Cytotype distribution and ecology of Allium thunbergii (= A. sacculiferum) with a special reference to South Korean populations

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F18%3A73591738" target="_blank" >RIV/61989592:15310/18:73591738 - isvavai.cz</a>

Result on the web

<a href="https://www.e-kjpt.org/journal/view.php?number=4899" target="_blank" >https://www.e-kjpt.org/journal/view.php?number=4899</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.11110/kjpt.2018.48.4.278" target="_blank" >10.11110/kjpt.2018.48.4.278</a>

Result language

angličtina

Original language name

Cytotype distribution and ecology of Allium thunbergii (= A. sacculiferum) with a special reference to South Korean populations

Original language description

Polyploidization plays an important role in generating the current high diversity of plants. Studies of the distributional patterns of diploid and derivative polyploid races have provided important insights into the evolutionary process and cryptic speciation by polyploidization within and between closely related taxa defined on the basis of their morphology. Allium thunbergii and A. sacculiferum, occurring throughout eastern Russia, eastern China, Korea, and Japan, are examples of closely related species with unsolved taxonomic relationships. A total of 97 and 65 individuals from 26 and 13 populations of A. thunbergii (including var. thunbergii, var. deltoids, and var. teretifolium) and A. sacculiferum, respectively, were studied to determine their ploidy. The geographic structure and habitat differentiation of the cytotypes were also analyzed. The main cytotype of A. thunbergii was diploid (92.3% in total; the rest were tetraploids). In contrast, the majority of A. sacculiferum plants were tetraploids (69.2% of the total; the rest were diploids). No populations of the studied taxa harbored both cytotypes. Allium thunbergii was more often found at higher elevations than A. sacculiferum, and it tended to occur more frequently on rocky slopes and below forests in mountainous areas. On the other hand, A. sacculiferum occurred at forest margins and in lowland pastures. The cytotypes differed with respect to the elevation; diploids were found more frequently at higher elevations than tetraploids. The results of this study and additional biosystematics data indicate that the morphological characteristics of A. thunbergii and A. sacculiferum may be influenced by polyploidization and by their adaptation to various habitat conditions and that A. thunbergii and A. sacculiferum do not clearly fulfill the requirements of any species concept. Consequently, we propose that A. sacculiferum be considered as an additional synonym of A. thunbergii. Additionally, Allium thunbergii var. deltoides is unified into A. thunbergii var. thunbergii.

Czech name

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Czech description

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Type

J_ost - Miscellaneous article in a specialist periodical

CEP classification

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OECD FORD branch

10611 - Plant sciences, botany

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Korean Journal of Plant Taxonomy

ISSN

1225-8318

e-ISSN

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Volume of the periodical

48

Issue of the periodical within the volume

4

Country of publishing house

KR - KOREA, REPUBLIC OF

Number of pages

10

Pages from-to

278-288

UT code for WoS article

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EID of the result in the Scopus database

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