Isozymes as molecular markers for diploid and tetraploid individuals ofNajas marina (Najadaceae)

Triest, Ludwig; Viinikka, Yzjö; Agami, Moshe

doi:10.1007/bf00937881

Cited by 4 publications

(1 citation statement)

References 18 publications

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“…한편, 두 종은 분자계통분석에 의해서 서로 식별되지 않았 는데 (Na, 2010), 추후 보다 많은 분류군을 대상으로 한 계통 학적 연구를 통하여 약실의 수에 대한 계통학적 유용성을 검증할 수 있을 것이다 (Les et al, personal communication). 또한 나자스말속 분류군은 종 내에서도 생육환경과 배수 성에 따른 형태변이가 있고, 종간 잡종화가 발행하며, 종 분화에 따른 분포양상이 다르게 나타난다 (Triest et al, 1989;Kadono, 1994;Les et al, 2010). 이와 같은 나자스말속 의 식물분류학적인 문제점들을 해결하기 위해서는 형태 변이와 연관된 생육 특성(예; 수심, 유속, 수질) 분석과 분 포에 따른 염색체수 조사 및 분자계통분류학적 연구결과 가 기대되고 있다 (Na, 2010).…”

Section: 나자스말속의 주요 형질unclassified

Numerical taxonomic study of Najas L. (Hydrocharitaceae) in Korea

Na¹,

Choi

2012

Korean Journal of Plant Taxonomy

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We conducted principal component analyses using the thirty two quantitative characteristics of Najas from South Korea to examine the morphological variation and diagnostic characteristics. As a result of our investigation and the morphometric analyses, each taxon could be identified using the leaf width, shape of the leaf sheath, number of teeth on the leaf margin, number of anther cells, number of areoles in each longitudinal row of seeds, and the ratio of the areole width to the length. Dioecious Najas marina was clearly distinguished from the other monoecious taxa (N. graminea, N. gracillima, N. minor, N. oguraensis, and N. orientalis) by the larger size of the stem, the leaf, the flower and the fruit. The monoecious taxa could be identified using vegetative characteristics except for N. minor and N. oguraensis, which were distinct from each other according to the locule number in the staminate flower.

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Section: 나자스말속의 주요 형질unclassified

Numerical taxonomic study of Najas L. (Hydrocharitaceae) in Korea

Na¹,

Choi

2012

Korean Journal of Plant Taxonomy

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The role of fish in distribution and germination of seeds of the submerged macrophytes Najas marina L. and Ruppia maritima L.

Agami

Waisel

1988

Oecologia

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The effects of three species of fish (tilapia, grass carp and common carp) on the seeds of Najas marina L. and of Ruppia maritima L. were investigated. Practically all the seeds that were injested by the common carp were digested. The two other fish were less affective: they digested seeds with soft seed-coats but excreted a good portion of the hard ones. Germination of the excreted seeds was improved. Seeds have been retained in the digestion tracts of the fish for up to 65 h. It is thus suggested that tilapias and grass-carps play a role in the distribution and the improvement of reproduction of Najas and Ruppia.

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