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Joshua K. Craver, Chad T. Miller, Kimberly A. Williams和Nora M. Bello

多样性(Yencho等人,2012)。红薯的膨胀尚未得到广泛的研究,很少发表的研究文章讨论这种疾病在作物上的发展。188金宝慱88金宝搏安卓一篇论文,Intumeszenze fogliari di '番薯甘薯”,”

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D. Michael Jackson,Howard F. Harrison,Robert L. Jarret和Phillip A. Wadl

甘薯的农业氏种变异性和产量组分[番薯甘薯(l)Lam)长白猪误判率。关键词:植物保护,植物保护,植物保护,植物保护

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Giovanni A. Caputo, Phillip A. Wadl, Lambert McCarty, Jeff Adelberg, Katherine M. Jennings和Matthew Cutulle

甜蜜帕托[番薯甘薯(l)在美国是一种重要的经济作物;2017年,其价值超过7.33亿美元(美国农业部,2018年),总面积超过6万公顷,在整个种植

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Nicholas A. George,Kenneth V.Pecota和G. Craig Yencho

选择的甜点(番薯甘薯(L)林毅夫,品种与育种无性系,第281-286页。科学家和农民:21世纪研究的伙伴。项目报告,1999 - 2000。项目报告1999 - 2000。国际马铃薯中心,利马,秘鲁马丁

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明刘,阿君张,萧光辰,荣金,洪明李,李中堂

)。甜蜜帕托[番薯甘薯(l)Lam)is an important human food, animal feed, and industrial raw material, which is grown in more than 100 countries and mainly produced in China ( FAO, 2011 ; Jin, 2012 ). Sweetpotato is a typical “K-favoring” crop ( Tang

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r·l·贾勒特,n·加维尔和a·惠特莫尔

24登记入册的番薯,代表13种剖面蜡类外群物种I. Gracilis.I. PES-Caprae是分析限制片段长度多态性。通过用20个低或中度拷贝数序列探测限制酶消化的基因组DNA的南部斑点来检测多态性。I. Batatas.简历。乔治亚红色基因文库。对资料进行分型和表型分析。三叶番石榴,tabascana,K233收集物与甘薯的亲缘关系最为密切(i .甘薯)。番薯littoralis,这一段中唯一的旧世界物种,是一个姐妹物种即tiliacea。洋甘菊,土甘菊,秘鲁甘菊,青花甘菊,I. Gracilis.显示为二倍体(2n = 2x = 30)。相比之下,即tabascana是四倍体(2n = 4x = 60)。剖面的内部关系蜡类种和四倍体近缘种在栽培物种进化中的作用I. Batatas.进行了讨论。

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孟伟,阿君张,鸿梅李,中海堂和小宜陈

J. Expt. Bot. 59 3675 3689 Islam, M.S. Yoshimoto, M. Yahara, S. Okuno, S. Ishiguro, K. Yamakawa, O. 2002甘薯叶片多酚成分的鉴定和特性分析(英文)番薯甘薯

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Janice R. Bohac,Alfred Jones和Daniel F. Austin

本实验室之前的工作确定了在四倍体(4×)中存在高水平的未还原(2n)花粉。番薯SPP。acc。81.2。这项工作提供了间接证据,即2N花粉参与培养的甘薯培养的6X倍增水平的演变(I. Batatas.)。为了进一步研究2n花粉在甘薯进化中的作用,我们对Acc. 81.2的植物进行了研究。植株为5个甘薯品种,并随机选择100株杂合子甘薯幼苗。4× Acc. 81.2被确定为I. Batatas.。Acc. 81.2中2n大花粉含量高,‘硫’中2n含量低,16%的甘薯幼苗中2n含量低。单胞体、二胞体和三胞体的存在证实了大的2n花粉粒是孢子期未还原的结果。这些新发现是2n花粉参与甘薯6倍性水平进化的直接证据。这是一份分类为I. Batatas.;它也是6×2N花粉的第一个报告I. Batatas.在甘薯的2N花粉中的广泛存在表明,该特性可用于繁殖计划中的营养计划4×渗入程序番薯对栽培6×甘薯的遗传稳定性和育性无不良影响。

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R.L. Jarret, N. Bowen, S. Kresovich, Z. Liu

从甘薯的大小分段基因组DNA文库中分离出简单的序列重复(SSR)[Ipomoea Batatas.(L.)林。]。用五个寡核苷酸探针筛选文库,包括;(GT)11., (在)11.(CT)11.(GC)11., (TAA)8.,检测到≈12,000重组中142个阳性菌落的发生。自动DNA测序显示出简单,化合物,完美和不完美SSR的存在。商业上合成五对同源PCR引物对并用于筛选30种甘薯克隆用于发生SSR多态性的克隆。所有引物对产生预期大小的扩增产物,并检测到所检查基因型中的多态性。讨论了使用SSRS作为甘薯种质表征的遗传标志物的可能性。

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Arthur Villordon, Don La Bonte和Robert Jarret

甘薯中类似copia的逆转录转座子序列的存在[Ipomoea Batatas.(l)Lam)was investigated. PCR-based amplification using primers to highly conserved copia-like reverse transcriptase sequences produced several products corresponding to the expected target size (≈300 bp) that were subsequently isolated and cloned. A random sample of the clones were sequenced and all six reading frames were translated into their corresponding amino acid sequences. Sequence analysis revealed the presence of 22 copia-like reverse transcriptase sequences corresponding to various subfamilies. The presence of several sequence families in the genome is indicative of past or recent transposition activity. Southern blot analysis suggested that these copia-like sequences were present in several hundred copies in the sweetpotato genome. Data also showed retrotransposon insertion polymorphisms between a limited sample of virus-tested and virus-infected sweetpotato clones, indicating putative activity and mobility. This investigation documented the presence of copia-like retrotransposon sequences in the sweetpotato genome. This is an important step in clarifying the possible association between mobile genetic elements and the unusually high incidence of somatic mutations that may result in clonal decline in sweetpotato and other asexually propagated crops. Data presented provides information on the possible use of retrotransposons as genetic markers for sweetpotato crop improvement.