title: Identification of X- and Y-chromosome bearing buffalo (Bubalus bubalis) sperm.
abstract: The aim of this study was to identify the difference in DNA content characterizing the X- and Y-chromosome bearing sperm of buffalo. Sperm from six Murrah buffaloes and six Nili-Ravi buffaloes were collected and stained with Hoechst 33342 followed by flow cytometry analysis of the DNA content. Two symmetrical, separate but overlapping peaks presumed to be X- and Y-chromosome bearing sperm were detected. The difference in fluorescence intensity, which related to the DNA content, between the X- and Y-sperm was 3.59+/-0.11% for Murrah buffalo and 3.55+/-0.14% for Nili-Ravi buffalo, respectively. Significant differences were observed among males within each breed, but there were no differences between the averages of the two breeds. The results indicate that flow cytometric sorting of X- and Y-sperm of buffalo is feasible.
authors.affiliation: Animal Reproduction Institute, Guangxi Key Laboratory of Subtropical Bioresource Conservation and Utilization, Guangxi University, Nanning 530004, China.
authors.forename: Y Q
authors.initials: YQ
authors.lastname: Lu
authors.forename: M
authors.initials: M
authors.lastname: Zhang
authors.forename: B
authors.initials: B
authors.lastname: Meng
authors.forename: S S
authors.initials: SS
authors.lastname: Lu
authors.forename: Y M
authors.initials: YM
authors.lastname: Wei
authors.forename: K H
authors.initials: KH
authors.lastname: Lu
mesh_terms: D000818:Animals; D001562:Benzimidazoles / Q000737:chemistry; D002020:Buffaloes / Q000235:genetics* / Q000502:physiology; D004247:DNA / Q000235:genetics; D005260:Female; D005434:Flow Cytometry / Q000662:veterinary; D005456:Fluorescent Dyes / Q000737:chemistry; D006041:Goats; D008297:Male; D012743:Sex Preselection / Q000379:methods / Q000662:veterinary*; D013094:Spermatozoa / Q000502:physiology / Q000648:ultrastructure*; D014960:X Chromosome; D014998:Y Chromosome
chemical_list: D001562:Benzimidazoles; D005456:Fluorescent Dyes; D004247:DNA; C017807:bisbenzimide ethoxide trihydrochloride