3 Works

Data from: Impact of cryptic female choice on insemination success: larger sized and longer copulating male squid ejaculate more, but females influence insemination success by removing spermatangia

Noriyosi Sato, Masaaki Yoshida, Takashi Kasugai & Masa-Aki Yoshida
In polyandrous mating systems, sperm competition and cryptic female choice (CFC) are well recognized as postcopulatory evolutionary forces. However, it remains challenging to separate CFC from sperm competition and to estimate how much CFC influences insemination success because those processes usually occur inside the female's body. The Japanese pygmy squid, Idiosepius paradoxus, is an ideal species in which to separate CFC from sperm competition because sperm transfer by the male and sperm displacement by the...

Data from: Nuclear internal transcribed spacer-1 as a sensitive genetic marker for environmental DNA studies in common carp Cyprinus carpio

Toshifumi Minamoto, Kimiko Uchii, Teruhiko Takahara, Takumi Kitayoshi, Tsuji Satsuki, Hiroki Yamanaka, Hideyuki Doi & Satsuki Tsuji
The recently developed environmental DNA (eDNA) analysis has been used to estimate the distribution of aquatic vertebrates by using mitochondrial DNA (mtDNA) as a genetic marker. However, mtDNA markers have certain drawbacks such as variable copy number and maternal inheritance. In this study, we investigated the potential of using nuclear DNA (ncDNA) as a more reliable genetic marker for eDNA analysis by using common carp (Cyprinus carpio). We measured the copy numbers of cytochrome b...

Data from: Cenozoic dynamics of shallow-marine biodiversity in the Western Pacific

Moriaki Yasuhara, Hokuto Iwatani, Gene Hunt, Hisayo Okahashi, Tomoki Kase, Hiroki Hayashi, Toshiaki Irizuki, Yolanda M. Aguilar, Allan Gil S. Fernando & Willem Renema
Aim: Cenozoic dynamics of large-scale species diversity patterns remain poorly understood, especially for the Western Pacific, in part, because of the paucity of well-dated fossil records from the tropics. This article aims to reveal the spatiotemporal dynamics of species diversity in the Western Pacific through the Cenozoic, focusing on the tropical Indo-Australian Archipelago (IAA) biodiversity hotspot. Location: Tropical and north-western Pacific Ocean. Methods: We analysed well-preserved fossil ostracodes from the tropical Western Pacific and combined...

Registration Year

  • 2016
    3

Resource Types

  • Dataset
    3

Affiliations

  • Shimane University
    3
  • National Museum
    1
  • Ryukoku University
    1
  • University of Hyogo
    1
  • Aberystwyth University
    1
  • Osaka Ohtani University
    1
  • Smithsonian Institution
    1
  • National Institute of Genetics
    1
  • University of Hong Kong
    1
  • Hiroshima University
    1