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ɽ1¡¡Frequency of mutants with resistance to bacterial leaf blight induced through treatment with mutagenic agents¡Ê¸¶ÏÀʸ1¤è¤ê°úÍÑ¡Ë
------------------------------------------------------------------------------------------
Exp. mutagena Original No.of No.of M1seed No.of No.of Frequ- Year Genera-
No. variety M1 M1 fertility M2 mutants encyd of tion
plants panicles plants treat- with
(% of cont) ment selection
------------------------------------------------------------------------------------------
NB Harebare 169 1180 43.8 8909 5 5.6x10-4 1980 M4
N " 186 1302¡¡ 52.5 8866 7 7.9x10-4 ¡¡"¡¡¡¡ "
µ ¦Ã " 169 1183 49.6 8886 1 1.1x10-4 " "
¡¡¡¡¡¡ EI " 159 1101 57.4 8393 1 1.2x10-4 " "
EMS " 191 1463 54.7 8605 0 0 " "
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¶ NB Shizutama 433 2253 57.0 12000c 4 3.3x10-4 1983 M5
N " 365 1812 42.9 12000c 3 2.5x10-4 " "
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· NB M41b 1039 8552 49.4 72000c 2 2.8x10-5 1985 M3
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a NB ¡§Thermal neutron treatment applied to boron-enriched seed,
N ¡§Thermal neutron treatment applied to normal seed,¦Ã¡§¦Ã-rays
EI ¡§Ethylene-imine,EMS¡§Etyl-methane-sulfonate
b BLB resistant mutant line induced by thermal neutrons
c No.of seeds sown
d No.of mutants/No.of M2 seedlings
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¤³¤ì¤é¤ÎÆÍÁ³ÊѰ۷ÏÅý¤ÎÃæ¤«¤é¡ÖM41¡×·ÏÅý¤Ë¤Ä¤¤¤Æ¤µ¤é¤ËʬÀϤò¿Ê¤á¤¿¤¬¡¢¸¶Éʼï¤È¤Î¸òÇۼ¸³¤«¤é¤³¤ÎÄñ¹³À°äÅÁ»Ò¤Ïñ°ø»ÒÎôÀ¤Ç¤¢¤ë¤³¤È¤¬¼¨¤µ¤ì¤¿¡£¤Þ¤¿È½ÊÌÍѶݷϤˤè¤ëØíÉÂÀ¤Î¸¡Æ¤¤Ç¤ÏÁ´¤Æ¤Î¶Ý·Ï¤ËÂФ·¤ÆÄñ¹³À¤ò¼¨¤·¡¢¤Þ¤¿¤½¤ì¤é¤ÏÄñ¹³À¡§´¶¼õÀ=1¡§3¤ÎʬΥ¤ò¼¨¤·¡¢¤³¤ÎÁ´¶Ý·Ï¤ËÄñ¹³À¤ò¼¨¤¹ÆÃ°Û¤ÊÆÍÁ³ÊѰÛÂΤϰì¤Ä¤ÎÎôÀ°äÅÁ»Ò¤Ë¤è¤ë¤â¤Î¤È¿ä¬¤·¤Æ¤¤¤ë¡£É½2¤Ë¤³¤ì¤Þ¤Ç¤ËÃΤé¤ì¤Æ¤¤¤ë°ð¤ÎÇòÍոϤìÉÂÄñ¹³À¤Î°äÅÁ»Ò¤ò¼¨¤¹¡£
ɽ2¡¡List of genes identified for resistance to BLB¡Ê¸¶ÏÀʸ1¤è¤ê°úÍÑ¡Ë
-----------------------------------------------------
Gene Original Representative varieties
designation
-----------------------------------------------------
Xa-1 Kogyoku
Xa-1 Xa-1 IR22,IR29,IR30
Xa-2 Xa-2 Rentai Emas II,Te-tep
Xa-3 Xa-w Wase Aikoku 3
Xa-4 Semora Mangga
Xa-6 Zenith
Xa-9 Sateng
Xa-4 Xa-4 TKM6,IR20,IR22,
Xa-4
xa-5 DZ192,IR1545-339,
Xa-7 DV85
xa-8 PI231129
Xa-10 Cas 209
Xa-11 Xa-pt RP9-3
Xa-12 Xa-kg Kogyoku,Java 14
Xa-12 Xa-kg IR28,IR29,IR30
xa-13 BJ1
-----------------------------------------------------
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¸¶ÏÀʸ£± Data source 1¡§
Induced Mutations for Resistance to Bacterial Leaf Blight in Rice
Nirokazu NAKAI
Faculty of Agriculture, Shizuoka University
Gamma Field Symposia No.27, 1988, pp49-69
¥¡¼¥ï¡¼¥É¡§¥¤¥Í¡¢ÂÑÉÂÀ¡¢ÆÍÁ³ÊѰۡ¢ÃæÀ»ÒÀþ¡¢¥¬¥ó¥ÞÀþ¡¢²½³ØÊѰ۸¶¡¢ÎôÀ°äÅÁ»Ò¡¢°é¼ï
rice, desease resistance, mutation, neutrons, gamma-ray, chemical mutagen, recessive gene, breeding
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