نتایج جستجو برای: breeding lines

تعداد نتایج: 271940  

Marker assisted selection (MAS) is a tool for breeding, screening, and genetic characterization of germplasm. Allelic variation of both high and low molecular weight glutenin subunits (HMW/LMW-GS) is associated with the rheological properties of wheat flour. In this study, we investigated glutenin pattern using SDS-PAGE and their PCR based on DNA markers in 60 advanced wheat lines and cultivars...

A. Ahmadikhah, O. Alishah S. Nasrollanejad

An important step in plant breeding programs is identification of parents that are geneticallydistant from each other, to find crossing combinations with better prospects of hybrid vigor. Thepotential of identifying genetically distant parents depends on genetic diversity of population. 58 linesof rice from diverse origins have been employed to study genetic variation in order to identify themo...

Journal: :Journal of nematology 2014
Drew W Schrimsher Kathy S Lawrence Roelof B Sikkens David B Weaver

Rotylenchulus reniformis resistant LONREN-1×FM966 breeding lines developed at Auburn University have demonstrated that the nematode resistance is accompanied by severe stunting, limited growth, and low yields. The objectives of this study were to evaluate the effects of applying nematicides to selected LONREN breeding lines on R. reniformis nematode populations, plant stunting, and yield. Four ...

Journal: :Genetics 2003
Kejun Liu Major Goodman Spencer Muse J Stephen Smith Ed Buckler John Doebley

Two hundred and sixty maize inbred lines, representative of the genetic diversity among essentially all public lines of importance to temperate breeding and many important tropical and subtropical lines, were assayed for polymorphism at 94 microsatellite loci. The 2039 alleles identified served as raw data for estimating genetic structure and diversity. A model-based clustering analysis placed ...

Genetic improvement of crop plants such as wheat, relies on genetic diversity.  In the current investigation, the genetic diversity of 99 wheat lines and 49 cultivars were assessed using 20 SSR primers. Out of the primers used, 19 were polymorphic among studied lines and cultivars and a total of 67 alleles were amplified. The number of alleles per locus ranged from 1 (Xgwm44) to 7 (Xgwm47), wit...

Journal: :پژوهش های حبوبات ایران 0
مجتبی لطفی آغمیونی محمد جعفرآقایی شاهین واعظی اسلام مجیدی هروان

to study breeding resource of kabuli chickpea lines of national plant gene bank of iran, two separate experiments were conducted during 2010 and 2011. in this study, 57 lines of kabuli type chickpeas- selected from primary evaluation experiments, out of 1500 accessions were planted at farm of seed and plant improvement research institute in karaj, iran, according a randomized complete block des...

Journal: :Journal of nematology 2002
R T Robbins E R Shipe L Rakes L E Jackson E E Gbur D G Dombek

Reproduction of reniform nematode Rotylenchulus reniformis on 139 soybean lines was evaluated in a greenhouse in the summer of 2001. Cultivars and lines (119 total) were new in the Arkansas and Mississippi Soybean Testing Programs, and an additional 20 were submitted by C. Overstreet, Louisiana State Extension Nematologist. A second test of 32 breeding lines and 2 cultivars from the Clemson Uni...

Journal: :Plant physiology 2017
Roisin C McGarry Amy L Klocko Mingxiong Pang Steven H Strauss Brian G Ayre

For many crops, the benefits of traditional breeding practices are difficult to achieve because the crops have long juvenile periods that necessitate long breeding cycles, desired genotypes for a cross do not have synchronized flowering because of photoperiod or vernalization requirements, or preferred lines are propagated asexually and have limited flowering potential. In light of these limita...

2007
Hernan Ceballos J. C. Pérez C. Iglesias M. Fregene F. Calle G. Jaramillo N. Morante J. López

Cassava breeding is difficult and, compared with other crops, inefficient. The problems in cassava breeding relate to the length of the breeding cycle, the large genetic load present in the crop, and the heterozygous nature of the parents and progenies evaluated. The production of doubled haploids, through tissue culture techniques, offers interesting advantages. By definition, any process that...

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