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| 1 | Mapping Heterotic Loci for Yield and Agronomic Traits Using Chromosome Segment Introgression Lines in Cotton显示文摘在现在的学习,一套染色体片断基因渗入排队(CSIL ) 使用 Gossypium hirsutum L。TM-1 作为接受者父母和 G。施主父母被用来为种间的混血儿探索杂种优势的基因基础的 barbadense Hai7124。个别地从与两个父母一起交叉的 CSIL 导出的 F1 人口的二个集合被设置调查 heterotic loci (HL ) 和替换效果 loci (SL ) 。58 HL 和 39 SL 的一个总数在 3 年里被识别。一稳定的 HL, hLP-A4-3,能在所有 3 年里被检测。三 HL, hBS-A8-1, hLP-D6-1,和 hSI-D7-11,能在 2 年里被检测。四 SL, sBS-D7-1, sLP-A8-1, sLP-D7-1,和 sLP-D12-1,能在 2 年里被检测。HL 和 SL 趋于在有靠近的位置的一些 HL 富有的染色体片断分布式。与在以前的研究检测的 QTL 相比, HL 与 QTL 显示出很少重叠,显示特点显型和杂种优势可能被 loci 的不同集合控制。基因效果的所有三种形式(部分 -- ,完整 -- ,在主导上) 被识别,当在主导上的效果做了主要贡献到杂种优势时。这些结果可以帮助为在棉花澄清杂种优势的遗传机制打了基础。 | Xian Guo Yuping Guo Jun Ma Fang Wang Mizhen Sun Lijuan Gui Jiajia Zhou Xianliang Song Xuezhen Sun Tianzhen Zhang | 2013 | Journal of Integrative Plant Biology2013，55，8： | 13 |
| 2 | Fine Mapping of qPAA8,a Gene Controlling Panicle Apical Development in Rice显示文摘In rice,one detrimental factor influencing single panicle yield is the frequent occurrence of panicle apical abortion(PAA) under unfavorable climatic conditions.Until now,no detailed genetic information has been available to avoid PAA in rice breeding.Here,we show that the occurrence of PAA is associated with the accumulation of excess hydrogen peroxide.Quantitative trait loci(QTLs) mapping for PAA in an F2 population derived from the cross of L-05261(PAA line) × IRAT129(non-PAA variety) identified seven QTLs over a logarithm of the odd(LOD) threshold of 2.5,explaining approximately 50.1% of phenotypic variance for PAA in total.Five of the QTLs with an increased effect from L-05261,were designated as qPAA3-1,qPAA3-2,qPAA4,qPAA5 and qPAA8,and accounted for 6.8%,5.9%,4.2%,13.0% and 12.2% of phenotypic variance,respectively.We found that the PAA in the early heading plants was mainly controlled by qPAA8.Subsequently,using the sub-populations specific for qPAA8 based on markerassisted selection,we further narrowed qPAA8 to a 37.6-kb interval delimited by markers RM22475 and 8-In112.These results are beneficial for PAA gene clone. | Zhi-Jun Cheng Bi-Gang Mao Su-Wei Gao Ling Zhang Jiu-Lin Wang Cai-Lin Lei Xin Zhang Fu-Qing Wu Xiu-Ping Guo Jianmin Wan | 2011 | Journal of Integrative Plant Biology2011，53，9： | 10 |
| 3 | In-vitro Androgenesis in Rice: Advantages, Constraints and Future Prospects显示文摘In vitro androgenesis is an important component of plant biotechnology when the pollen grains are forced to switch from their normal pollen developmental pathway towards an embryogenic route. Haploid and doubled haploid produced through androgenesis have long been recognized as a valuable tool in plant breeding as it can shorten the breeding cycle, fix agronomic characters in homozygous state and enhance the selection efficiency of useful recessive agronomic traits. Recently, doubled haploids have been largely recognized as an important component of crop improvement through genome mapping, quantitative trait locus analysis, and genetic mutation, and as targets for genetic transformation programs. Thus, this review is focused mainly on various facets of doubled haploid in the chief staple food crop rice and sights its recent applications in plant breeding, genetics and genomics. | Rukmini MISHRA Gundimeda Jwala Narashima RAO | 2016 | Rice science2016，23，2： | 5 |
