A study of genetic diversity among Brassica napus and Brassica juncea germplasm collections using Simple Sequence Repeat (SSR) molecular markers

نویسندگان

  • J Batley
  • A Vecchies
  • R Mogg
  • J Bond
  • N Cogan
  • C Hopkins
  • N Gororo
  • S Marcroft
  • J Forster
  • G Spangenberg
  • D Edwards
چکیده

Brassica species represent a broad range of crops. This reflects the high degree of genetic diversity and related phenotypic plasticity. An understanding of the genetic basis of Brassica diversity aids both breeding and the discovery of rare alleles and traits. Single Sequence Repeat (SSR) molecular markers are popular tools for assessing genetic diversity due to their high degree of polymorphism and their transferability across related species. We have applied public SSR markers to genotype international germplasm collections of B. napus and B. juncea as well as commercial Brassica lines grown in Australia. Results illustrate the genetic relationship between these lines and also provide a measure of the level of genetic uniformity within lines.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

SSR marker variations in Brassica species provide insight into the origin and evolution of Brassica amphidiploids

BACKGROUND Oilseed Brassica represents an important group of oilseed crops with a long history of evolution and cultivation. To understand the origin and evolution of Brassica amphidiploids, simple sequence repeat (SSR) markers were used to unravel genetic variations in three diploids and three amphidiploid Brassica species of U's triangle along with Eruca sativa as an outlier. RESULTS Of 124...

متن کامل

Persistent C genome chromosome regions identified by SSR analysis in backcross progenies between Brassica juncea and B. napus

Given that feral transgenic canola (Brassica napus) from spilled seeds has been found outside of farmer's fields and that B. juncea is distributed worldwide, it is possible that introgression to B. juncea from B. napus has occurred. To investigate such introgression, we characterized the persistence of B. napus C genome chromosome (C-chromosome) regions in backcross progenies by B. napus C-chro...

متن کامل

Diversity Array Technology Markers: Genetic Diversity Analyses and Linkage Map Construction in Rapeseed (Brassica napus L.)

We developed Diversity Array Technology (DArT) markers for application in genetic studies of Brassica napus and other Brassica species with A or C genomes. Genomic representation from 107 diverse genotypes of B. napus L. var. oleifera (rapeseed, AACC genomes) and B. rapa (AA genome) was used to develop a DArT array comprising 11 520 clones generated using PstI/BanII and PstI/BstN1 complexity re...

متن کامل

Genetic Diversity of pear (Pyrus spp) Germplasm Assessed by Simple Sequence Repeat (SSR) and Morphological Traits

This study was conducted to identify and recognize relations and diversity among accessions of the Iranianpears (Pyrus spp). A total of 34 pear accessions, derived presumably from at least six species, were subjected to simple sequence repeat (SSR) analysis. The Japanese and the Chinese pear samples were; “Housui” and “Yali” cultivars, example of Pyrus pyrifolia and P. bretschneideri, respectiv...

متن کامل

Genic Microsatellite Markers in Brassica rapa: Development, Characterization, Mapping, and Their Utility in Other Cultivated and Wild Brassica Relatives

Genic microsatellite markers, also known as functional markers, are preferred over anonymous markers as they reveal the variation in transcribed genes among individuals. In this study, we developed a total of 707 expressed sequence tag-derived simple sequence repeat markers (EST-SSRs) and used for development of a high-density integrated map using four individual mapping populations of B. rapa....

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2008