CAJ | 학술논문

利用花药基部开裂长度存在明显差异的粳稻品系TD70和籼稻品种Kasalath的重组自交系(包含240个系)为作图群体,对控制水稻花药基部开裂长度的QTL进行鉴定,并对水稻花药基部开裂长度和其他农艺性状进行相关性分析。利用IciMappingv3.4软件,运用复合区间作图法,以均匀分布于12条染色体的141个SSR标记进行花药基部开裂长度的QTL检测,共检测到2个QTL位点,其中qLDBT6位于第6染色体RM3和RM3628之间, LOD值3.23,贡献率6.18%,加性效应17.74%；qLDBT8位于第8染色体RM1376和RM4085之间,LOD值2.95,贡献率8.00%,加性效应20.09%,推测该区域与小穗不育有重要关系,有必要进一步研究。 RIL群体的花药基部开裂长度与剑叶宽、千粒质量、粒长、粒宽、粒厚间存在极显著正相关,与抽穗期、株高、分蘖数、剑叶长、总粒数、结实率、抽穗当天最高温度、抽穗期平均温度、抽穗期间最高温度以及芒长之间不相关。
이용화약기부개렬장도존재명현차이적갱도품계TD70화선도품충Kasalath적중조자교계(포함240개계)위작도군체,대공제수도화약기부개렬장도적QTL진행감정,병대수도화약기부개렬장도화기타농예성상진행상관성분석。이용IciMappingv3.4연건,운용복합구간작도법,이균균분포우12조염색체적141개SSR표기진행화약기부개렬장도적QTL검측,공검측도2개QTL위점,기중qLDBT6위우제6염색체RM3화RM3628지간, LOD치3.23,공헌솔6.18%,가성효응17.74%；qLDBT8위우제8염색체RM1376화RM4085지간,LOD치2.95,공헌솔8.00%,가성효응20.09%,추측해구역여소수불육유중요관계,유필요진일보연구。 RIL군체적화약기부개렬장도여검협관、천립질량、립장、립관、립후간존재겁현저정상관,여추수기、주고、분얼수、검협장、총립수、결실솔、추수당천최고온도、추수기평균온도、추수기간최고온도이급망장지간불상관。
Two hundred and forty recombinant inbred lines ( RIL ) derived from a cross between japonica rice TD70/Kasalath and its linkage map including 141 SSR markers were used to map QTLs controlling length of basal dehiscence of thecae(LDBT). Two QTLs controlling LDBT were detected on chromosomes 6 and 8, respectively. qLDBT6 was mapped between the marker RM3 and RM3628 on chromosome 6 with the LOD value of 3. 23. qLDBT8 was mapped between the mark-er RM1376-RM4085 on chromosome 8 with the LOD value of 2. 95. The LDBT of RILs had significant positive correlations with width of flag leaf, grain weight, grain width,grain length and grain thickness. No significant cor-relation was found between LDBT and plant height,heading date,number of tillers,length of flag leaf,average tempera-ture at heading, and maximum temperature at heading, etc.