ADVANCES IN RICE BREEDING FOR THE FUNCTIONAL COMPONENTS

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1 ,18 (5) : Acta Agriculturae Nucleatae Sinica : (2004) ,2 3 (1., ; 2., ) :, 2, : ; ; ADVANCES IN RICE BREEDING FOR THE FUNCTIONAL COMPONENTS HU Fan2rong 1 DUAN Zhi2ying 1 ZHANGLin2lin 1 HU Pei2song 2 WU Dian2xing 1,2 (1. Institute of Nuclear Agricultural Sciences, Zhejiang University, Hangzhou, Zhejiang, ; 2. National Key Lab of Rice Biology, China National Rice research Institute, Hangzhou, Zhejiang, ) Abstract :In the current paper, the major functional components in grain of rice were briefly introduced and research progresses in rice breeding for high Iron, Zinc content, amino acids, LCG, and novel endosperms were briefly reviewed. The need and strategies for rice breeding with the functional components in China were discussed. Key words :rice ; functional components ; breeding,, :,, [1 ],,, 2 ( GABA) V E [3 ] [4 ],,, ,,,,, : : 2002BA406B C406 ; :,,, 3 :E2mail edu. cn

2 5 365,,, 1992,, 1994,,,, 25mgΠkg 60 % IR164 Goto [5 ],, 3,,, 3 6 [6 ], GCN4 026, ,,, [7 ],,,,,,,,, [8 ], Raboy [9,10 ] (Low Phytic acid, LP) Veum [11 ],,,Larson [12 ] Kaybonnet LP 1 pa % 40 %,,,, 9311 B , 70 % 10 % 30 %, , 2 ( Golden rice) Chair [13 ], GGPP, 4 Ye [14 ] (phytoene synthase, psy ) Erwinia uredovora (phytoene desaturase, crt ) Narcissus pseudonarcissus 2 (lcy ), 2,, A ,,, LGC21 [6 ],,, , N2 2N [16 ] 2 3, 215 % 4 %,,GABA GABA,, 2 Masumura [17 ] 85KG24 13kDa,

3 , g, 1. 5,, [18 ] Ogawa [19 ],, 90, 10 Krishnan Hari B [20 ], 2 21 (PB ) 22 ( PB ) PB, 30 %,PB PB,, PB, [21 ] 1. 6,,,, AGPP GBSS SBE DBE, RNA, 1 AGPP GBSS SBE DBE, [22 ] Okita (1996) AGPP, Shimada (1993) GBSS Wx kb Nipponbare, RNA [23 ] Wx RNA,, 2 %, 20 3 (AC) AC, 8, du21 du5 du2035 (2120) du ( EM47), AC,, [24,25 ] AC, AC (amylose extender, ae), 3 ae21 ae22 (t) ae23 (t) ae AC,,, B, [26 ] AAC (Am(t) ) (lam(t) ) %,,, (2002),, lsv21,,,, Yano Matsuo [28 ], 3, 3, Matsuo [29 ] Maekawa [30 ] 1 (flo21 fol22 fol23 (t) ),,,,

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