FBIP: scallop population genetics

Occurrence
Последняя версия опубликовано South African National Biodiversity Institute сен 26, 2019 South African National Biodiversity Institute
Дата публикации:
26 сентября 2019 г.
Лицензия:
CC-BY 4.0

Скачайте последнюю версию данных этого ресурса в формате Darwin Core Archive (DwC-A) или метаданных ресурса в форматах EML или RTF:

Данные в формате DwC-A Скачать 37 Записи в English (6 KB) - Частота обновления: unknown
Метаданные в формате EML Скачать в English (12 KB)
Метаданные в формате RTF Скачать в English (11 KB)

Описание

The study focused on genomic resource development for Pecten sulcicostatus followed by the quantification of genetic diversity within a single natural population, namely the False Bay Pecten sulcicostatus population. The data set represents a list of tissue samples and DNA extracts taken from live specimens and their haplotype for the 16S gene. The 16S rRNA sequences generated in this project have been submitted to GenBank to allow other researchers to access this information.

Записи данных

Данные этого occurrence ресурса были опубликованы в виде Darwin Core Archive (DwC-A), который является стандартным форматом для обмена данными о биоразнообразии в виде набора из одной или нескольких таблиц. Основная таблица данных содержит 37 записей.

Данный экземпляр IPT архивирует данные и таким образом служит хранилищем данных. Данные и метаданные ресурсов доступны для скачивания в разделе Загрузки. В таблице версий перечислены другие версии ресурса, которые были доступны публично, что позволяет отслеживать изменения, внесенные в ресурс с течением времени.

Версии

В таблице ниже указаны только опубликованные версии ресурса, которые доступны для свободного скачивания.

Как оформить ссылку

Исследователи должны дать ссылку на эту работу следующим образом:

Roodt-Wilding R (2019): FBIP: scallop population genetics. v1.0. South African National Biodiversity Institute. Dataset/Occurrence. http://ipt.sanbi.org.za/iptsanbi/resource?r=fbip_scallop_population_genetics&v=1.0

Права

Исследователи должны соблюдать следующие права:

Публикующей организацией и владельцем прав на данную работу является South African National Biodiversity Institute. Эта работа находится под лицензией Creative Commons Attribution (CC-BY 4.0).

Регистрация в GBIF

Этот ресурс был зарегистрирован в GBIF, ему был присвоен следующий UUID: b5899cfd-0acd-4179-8ca2-bb6fb1873941.  South African National Biodiversity Institute отвечает за публикацию этого ресурса, и зарегистрирован в GBIF как издатель данных при оподдержке South African Biodiversity Information Facility.

Ключевые слова

Occurrence; Specimen

Контакты

Rouvay Roodt-Wilding
  • Metadata Provider
  • Originator
  • Point Of Contact
Associate Professor
Stellenbosch University
Department of Genetics, Private Bag X1, Matieland 
7602 Stellenbosch
Western Cape
0218085831
Mahlatse Kgatla
  • Content Provider
FBIP Data Specialist
SANBI
2 Cussonia Avenue, Brummeria
0184 Pretoria
Gauteng
ZA
0128435196

Географический охват

South Africa, Western Cape, False Bay

Ограничивающие координаты Юг Запад [-34,191, 18,641], Север Восток [-34,191, 18,641]

Таксономический охват

All scallops identified to species

Species Pecten sulcicostatus

Временной охват

Дата начала 2014-10-31

Данные проекта

The study focused on genomic resource development for Pecten sulcicostatus followed by the quantification of genetic diversity within a single natural population, namely the False Bay Pecten sulcicostatus population. The data set represents a list of tissue samples and DNA extracts taken from live specimens and their haplotype for the 16S gene. The 16S rRNA sequences generated in this project have been submitted to GenBank to allow other researchers to access this information.

Название Scallop population genetics
Идентификатор IBSG13052118234
Финансирование Foundational Biodiversity Information Programme
Описание района исследования South Africa, Western Cape, False Bay
Описание плана выполнения исследований 16S rRNA mitochondrial sequences were generated for Pecten sulcicostatus specimens collected at False Bay by scuba. Samples were collected from live specimens in their natural habitat using non-lethal methods.

Исполнители проекта:

Rouvay Roodt-Wilding
  • Principal Investigator

Методы сбора

-Study populations and specimen collection. -Establishment of genomic resources and molecular marker development. -Population genetic analyses.

Охват исследования False Bay, 20-40m depth

Описание этапа методики:

  1. Study populations and specimen collection (6 months: January 2014 - June 2014): This study will focus on the broad geographic distribution of Pecten sulcicostatus within its natural distribution range, taking into account the three marine bio-geographical provinces of South Africa and major barriers to gene flow. Specimens will be collected from False bay, representing the western geographical distribution extreme (west of the Agulhas upwelling; a major bio-geographical barrier to many marine species around the South African coast); Mossel bay (south coast sampling location, between the Agulhas upwelling and thermal front at Algoa bay); Algoa bay, representing a secondary bio-geographical barrier (thermal front) and East London, representing the eastern geographical distribution extreme (east of the thermal front at Algoa bay). Fifty specimens will be collected from each of the four sampling locations, 200 specimens in total. Establishment of genomic resources and molecular marker development (5 months: February 2014 - June 2014): The FIASCO/454 microsatellite-marker isolation technique that has been shown to be a high-throughput, time- and cost-effective protocol for marker development in uncharacterized species will be employed: Firstly, a genomic library enriched for microsatellite repeat motifs will be generated via the FIASCO protocol. This will be followed by next generation, pyrosequencing (454 – GS FLX system) to determine the nucleotide composition and sequence of the genomic fragments. Raw sequence data will be subject to quality control and individual reads will be assembled into contigs to eliminate sequence redundancy. Using appropriate algorithms, contigs and singleton reads will be screened for repetitive microsatellite motifs. Primers will be designed and optimized for PCR amplification of each microsatellite locus. Polymorphism will be tested by means of polyacrylamide gel electrophoresis. Finally, primers for polymorphic loci will be labelled with fluorescent dyes for genotyping using capillary electrophoresis and optimized into multiplex reactions for diagnostic standardization. Population genetic analyses (6 months: July 2014 - December 2014): Each individual within the study cohort will be genotyped for each of the developed microsatellite markers. The genotype data will be employed to evaluate panmixia, population differentiation and the compartmentalization of intra- and interspecific genetic diversity. In order to evaluate intraspecific genetic diversity the following estimates will be calculated for each population: heterozygosity, number of alleles, effective number of alleles and information (Shannon-Weaver) index. In order to assess interspecific population diversity, pairwise Fst and analogous statistics will be estimated, as well as the following analyses: analysis of molecular variance (AMOVA) and principle coordinate analysis (PCoA). To further evaluate the genetic relationship amongst populations, population-trees (using genetic distance estimates and phylogenetic clustering algorithms) will be constructed and a Bayesian clustering algorithm will be implemented to evaluate the number of distinct genetic populations. Contemporary population size and evidence for population expansions or contractions will also be investigated to obtain a understanding of how demographic factors may influence genetic diversity.

Дополнительные метаданные

Альтернативные идентификаторы http://ipt.sanbi.org.za/iptsanbi/resource?r=fbip_scallop_population_genetics