A sequence-specific PCR marker linked with Pm21 distinguishes chromosomes 6AS, 6BS, 6DS of Triticum aestivum and 6VS of Haynaldia villosa

To develop markers linked with Pm21 located on chromosome 6VS of Haynaldia villosa, a pair of primers (NAU/xibao15F and NAU/xibao15R) were designed according to the sequence of a serine/threonine kinase gene (Contig17515), whose expression was induced by Blumeria graminis and selected from the gene expression experiment using the Barley GeneChip. Using genomic DNA of various genetic stocks including the wheat variety ‘Yangmai#5’, H. villosa, Triticum durum–H. villosa amphiploid, seven T. aestivum–H. villosa addition lines involving chromosomes 1V–7V, the translocation line T6VS·6AL, and 21 nullisomic–tetrasomic and eight deletion lines of T. aestivum‘Chinese Spring’ as templates, four amplicons specific for 6VS, 6AS, 6BS and 6DS, respectively, were produced. F₂ individuals derived from the cross of ‘Yangmai#5’ × T6VS·6AL were analysed, and data indicate that NAU/xibao15₉₀₂ could be used as a co‐dominant marker for selecting Pm21 located on 6VS.     

国审玉米濮单6号栽培技术

濮单6号系濮阳农业科学研究所选育的半紧凑型玉米单交种,2003年通过国家审定(审定编号:国审玉2003048)。2004年被列为国家玉米50个主推品种之一。     

Comparative analysis of genetic effects of wheat‐Dasypyrum villosum translocations T6V#2S·6AL and T6V#4S·6DL

Wheat‐Dasypyrum villosum translocations T6V#2S·6AL and T6V#4S·6DL, carriers of Pm21 and PmV, respectively, confer high resistance to wheat powdery mildew. For better understanding of the difference in genetic effect between them, a RIL population was constructed based on the cross between “Yangmai 18” carrying T6V#2S·6AL and “Yangmai 22” carrying T6V#4S·6DL. Analysis of distribution of the translocations showed that T6V#2S·6AL is much more transmittable than T6V#4S·6DL. By comparing their effects on main agronomic traits, we firstly found that T6V#2S·6AL contributes greatly to top spikelet fecundity, but causes a decrease of 6.7%–10.5% of spike number. No stable effects of T6V#4S·6DL on agronomic traits were found, except for positive effect on plant height. Excitingly, a new recombinant, T6V#4S‐6V#2S·6AL carrying PmV, was screened and proved to have a higher transmission rate than the original translocation T6V#4S·6DL, which will greatly promote the utilization of PmV. The above conclusions of this research will provide important guidance for utilization of Pm21 and PmV more effectively, in wheat powdery mildew resistance breeding.     

松粳6号水稻栽培技术要点

该品种由黑龙江省农科院选育而成，我市1998年引进试验，2000年进行大面积示范并开始推广应用，2002年2月通过省级审定推广，现已成为我市第一积温区主栽品种，2003年推广面积超过0．67万hm^2。     

泛玉6号简化栽培技术

泛玉6号是河南黄泛区地神种业农科所以自选系改478为母本、DSO1为父本选育的紧凑型高产中早熟玉米杂交种.2004-2006年参加河南三年三级试验.于2007年通过河南省审定,审定编号:豫审玉200713107;2007年、2008年参加陕西省两年三级试验,于2009年通过陕西省审定,审定编号:陕审玉2009007.该品种在各地试验、大田种植和示范中表现高产、稳产性好;果穗均匀,秃尖小;多抗,活秆成熟;夏播生育期95～100天,每亩适宜种植种植密度4 000～4 500株,适合河南各地和陕西夏玉米区种植.     

承豆6号高产栽培技术

承豆6号是由河北省承德农业研究所选育,2000年通过河北省审定（审定编号：冀承审200006）,2003年相继通过宁夏回族自治区（审定编号：宁审豆2003003）和国家审定（审定编号：国审豆2003014）。     

新葵6号

新葵6号是新疆农垦科学院新选育的油葵杂交新品种,具有杂交优势强,籽实产量高,产油量高,抗病性好,适应性广等优良特性.1997年通过新疆维吾尔自治区农作物品种审定委员会审定命名.1998年开始生产杂交种,1 999年开始在生产上大面积推广种植,预计2000年可推广种植1.33 万hm2.     

