印尼廖群岛省猪笼草属植物的多样性

IF 1.6 Q3 PLANT SCIENCES

Sabrao Journal of Breeding and Genetics Pub Date : 2023-06-30 DOI:10.54910/sabrao2023.55.3.27

Fitmawati, Sartika, E. Juliantari

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引用次数: 0

摘要

猪笼草是一种独特的食肉植物，其叶片经过改良，可以作为捕捉昆虫的猪笼草。猪笼草通常在植物基部附近产生较低的陷阱，而较高的陷阱在卷须上形成一个环，使其能够包裹附近的植物。猪笼草是一种食虫植物，可以生长在缺氮的土壤中。在廖内岛省，为在国家公园建立生态旅游而进行的激烈土地转换扰乱了猪笼草的栖息地，尽管猪笼草作为观赏植物具有巨大的潜力。因此，对于原位保护，现有的特有植物群可能有利于旅游景点支持当地的生态旅游努力。基于上述讨论，本研究旨在利用形态学标记对印度尼西亚宾坦岛、卡里蒙岛和灵加岛猪笼草的多样性进行表征，并分析其物种之间的关系。根据收集和鉴定的猪笼草植物，研究发现，猪笼草属由25份材料组成，分属6个不同的物种，即细猪笼草、毛果猪笼草（N.×trichocarpa）、雷氏猪笼草和壶菌猪笼草。聚类分析根据Bintan、Karimun和Lingga材料的形态特征，对两个相似系数为31%-97%的主要聚类进行了分组。然而，聚类构建更多的是基于特征的相似性，而不是基于局部性。对于主成分分析（PCA），19个形态特征可以作为区分猪笼草类群的诊断特征。研究表明，廖内群岛的猪笼草具有不同的表型可塑性，该群岛正经历着旅游活动的土地转换。猪笼草的多样性具有观赏植物发展的遗传潜力，是一种生物财富，需要为研究、旅游活动和子孙后代进行保护。

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DIVERSITY OF PITCHER PLANTS (NEPENTHES SPP.) IN RIAU ARCHIPELAGO PROVINCE, INDONESIA

Nepenthes spp. is a unique carnivorous plant with the modified leaf lamina as a pitcher to trap insects. Nepenthes usually produce lower traps near the base of the plant, and upper pitchers form a loop in the tendril, allowing it to wrap around the nearby plant. Pitcher plants, being insectivorous plants, can grow in nitrogen-deficient soils. In the Riau Archipelago Province, the intense land conversion to establish ecotourism in national parks disturbed the pitcher plant habitat, even though the pitcher plants have great potential as ornamental plants. Therefore, for in situ conservation, the existing endemic flora may benefit tourist attractions to support local ecotourism efforts. Based on the above discussion, the presented study aimed to characterize the pitcher plants’ diversity and analyze the relationship among its species using morphological markers in the islands of Bintan, Karimun, and Lingga, Indonesia. Based on the collection and identified pitcher plants, the study discovered that the genus Nepenthes comprises 25 accessions belonging to six different species, i.e., N. gracilis, N. × trichocarpa, N. reinwardtiana, N. ampullaria, N. rafflesiana, and N. × hookeriana. The cluster analysis grouped two main clusters that have a similarity coefficient of 31%–97% based on morphological characteristics among Bintan, Karimun, and Lingga accessions. However, the cluster constructions were more on the traits’ similarity than locality based. For principal component analysis (PCA), 19 morphological traits can benefit as diagnostic features to distinguish the pitcher groups. The study revealed that pitcher plants have diverse phenotypic plasticity in the Riau Archipelago, which is experiencing land conversion for tourism activities. The pitcher plants diversity has the genetic potential for ornamental plants development and is a biological wealth that requires conservation for research, tourism activities, and future generations.

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来源期刊

Sabrao Journal of Breeding and Genetics 农林科学-奶制品与动物科学

CiteScore

1.90

自引率

50.00%

发文量

期刊介绍： The SABRAO Journal of Breeding and Genetics is an international journal of plant breeding and genetics research and was first published in 1969. It is the official publication of the Society for the Advancement of Breeding Research in Asia and Oceania (SABRAO). Its objectives are to: promote the international exchange of research information on plant breeding and genetics, by describing new research findings, or ideas of a basic or practical nature; and be a medium for the exchange of ideas and news regarding members of the Society. The Journal gives priority to articles that are of direct relevance to plant breeders and with emphasis on the Asian region. Invited for publication are research articles, short communications, methods, reviews, commentaries, and opinion articles. Scientific contributions are refereed and edited to international standards. The journal publishes articles for SABRAO members mainly. The Journal preferred strongly that at least one author should be a current member of the Society. Non-members may also publish in the journal.