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搜索结果: 1-15 共查到Tetraploid相关记录26条 . 查询时间(0.128 秒)
20 论文简介:利用无纤维突变体,通过图位克隆了纤维起始基因Li3,该基因是位于染色体D12(GhMML3_D12)上的R2R3-MYB转录因子。借助序列分析和遗传分析,发现li3是一个功能缺失的等位基因,和N3是一对具有加性效应的同源突变体,对纤维(绒或棉)的起始具有加性作用。这些发现为影响棉花纤维起始的遗传因素提供了新的信息。
本研究发现MYB5_A12在陆地棉(SG747)纤维起始及伸长早期的表达水平显著低于海岛棉(GZ75);通过QTL共定位分析发现,海岛棉GbMYB5_A12的等位基因型与纤维长度(FL)、纤维强度(FS)和衣分(LP)等性状显著正相关,其启动子区的顺式作用元件TFmatrixID_0063 (GATGTTGT)的自然变异可能导致海陆等位基因差异表达;通过酵母单杂及双荧光素酶报告基因实验验证了RAV...
Somatic chromosome doubling usually results in the production of mixoploids, which are difficult to use in breeding programs. In this study, we developed a method to isolate diploid and tetraploid cyt...
The aim of this work was to suggest a reliable method for distinguishing between diploid and tetraploid taxa of the genus Betula Linnaeus, based on leaf measurements. In total, 97 individuals from 6 ...
Trollius chinensis Bunge is one of the important ornamental and medicinal plants cultivated in China. In this study, the tetraploid plants of Trollius chinensis were successfully induced by colchici...
Doubled haploidy breeding protocols have revolutionized the varietal development programmes in bread wheat, however, the protocols have not proved much efficient in durum wheat. Presently, the durum w...
A study was carried out to evaluate the development of 12 tetraploid alfalfa cultivars exposed to Al toxicity in nutrient solution. Newly germinated seedlings of cultivars Alfa 200, Alto, Araucana, Co...
The genetic diversity of 140 accessions of triticum turgidum ssp. carthlicum Nevski em. A. Löve & D. Löve and 159 accessions of t. turgidum ssp. polonicum L. em. Thell. was evaluated by th...
Relationship between weight of seeds and ploidy level of the seed-derived plantlets obtained from reciprocal crosses between diploid ‘Banpeiyu’ pummelo and two tetraploid varieties were examined to ef...
This experiment was conducted to artificially induce loquat tetraploids by applying amiprofos-methyl (APM) and colchicine for chromosome doubling agents to diploid loquat shoot apex. Germinated shoot...
In vitro chromosome doubling of nucellar embryos was investigated in Meiwa kumquat (Fortunella crassifolia Swingle). Nucellar embryos were aseptically treated with two antimitotic agents, colchicine a...
To obtain the seedless sudachi of a triploid, 297 flowers were crossed between tetraploid sudachi and diploid sudachi, and 50 triploids were established in 1992. Flowcytometer was used for selection o...
In vitro chromosome doubling of Chinese lantern (Physalis alkekengi L. var. franchetii Makino) was studied and characteristics of the obtained tetraploids were clarified. The tetraploids could be obta...
Seven potted dormant tetraploid grapevine cultivars grown under forced conditions were treated immediately after pruning with the supernatants of a 20% suspension of CaCN2, 2% H2CN2 and 5% diallyl dis...
We carried out colchicine treatment of lateral buds and their grafting in some monoembryonic citrus cultivars to induce tetraploid plants. Among the grafted plants, 19 eutetraploid plants were obtaine...

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