%0 Journal Article
%T Comparative physical mapping of rice BAC clones linked to resistance genes Glh, Bph-3 and xa-5 in Oryza sativa L. and O. granulata Nees et Arn. ex Watt.<br>Comparative physical mapping of rice BAC clones linked to resistance genes Glh,Bph-3 and xa-5 in Oryza sativa L. and O. granulata Nees et Arn. ex Watt.
%A Zhiyong Xiong
%A Guangxuan Tan
%A Aiqing You
%A Guangyuan He
%A Chaowen She
%A Lijia Li
%A Yunchun Song
%A <br>XIONGZhiyong
%A TANGuangxuan
%A YOUAiqing
%A HEGuangyuan
%A SHEChaowen
%A LILijia
%A SONGYunchun
%J 科学通报(英文版)
%D 2004
%I 
%X Oryza granulata Nees et Arn. ex Watt. is one of the three wild relatives of rice, which are the most valuable for study and utilization in China. In this study, the homol-ogy and physical locations of three rice resistance genes, Glh, Bph-3 and xa-5 are comparatively analyzed between O. sativa and O. granulata by Southern blotting and fluorescence in situ hybridization (FISH). The results of Southern blotting indicate that there exist homologous sequences of the tested RFLP markers in O. granulata. By using three bacterial arti-ficial chromosome (BAC) clones scanned by the tested RFLP as probes, FISH signals are detected on both mitotic and pachytene chromosomes in O. sativa and O. granulata. Dual-color FISH demonstrates that two of the three BAC clones (14E16 and 38J9) are located on the short arm of the same chromosome pair in O. granulata. Additionally, colin-earity is shown for the two clones between O. sativa and O. granulata. Another BAC clone 44B4 is located on the end of the short arm of other chromosome pair in these two species. Although the phylogenetic relationship between O. sativa and O. granulata is the most distinct in Oryza and these two spe-cies have evidently different biological features and ecologi-cal habits, the relative lengths and arm ratios of the detected chromosomes and the relative positions of the tested clone signals on chromosomes in O. granulata are quite similar to those in O. sativa.
%K Oryza sativa
%K Oryza granulata
%K BAC-FISH
%K comparative physical mapping<br>水稻
%K 亚洲栽培稻
%K 疣粒野生稻
%K 克隆
%K BAC-FISH
%K 比较物理制图
%K 有丝分裂
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=DBA16F22A5BFBEE89B7A2E1D9D9065E3&yid=D0E58B75BFD8E51C&vid=2A3781E88AB1776F&iid=B31275AF3241DB2D&sid=E543FC2C7CA75C74&eid=6341CCF6B158C5F9&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=0&reference_num=29