
authors.initials: L
authors.lastname: Conde-Ferráez
authors.forename: Andrew
authors.initials: A
authors.lastname: James-Kay
mesh_terms: D001203:Ascomycota / Q000235:genetics*; D022202:Chromosomes, Artificial, Bacterial / Q000235:genetics*; D002999:Clone Cells; D003001:Cloning, Molecular; D015342:DNA Probes; D016521:Electrophoresis, Gel, Pulsed-Field; D028521:Musa / Q000382:microbiology*; D009693:Nucleic Acid Hybridization; D010935:Plant Diseases / Q000382:microbiology*; D010943:Plantago / Q000382:microbiology*