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《农业科学与工程前沿(英文)》 2021年 第8卷 第2期
Seedless fruits are desirable in the citrus fresh fruit market. Triploid production via diploid × tetraploid interploidy crosses is thought to be the most efficient and widely-used strategy for the breeding of seedless citrus. Although ‘Orah’ mandarin has desirable organoleptic qualities, seeds in the fruits weaken its market competitiveness. To produce new seedless cultivars that are similar to ‘Orah’ mandarin, we performed three 2x × 4x crosses using ‘Orah’ mandarin as the seed parent to regenerate triploid plantlets. A total of 182 triploid and 36 tetraploid plantlets were obtained. By analyzing their genetic origins using nine novel single nucleotide polymorphism (SNP) markers, all of the triploids and tetraploids derived from these three crosses were proven to be hybrids. Also, we demonstrated that 2n megagametophyte formation in ‘Orah’ mandarin result in tetraploid production in these three interploidy crosses. These tetraploid plantlets were genotyped using eight pericentromeric SNP markers and nine centromere distal SNP markers. Based on the genotypes of the 2n megagametophytes, the parental heterozygosity rates in 16 SNP loci and all 2n megagametophytes were less than 50%, indicating that second division restitution was the mechanism underlying 2n megagametophyte formation at both the population and individual levels. These triploid hybrids enrich the germplasm available for seedless breeding. Moreover, the tetraploid hybrids are valuable as parents for ploidy breeding for the production of seedless citrus fruits.
Qiangming XIA, Wei WANG, Kaidong XIE, Xiaomeng WU, Xiuxin DENG, Jude W. GROSSER, Wenwu GUO
《农业科学与工程前沿(英文)》 页码 302-313 doi: 10.15302/J-FASE-2021385
关键词: Citrus 2n gamete interploidy hybridization pericentromeric SNP marker second division restitution
Ralf T. Voegele
《农业科学与工程前沿(英文)》 2017年 第4卷 第1期 页码 121-122 doi: 10.15302/J-FASE-2017142
Determination of heterozygosity for avirulence/virulence loci through sexual hybridization of
Yuan TIAN,Gangming ZHAN,Xia LU,Jie ZHAO,Lili HUANG,Zhensheng KANG
《农业科学与工程前沿(英文)》 2017年 第4卷 第1期 页码 48-58 doi: 10.15302/J-FASE-2016114
关键词: Puccinia striiformis f. sp. tritici selfing heterozygosity virulence inheritance
Effect of fiber hybridization on energy absorption and synergy in concrete
Ahmadreza RAMEZANI, Mohammad Reza ESFAHANI
《结构与土木工程前沿(英文)》 2019年 第13卷 第6期 页码 1338-1349 doi: 10.1007/s17009-019-0558-2
关键词: hybrid fiber-reinforced concrete synergy toughness steel fibers polypropylene fibers
《医学前沿(英文)》 2023年 第17卷 第3期 页码 493-502 doi: 10.1007/s11684-022-0946-x
关键词: ALK fusion next-generation sequencing fluorescence in situ hybridization immunohistochemistry variant allele frequency intratumoral heterogeneity targeted therapy
Identification of cadmium-induced genes in maize seedlings by suppression subtractive hybridization
Quanlin DAI, Baifei HUANG, Zhongyi YANG, Jiangang YUAN, Junzhi YANG
《环境科学与工程前沿(英文)》 2010年 第4卷 第4期 页码 449-458 doi: 10.1007/s11783-010-0250-x
关键词:
Yu Xin, Qiuyue Gao, Yu Gu, Mengyao Hao, Guangming Fan, Liang Zhang
《化学科学与工程前沿(英文)》 2021年 第15卷 第3期 页码 615-629 doi: 10.1007/s11705-020-1989-7
关键词: cholesterol oxidase metal-enzyme hybridization nanostructures sterol derivatives bioconversion
Nanqi REN, Han KANG, Xiuheng WANG, Nan LI
《环境科学与工程前沿(英文)》 2011年 第5卷 第2期 页码 277-282 doi: 10.1007/s11783-010-0226-x
