語言:

Aspects of the behavior, population genetics, and phylogeny of Stomatopod crustaceans.

Kirsten Sarah. Lindstrom University of California, Berkeley. 2003

Dissertation Abstracts International 65-02B.

線上取得

傳送到

題名:
Aspects of the behavior, population genetics, and phylogeny of Stomatopod crustaceans.
著者: Kirsten Sarah. Lindstrom
University of California, Berkeley.
主題: Biology, Zoology; Biology, Genetics
所屬期刊: Dissertation Abstracts International 65-02B.
描述: Stomatopods are behaviorally complex marine crustaceans found throughout tropical and subtropical seas. In this study, stomatopods are examined at three levels: parental care behavior, population genetic structure, and mitochondrial genome organization and phylogeny.
Monogamy and biparental care. Pullosquilla litoralis are socially monogamous stomatopods with biparental care of eggs. I documented the amount and type of parental care in P. litoralis . Both sexes cared directly and equally for the eggs. When food was abundant, P. litoralis females produced a second clutch of eggs before the first clutch had hatched (the first documented cases of "double clutching" in a stomatopod). With double clutching, both sexes spent less time hunting for food, and more time caring for eggs. Double clutching is proposed as a mechanism to maximize reproductive output when food is abundant and may serve to maintain monogamy.
Population genetics. Pullosquilla thomassini are burrowing stomatopods with a planktonic stage of at least one month. Genetic connectivity among six populations of P. thomassini across the south and central Pacific was explored using sequences of the cytochrome oxidase I (COI) mitochondria) gene. No genetic divergence was detected within or among Australian and Indonesian populations and very low levels of genetic divergence were detected between these populations and French Polynesia. Two possible explanations for these results are explored: (1) recent dispersal and gene flow, and/or (2) recent colonization and rapid expansion in the Pacific, possibly the result of current flow changes associated with sea level change in the Pleistocene.
Mitochondrial genomes and phylogeny. The first complete stomatopod mitochondria) genome sequences are reported. Phylogenetic analyses of the concatenated protein-coding sequences of the mitochondria) genomes were used to explore relationships within the Stomatopoda, within the Malacostraca, and among crustaceans and insects. The Stomatopoda were supported as a monophyletic group within the Malacostraca, also monophyletic. Therefore, like other malacostracan crustaceans, stomatopods are more closely related to insects than to branchiopod crustaceans. Moderate support is given to the sister taxa relationship between stomatopods and eumalacostracans. Of the three stomatopods superfamilies represented (Squilloidea, Gonodactyloidea, Lysiosquilloidea) the Squilloidea representative was most basal, this conflicts with some previous morphology based phylogenetic analyses.
出版者: Thesis (Ph.D.)--University of California, Berkeley, 2003.
建立日期: 2003
格式: 142 p..
語言: 英文
資源來源: NUTN ALEPH

連結

返回到檢索清單

Aspects of the behavior, population genetics, and phylogeny of Stomatopod crustaceans.

Kirsten Sarah. Lindstrom University of California, Berkeley. 2003

正在檢索遠程資料庫，請稍等