同源域-亮氨酸拉链蛋白ATHB6的研究进展?

同源域—亮氨酸拉链蛋白（HD-Zip）是高等植物中特有的一类转录因子，包含高度保守的同源异型域（HD），HD羧基末端与亮氨酸拉链域（LZ）紧密相连。同源域—亮氨酸拉链蛋白ATHB6是蛋白磷酸酶ABI1的靶蛋白，与发育中器官的细胞分裂和分化有关，是特异的ABA反应的负调控因子。ATHB6的表达受缺水、高渗、外源ABA及光的特异性调控。本文综述了ATHB6的相关结构、功能的新进展     

小麦-黑麦6RS/6AL易位染色体的遗传稳定性及其在配子中的传递

小麦-黑麦6RS/6AL易位系HM812-41携带抗白粉病基因Pm56。为评价其育种利用潜力,以HM812-41为亲本分别与推广品种蜀麦580、蜀麦830和蜀麦969杂交,杂种F1与中国春进行正反交,研究6RS/6AL易位染色体在不同背景中的遗传稳定性及其通过雌雄配子的传递规律。同时,利用"双顶交"法改良易位系的综合农艺性状。基因组原位杂交结果表明, 6RS/6AL易位染色体在传递过程中结构稳定。6RS/6AL易位染色体可以高频率地通过雌、雄配子传递,其传递率分别为45.05%～53.33%和43.94%～53.04%。初步分析"双顶交"F2分离群体表明, 6RS/6AL易位染色体对主要农艺性状如株高、穗长、小穗数和自交结实率没有明显的不利影响。用"双顶交"法可以快速地改良易位系的综合农艺性状。     

Effects of the 6VS.6AL translocation on agronomic traits and dough properties of wheat

Nineteen common wheat cultivars and advanced lines carrying a 6VS.6AL translocation and five parents were sown at two locations in Jiangsu in 2004–05 season to assess the effects of the translocation on grain yield and dough properties. In general, there were no significant differences between 6VS.6AL lines and their recurrent parents in agronomic, mixograph and starch pasting traits, including grain yield, grains/spike, grain weight/spike, mixing time and peak viscosity. 6VS.6AL lines showed slightly but significantly higher thousand-kernel weight and plant height, and small negative effects on test weight, flour yield and flour colour. However, significant variation occurred for all traits among sister lines from the same cross, indicating that additional selection could lead to further improvement. It was concluded that the 6VS.6AL translocation can be used in wheat breeding programs as a donor of resistance to powdery mildew with no obvious undesirable effects on agronomic and quality traits.     

晋葵6号杂交制种技术

油葵属于菊科向日葵属.油葵晋葵6号熟期早,产量高,出油率高,适宜于我省运城市、临汾市和泽州、阳城、黎城等县以及周边地区的武安、涉县麦收后复播.     

濮单6号玉米高产栽培技术

该品种属早熟品种。在西南玉米区出苗至成熟110d,比对照农大108早1d。在西北地区春播生育期为128d,比对照农大108早熟4d。在东华北春玉米区生育期130d,比对照农大108早熟1d。在黄淮海夏玉米区生育期96d,比对照掖单13早熟4d。     

玉米品种江单6的选育

为适应当前玉米生产全程机械化的需求,黑龙江省农业科学院利用自育优良骨干自交系HRM2961为母本,HRKF1075为父本组配优异玉米杂交种江单6,该品种茎秆强壮,株高适中。品质分析结及病害接种鉴定结果均显示出优良特性。2014～2015年省区试及2016年生产试验结果显示均照对照增产。2017年通过黑龙江省农作物品种审定委员会审定（审定编号：黑审玉2017018）。现将该品种的亲本来源、选育过程和品种的特征特性进行详细阐述,期望对黑龙江省早熟区玉米的选育和该品种的推广应用有所帮助。     

