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http://krishi.icar.gov.in/jspui/handle/123456789/4345
Title: | Assessment of cytomorphological and molecular diversity in prebred lines: |
Project Code: | 101-2 |
Published/ Complete Date: | 2012-01-01 |
Division or Unit: | Crop Improvement |
PI Name: | M.Sujatha |
Project Investigator Designation: | Principal Scientist |
Project Investigator Email: | Not Available |
CoPI Name: | S.Chander Rao |
Co-Project Investigator Designation: | Principal scientist |
Co-Project Investigator Email: | Not Available |
Co-Center PI/Any Collaborator: | Not Available |
Co-Center PI/Any Collaborator Designation: | Not Available |
Co-Center PI/Any Collaborator Email: | Not Available |
Current Location of Data : | IIOR, Hyderabad |
Current Person's Email: | Not Available |
Since when: | 2012-01-01 |
Abstract/Description: | A set of 250 distinct, stable and uniform backcross derived inbred lines were developed in sunflower through five interspecific cross combinations involving four diploid annual species (H. argophyllus, H. petiolaris, H. annuus wild, H. debilis). The presence of the wild species genome in these inbred lines was confirmed through higher chromosome associations (tri- and quadrivalents) at diakinesis. Maximum structural rearrangements of chromosomes were observed in lines derived from H. petiolaris. Based on morphological diversity, 40 diverse inbred lines along with 2 checks were subjected to measurements of phenotypic and genetic distance using 118 simple sequence repeat (SSR) markers of known map location. A total of 204 alleles were identified and the number of alleles per locus varied between 2 and 5. There were 29 unique alleles and the number of unique alleles was maximum in the lines derived from the cross involving H. petiolaris. The polymorphism information content (PIC) values ranged from 0.05 to 0.57. The pair-wise comparison values based on genetic dissimilarity estimates computed using molecular marker data varied between 0.143 and 0.486 among the 42 lines. The results indicate that the sunflower gene pool could benefit from introgression of novel alleles from the latent genetic diversity present in the wild species and particularly through exploitation of the diploid annual, H. petiolaris in introgressive breeding. |
Funding Type: | Internal |
Funding Source: | Not Available |
Subject: | Plant Breeding |
Keywords: | Sunflower Wild species Prebred line |
List of Attributes: | Not Available |
Available Data Format: | WordFile |
Data Scale: | Not Available |
Language: | English |
Extent Time To: | 2012-01-01 |
Extent Time From: | 2012-01-01 |
Availability (Extent): | Not Available |
Data Location: | Division |
Source: | Not Available |
Relation: | Not Available |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/4345 |
Appears in Collections: | CS-IIOR-Data Inventory |
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