关键词: fluorescent in situ hybridization (FISH) tetrad forming organisms (TFOs) temperature variation enhanced biological phosphorus removal (EBPR)
小麦- 偃麦草远缘杂交选育多年生小麦述评 Review
崔磊,任永康,Timothy D. Murray,闫文泽,郭庆,牛瑜琦,孙玉,李洪杰
《工程(英文)》 2018年 第4卷 第4期 页码 507-513 doi: 10.1016/j.eng.2018.07.003
偃麦草属植物(Thinopyrum spp.)是小麦(Triticum aestivum L.)的近缘植物,具有多年生生长习性,并且抗多种生物胁迫和非生物胁迫,可以应用于小麦遗传改良。偃麦草的很多优良性状可通过渐渗育种培育小麦品种。偃麦草的多年生习性是一种由多个未知基因控制的复杂的数量性状。偃麦草属植物可以与普通小麦杂交产生双二倍体或部分双二倍体。此外,通过偃麦草直接驯化也可以选育多年生小麦。小麦- 偃麦草杂种后代结合了双亲的优异性状,可以粮饲兼用。小麦- 偃麦草杂种后代能够适应多种农业生态系统。本文总结了利用偃麦草培育多年生小麦的发展情况,以及小麦-偃麦草杂种的遗传特点、选育方法以及应用前景。
Gang GUO, Yayi WANG, Chong WANG, Hong WANG, Mianli PAN, Shaowei CHEN
《环境科学与工程前沿(英文)》 2013年 第7卷 第4期 页码 616-624 doi: 10.1007/s11783-013-0505-4
关键词: Denitrifying phosphorus removal anaerobic reaction time nitrous oxide polyhydroxyalkanoate free nitrous acid fluorescence in-situ hybridization
基于荧光原位杂交技术的UASB颗粒污泥中苯酚降解微生物生态位分化研究 Article
Kengo Kubota, Kei Igarashi, Masayoshi Yamada, Yasuyuki Takemura, Yu-You Li, Hideki Harada
《工程(英文)》 2022年 第9卷 第2期 页码 61-66 doi: 10.1016/j.eng.2021.05.012
利用荧光原位杂交(FISH)和克隆文库构建技术,研究了厌氧污泥床反应器处理含酚废水时所收获的颗粒的微生物群落结构。研究发现,互营杆菌(Syntrophorhabdaceae)和隐杆厌氧菌(Cryptanaerobacter)的克隆是苯酚降解的主要原因。为了准确地对隐杆厌氧菌的克隆进行分类归属,需要利用近全长的16S核糖体RNA(rRNA)基因序列进行进化分析。设计了三种寡核苷酸探针用于检测以下三个分类群:互营杆菌、隐杆厌氧菌和互养菌。对厌氧颗粒薄片的FISH 分析显示细菌和古菌呈随机分布。然而,互营杆菌、隐杆厌氧菌和互养菌分布明确。在颗粒细胞的外层发现了隐杆厌氧菌和互养菌,两者关系密切,而互营杆菌则位于颗粒细胞的深层。细菌之间的代谢联系和对底物的亲和力很可能是造成这种特殊分布的原因。研究人员观察到颗粒污泥中苯酚的降解主要通过以下方式进行:首先,隐杆厌氧菌将苯酚转化为苯甲酸盐,然后被互养菌降解为乙酸盐。苯酚的这种互饲降解发生在颗粒表面附近,此处苯酚浓度较高。在苯酚浓度较低的颗粒深部,互营杆菌将苯酚降解为乙酸盐。结果表明,互营杆菌不太可能产生苯甲酸盐,并将其作为中间产物来喂养邻近的生物,这一点与以往研究所提出的理论相矛盾。
关键词: 隐杆厌氧菌(Cryptanaerobacter) 荧光原位杂交 苯酚厌氧降解 互营杆菌(Syntrophorhabdaceae) 互养菌(Syntrophus) 升流式厌氧污泥床(UASB)颗粒污泥
标题 作者 时间 类型 操作
UNREDUCED MEGAGAMETOPHYTE FORMATION VIA SECOND DIVISION RESTITUTION CONTRIBUTES TO TETRAPLOID PRODUCTION IN INTERPLOIDY
期刊论文
UNREDUCED MEGAGAMETOPHYTE FORMATION VIA SECOND DIVISION RESTITUTION CONTRIBUTES TO TETRAPLOID PRODUCTION IN INTERPLOIDY
Qiangming XIA, Wei WANG, Kaidong XIE, Xiaomeng WU, Xiuxin DENG, Jude W. GROSSER, Wenwu GUO
期刊论文
Comments on “Determination of heterozygosity for avirulence/virulence loci through sexual hybridization
Ralf T. Voegele
期刊论文
Determination of heterozygosity for avirulence/virulence loci through sexual hybridization of
Yuan TIAN,Gangming ZHAN,Xia LU,Jie ZHAO,Lili HUANG,Zhensheng KANG
期刊论文
Effect of fiber hybridization on energy absorption and synergy in concrete
Ahmadreza RAMEZANI, Mohammad Reza ESFAHANI
期刊论文
Potential unreliability of ALK variant allele frequency in the efficacy prediction of targeted therapy in NSCLC
期刊论文
Identification of cadmium-induced genes in maize seedlings by suppression subtractive hybridization
Quanlin DAI, Baifei HUANG, Zhongyi YANG, Jiangang YUAN, Junzhi YANG
期刊论文
Self-assembly of metal-cholesterol oxidase hybrid nanostructures and application in bioconversion of steroids derivatives
Yu Xin, Qiuyue Gao, Yu Gu, Mengyao Hao, Guangming Fan, Liang Zhang
期刊论文
Short-term effect of temperature variation on the competition between PAOs and GAOs during acclimation period of an EBPR system
Nanqi REN, Han KANG, Xiuheng WANG, Nan LI
期刊论文
Short-term effects of excessive anaerobic reaction time on anaerobic metabolism of denitrifying polyphosphate- accumulating organisms linked to phosphorus removal and N
Gang GUO, Yayi WANG, Chong WANG, Hong WANG, Mianli PAN, Shaowei CHEN
期刊论文