| 4 | 水稻耐淹性的QTL定位与候选基因分析显示文摘为研究水稻苗期对淹水胁迫的耐受性,以籼稻品种台中本地1号(TN1)和粳稻品种春江06(CJ06)为亲本构建的DH群体为实验材料,将淹水条件下的成苗率作为考察指标,利用该群体前期构建的分子连锁图谱对淹水数据进行数量性状基因座(quantitative trait loci,QTL)检测分析.利用实时荧光定量PCR(quantitative real-time PCR,qRT-PCR)技术对淹水处理前后相关基因的表达量进行分析,并对表达量存在显著差异的基因进行测序分析.结果表明:挖掘到6个与淹水胁迫相关的QTL,分别位于水稻第1,2,6,8和9号染色体上;位于8号染色体QTL区间内的基因LOC_Os08g42750的表达在两亲本间存在显著差异,该基因在两亲本的编码区域存在4处差异.检测到的QTL位点对QTL精细定位和克隆耐淹相关基因具有重要参考价值,并为研究水稻耐淹分子机制及水稻直播育种提供了新的观点和见解. | 饶玉春 林晗 肖飒清 吴仪 张月 王盛 胡佳青 薛大伟 | 2020 | 浙江师范大学学报(自然科学版)2020，43，3： | 5 |
| 5 | Fine Mapping and Analysis of DWARF TILLER1 in Controlling Rice Architecture显示文摘Rice is one of the most consumed staple food plants around the world,and its plant architecture is very important to improve the grain yield(Zhang et al.,2008).Plant height,leaf angle,tiller number and angle,and uniformity of panicle layer all can have strong effects on grain yield(Wang and Li,2008).During the long history of domestication,rice has been selected to develop uniform tiller height architecture that ensures panicle layer uniformity and ease of harvesting(Ma et al.,2009),and is largely determined by the | Wenfei Wang Huangwei Chu Dabing Zhang Wanqi Liang | 2013 | Journal of Genetics and Genomics2013，40，9： | 3 |
| 6 | Heterotic loci identified for plant height and ear height using two CSSLs test populations in maize显示文摘Heterosis is an important biological phenomenon, and it has been used to increase grain yield, quality and resistance to abiotic and biotic stresses in many crops. However, the genetic mechanism of heterosis remains unclear up to now. In this study, a set of 184 chromosome segment substitution lines(CSSLs) population, which derived from two inbred lines lx9801(the recurrent parent) and Chang 72(the donor parent), were used as basal material to construct two test populations with the inbred lines Zheng 58 and Xun 9058. The two test populations were evaluated in two locations over two years, and the heterotic loci for plant height and ear height were identified by comparing the performance of each test hybrid with the corresponding CK at P<0.05 significant level using one-way ANOVA analysis and Duncan's multiple comparisons. There were 24 and 29 different heterotic loci(HL) identified for plant height and ear height in the two populations at two locations over two years. Three HL(hlPH4a, hlPH7c, hlPH1b) for plant height and three(hlEH1d, hlEH6b, hlEH1b) for ear height were identified in the CSSLs×Zheng 58 and CSSLs×Xun 9058 populations as contributing highly to heterosis performance of plant height and ear height across four environments. Among the 29 HL identified for ear height, 12 HL(41.4%) shared the same chromosomal region associated with the HL(50.0%) identified for plant height in the same test population and environment. | WANG Hong-qiu ZHANG Xiang-ge YANG Hui-li CHEN Yong-qiang YUAN Liang LI Wei-hua LIU Zong-hua TANG Ji-hua KANG Ding-ming | 2016 | Journal of Integrative Agriculture2016，15，12： | 1 |
| 7 | 利用CRISPR-Cas9基因编辑技术获得水稻OsWOX9C基因突变体显示文摘WUSCHEL-Related HOMEOBOX(WOX)基因家族是植物所特有的一类转录因子基因家族,该家族成员在植物发育的不同过程中发挥了重要的调节功能。相比于双子叶模式植物拟南芥,对于单子叶模式植物水稻中WOX基因家族成员功能的了解还很不充分。水稻DWT1/OsWOX9隶属于WOX基因家族的中间支,该基因在水稻主穗和分蘖穗的协同生长中起到了重要的调节作用。OsWOX9B和OsWOX9C是水稻中与DWT1/OsWOX9最为同源的基因,并具有相似的表达模式,但是否具有相似的生物学功能尚不清除。为了研究水稻WOX基因家族成员OsWOX9C的功能,我们利用CRISPR-Cas9基因编辑体系,设计了水稻WOX家族基因OsWOX9C(LOC_Os05g48990)的敲除靶点,构建了OsWOX9C基因的敲除载体。通过对OsWOX9C基因序列分析,将合成的靶点序列插入p BIN-sg R-Cas9-Os载体中,构建p BIN-sg R-Cas9-Os-Target载体,通过农杆菌介导的方法转化水稻品种9522。从5株T0代转基因苗中鉴定出1株OsWOX9C突变的杂合突变体,并通过对自交分离群体的测序分析,筛选出OsWOX9C的四种突变类型。这四种突变体的突变位点均在外显子第146位碱基处,包括插入碱基A或T的两种纯合突变类型,以及插入A/T或C/T的两种双等位突变类型。通过蛋白序列分析,发现这四种突变株系均导致移码而使氨基酸提前终止致使基因突变。本研究利用CRISPR-Cas9基因编辑技术获得了水稻OsWOX9C基因的敲除突变体,为进一步研究OsWOX9C基因的功能提供了重要的遗传材料。 | 叶世伟 方芳 梁婉琪 | 2018 | 分子植物育种2018，16，15： | 1 |
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