Dev Suma Arun, Sijimol K, Prathibha P S, Sreekumar V B, Muralidharan E M
1Forest Genetics and Biotechnology Division, Kerala Forest Research Institute, Peechi, Thrissur, Kerala India.
2Forest Ecology and Biodiversity Conservation Division, Kerala Forest Research Institute, Peechi, Thrissur, Kerala India.
3 Biotech. 2020 Feb;10(2):59. doi: 10.1007/s13205-019-2018-8. Epub 2020 Jan 22.
DNA barcodes developed for selected commercially important bamboo species can be utilized for the certification of planting stock in bamboo nurseries in absence of discriminatory features at the juvenile stage. Planting materials such as micropropagated plantlets, rhizome transplants and culm cuttings, generated at nursery level are directly procured for establishment of commercial plantations without any further verification Very often misidentification and mixing up occur at nursery level and the error is not discovered until several years have passed. The present study evaluated the potentiality of seven Consortium for Barcode of Life (CBOL) recommended standard DNA barcode regions in commercially important bamboo species of India. Among the analyzed barcode regions, multiple sequence alignment (MSA) of barcode region showed species-specific nucleotide differences in the studied bamboo taxa The major nucleotide changes observed were transitions/transversions as well as insertions/deletions of nucleotides. Even though species-specific mononucleotide differences could be identified for most of the studied bamboo taxa, a small amount of sequence similarities were found in some of the and species which were grouped together in tree-based analysis. In subtribe Melocanninae, and showed unique species-specific barcodes. Similarly, in the genus , unique species-specific barcodes were obtained for and Thus barcode region generated distinct species-specific barcodes for commercial bamboo species in genera as well a. Any national certification agency set up for the purpose can utilize DNA barcode region to tag species identity and to establish the authenticity of multiplied planting materials in bamboos.
为选定的具有重要商业价值的竹种开发的DNA条形码,可用于在幼龄期缺乏鉴别特征的竹苗圃中对苗木进行认证。苗圃培育的微繁殖苗、根茎移植苗和竹秆插穗等种植材料,在没有任何进一步验证的情况下,直接采购用于建立商业种植园。在苗圃阶段经常会出现误认和混淆的情况,而且直到几年后才会发现错误。本研究评估了生命条形码联盟(CBOL)推荐的七个标准DNA条形码区域在印度具有重要商业价值的竹种中的潜力。在分析的条形码区域中,条形码区域的多序列比对(MSA)在研究的竹类群中显示出物种特异性的核苷酸差异。观察到的主要核苷酸变化是转换/颠换以及核苷酸的插入/缺失。尽管可以为大多数研究的竹类群鉴定出物种特异性的单核苷酸差异,但在基于树的分析中归为一组的一些物种中发现了少量的序列相似性。在Melocanninae亚族中,和显示出独特的物种特异性条形码。同样,在属中,为和获得了独特的物种特异性条形码。因此,条形码区域为属以及属中的商业竹种生成了不同的物种特异性条形码。任何为此目的设立的国家认证机构都可以利用DNA条形码区域来标记物种身份,并确定竹子中繁殖种植材料的真实性。