小麦果聚糖合成酶基因6-SFT-D多态性及其与6-SFT-A2的累加效应

小麦6-SFT是果聚糖合成的关键酶基因。以23份六倍体普通小麦(AABBDD)、5份D基因组材料(DD)为多样性代表群体材料,通过测序分析小麦6-SFT-D基因的序列多态性,根据多态性开发6-SFT-D基因的功能标记,分析由154份六倍体普通小麦构成的自然群体的6-SFT-D基因单倍型(haplotype)与表型性状的关联特性和基因累加效应。在28份多样性代表群体中,共检测到6-SFT-D基因的4个多态性位点,均为单核苷酸多态性(SNP)位点,构成3种6-SFT-D基因单倍型;而在自然群体中只检测到6-SFT-D的两种单倍型。根据6-SFT-D基因2850 bp位点的T/C变异开发等位变异特异PCR标记。关联分析表明,6-SFT-D单倍型分别与灌溉条件下的千粒重和穗长显著关联,单倍型Hap I是提高千粒重的优异等位变异;在雨养和灌溉条件下,同时具有6-SFT-D与6-SFT-A2优异等位变异小麦材料的千粒重显著高于其他基因型材料,说明6-SFT-D和6-SFT-A2优异等位变异对于提高千粒重表现累加效应。     

招育6号特征特性和栽培技术

招育6号系山东省招远市种子公司、种苗研究所、山东省种子管理总公司用自交系"招938×296"组配的玉米单交种.2001、2002年参加山东省玉米新品种区域试验,平均比对照鲁单50号增产11.0%,2003年参加山东省玉米新品种生产筛选试验,平均亩产606.4kg,比对照农大108增产11.4%,增产明显.2004年3月通过山东省农作物品种审定委员会审定.     

Parsing the Addressing Architecture of IPv6

IPv6 is the best protocol to replace IPv4, solve the jam of Internet facing nowadays, provide better service and development for next Internet because there is a huge address space, hiberarchy of addressing architecture, high-speed route, better security, better support for mobility and QoS. The document discourses at great length on the addressing architecture of IPv6, the addressing types of IPv6 and their connections with interface, the addressing model of IPv6 and the representation of detailed format and brief format for the IPv6's addressing, addressing prefixes and addressing types. And this specification discusses the addressing format, the addressing range and their uses of unicast, anycast and multicast. The paper has guide effect on constructing network of IPv6.     

扬两优6号高产制种技术

扬两优6号是江苏省扬州农科院用广占63-4S作母本与籼稻扬稻6号作父本杂交配组而成,2005年通过国家审定(审定编号:国审稻2005024)。该品种不但F1表现高产,而且制种产量也较高,一般制种亩产180 kg左右,高产田块可达240 kg以上。     

中双6号油菜高产栽培技术

中双6号是中国农业科学院油料作物所以双低核不育系9328A作母本,用中油119、中油220、9548、9558、中油821等9个品种(系)作父本组配基础群体,通过群体改良,轮回选择三代后进行单株定向选择选育而成。2000年8月通过湖北省审定,从2000年起连续3年作为湖北省主推品种之一,并作为湖北省优质油菜区试对照品种;2003年9月通过国家审定。1特征特性1.1特征特性中双6号属半冬性、冬春双发、中早熟甘蓝型油菜,苗期叶色深绿,侧裂叶2或3对,株高170cm左右,分枝部位25cm左右。农业部油料及其制品质量监督检测中心分析,中双6号籽粒含油量42.29%,芥酸含量为0…     

油葵杂交种新葵6号的选育

新葵 6号 (原名 935) ,由新疆农垦科学院作物所选育 ,经 5年品种比较试验 ,区域试验和生产试验 ,表现高产、优质、抗逆性强 ,综合性状好。 1997年通过自治区农作物品种审定委员会审定。1　选育经过1.1　不育系选育　 1987年从印度向日葵分离株中选株自交 ,经南繁北育连续多代自交选择 ,育成性状基本稳定的 10个 874 30姐妹系。 1989年以 10 9Ａ作母本 ,用 874 30的 10个姐妹系与其配组测交 ,从中筛选出 10 9Ａ× 874 30 - 312的组合杂种优势强 ,子实产量和含油率高 ,并测得 874 30 - 312属完全保持型自交系。经过连续多代回交转育 ,育成了性…