|
職名 |
助教 |
|
|
東 典子 (アズマ ノリコ) Noriko Azuma 助教 |
論文 【 表示 ／ 非表示 】
-
宮城県気仙沼市の西舞根川におけるスジエビ<i>Palaemon paucidens</i>の生活史
加藤木 侑一, 松本 裕幸, 髙橋 潤, 東 典子, 千葉 晋
日本ベントス学会誌 77 ( 0 ) 27 - 37 2022年12月
記述言語：日本語 出版者・発行元：日本ベントス学会
-
Genetic differentiation in Palaemon septemtrionalis between populations of two rivers examined by newly developed short tandem repeat markers 査読あり 国際誌
Noriko Azuma, Masamichi Kuroda, Yuichi Katogi, Susumu Chiba
Crustacean Research 51 123 - 127 2022年11月
担当区分：筆頭著者, 責任著者 記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Carcinological Society of Japan
We developed short tandem repeat markers for Palaemon septemtrionalis and tested their utility for analysing population genetics. Six markers were selected for their genotyping ability and suitability for population genetic analyses, and the genetic differences between two populations from different rivers were evaluated using these markers. The results suggested a low level of genetic differentiation between the two populations.
-
A simple method for identifying two species, Phoca largha and P. vitulina, based on mitochondrial DNA suggests their possible hybridization around Hokkaido, Japan 査読あり
Azuma Noriko, Kobayashi Nozomi, Kikkawa Yoshiaki, Kobayashi Mari
Coastal marine science 2020年09月
記述言語：英語 掲載種別：研究論文（学術雑誌）
-
Geographic patterns in colonial reproductive strategy in Myrmecina nipponica : Links between biogeography and a key polymorphism in ants 査読あり
Adam L. Cronin, Noriko Azuma, Satoshi Miyazaki, Emiko Oguri, Michael P. Schwarz, Fuminori Ito
Journal of Evolutionary Biology 2020年07月
記述言語：英語 掲載種別：研究論文（学術雑誌）
-
Adam L. Cronin, Noriko Azuma, Satoshi Miyazaki, Emiko Oguri, Michael P. Schwarz, Fuminori Ito
Journal of Evolutionary Biology 33 ( 9 ) 1192 - 1202 2020年07月
出版者・発行元：Oxford University Press (OUP)
<jats:title>Abstract</jats:title><jats:p>The ability to express different phenotypes can help define species distributions by allowing access to, and exploitation of, new environments. Social insects employ two markedly different reproductive strategies with contrasting cost/benefit characteristics: independent colony foundation (ICF), which is associated with high dispersal range and high risk, and dependent colony foundation (DCF), characterized by low risk but low dispersal. The ant <jats:italic>Myrmecina nipponica</jats:italic> employs both of these strategies, with the frequency of each apparently varying between populations. We combine molecular data with data on reproductive strategy from different populations of this species throughout Japan to explore how this polymorphism is linked to environmental factors and whether this relationship can help explain the current and historical biogeography of this species. Reproductive strategy exhibited a strong geographic pattern, with ICF predominant in southern populations and DCF more common in northern and southern highland populations. Molecular analyses clearly divided populations into broad geographic regions, with the southern lowland populations basal to (southern highland (+ northern)) populations. Intra‐population polymorphism in colony‐founding strategy was widespread, and polymorphism was reconstructed as the likely ancestral state. The frequency of different strategies was linked with climate, with DCF more common in colder areas. A recent inferred origin to the northern lineage suggests that colonization of northern Japan was a rapid event coincident with warming at the end of the Last Glacial Maxima, likely facilitated by the cold‐adaptive advantages of DCF. We discuss how such polymorphisms could help explain the biogeography of this and other social insects.</jats:p>
DOI： 10.1111/jeb.13659