Genetic Diversity Analysis of Traditional Rice Variety ̳Pachchaperumal‘ Using SSR Markers

ثبت نشده
چکیده

Assessing the genetic diversity for miniaturization of crop collections to form mini core collection will lead to greater utilization of germplasm to develop improved crop cultivars along with effective maintenance of it. It has become vital to perform this for traditional Rice (Oryza sativa L.) varieties when considering the arising demand for their qualities. This study was conducted to assess the genetic diversity of twenty ̳Pachchaperumal‘ traditional Rice accessions with two control varieties Bg360 and ̳Suwandal‘ Rice, conserved at the Seed Genebank of Plant Genetic Resources Center, Gannoruwa, Sri Lanka. Morphological analysis was done using seven standard seed morphological descriptors of Rice and, Molecular analysis was done using 16 SSR primers. Statistical analysis was done for morphological and molecular data using MINITAB 15 and POPGENE 1.31 softwares respectively. Strategy of bulking accessions was tested in this study relying on seed morphological clustering and those bulks were used in the molecular analysis. Results revealed a significant degree of genetic diversity among tested accessions both morphologically and molecularly, and molecular results were more contributive. Two distinct accessions were identified as potential off types of ̳Pachchaperumal‘, accession numbers 3752 and 5547. Cluster analysis based on morphological traits generated seven major clusters at 1.62 relative distance. Depending on the pattern of clustering, ten bulks were formed. The molecular analysis based on bulks, generated five clusters in a relative genetic distance of 9.0. Eleven accessions were distinguished as representative set out of all 20 accessions and according to passport data 3 of them were Bg accessions, 5550, 5549 and 5546.

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

Genetic diversity analysis of recombinant inbred lines of rice (Oryza sativa L.) using microsatellite markers

Estimation of genetic diversity is an important factor in germplasm conservation and characterization. In rice breeding programs, genetic diversity information on specific regions of genome can be very useful for the application of marker assisted selection (MAS) and for gene mapping. A total of 152 rice lines were considered for breeding programs using microsatellites (SSR) technique. The tota...

متن کامل

Estimation of genetic diversity in rice (Oryza sativa L.) genotypes using SSR markers under salinity stress . Fatemeh Gholizadeh1* and Saeed Navabpour2

In order to study the genetic diversity in rice (Oryza sativa L.), 29 genotypes consisting land races, pure and improved lines were evaluated using simple sequence repeat (SSR) markers. A total of 30 SSR primers were used to amplify some part of rice genome in germplasms, the PIC values ranged from 0.07 (RM 340) to 0.71 (RM 7426) with an average of 0.45. The results showed a total number of 106...

متن کامل

Genetic and Molecular Dissection of Blast Resistance in Rice Using RFLP, Simple Sequence Repeats and Defense-Related Candidate Gene Markers

Blast, Pyricularia grisea (Cooke) Sacc., is one of the most destructive diseases of rice worldwide and canresult in significant reductions in yield. The use of resistant cultivars is the most economical and effectiveway of controlling rice blast. A variety of DNA markers, including plant defense-related candidategene markers are available for genetic characterization and molec...

متن کامل

Evaluation of Traits and Genetic Diversity of Sugar Beet O-Type Lines for Rhizomania Tolerance using SSR Molecular Marker

Extended Abstract Introduction and Objective: Sugar beet is one of the most important agricultural products in the world and most of the sugar consumed in our country is prepared from this plant. Plant breeding programs are based on creating variety and selection of quantitative and qualitative traits. Examining genetic diversity is the first step in breeding programs. Material and Methods: I...

متن کامل

Genetic analysis of traditional and evolved Basmati and non-Basmati rice varieties by using fluorescence-based ISSR-PCR and SSR markers.

The objective of the present study was to make use of efficient molecular marker systems to reveal genetic relationships in traditional and evolved Basmati (EB) and semidwarf non-Basmati (NB) rice varieties. A subset of three rice groups was analyzed by using 19 simple sequence repeat (SSR) loci and 12 inter-SSR-PCR primers. A total of 70 SSR alleles and 481 inter-SSR-PCR markers were revealed ...

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 2017