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Barnaly Pande

Former member


Barnaly Pande

Email: bpande@ucdavis.edu
Web page:
http://dendrome.ucdavis.edu/NealeLab/adapt/members.php

 Lab member: 2002-2004.
Position Postdoctoral Scholar
Education 1994 -1997 B.Sc. Genetics, University of Birmingham, United Kingdom.

1997 -1998 M.Sc. Applied Genetics, University of Birmingham, United Kingdom.

1998 -2002 Ph.D. The Genetic Analysis of Traits of Economic Importance in the Principal Cultivated Potato,Solanum tuberosum, ssp. tuberosum. Scottish Crop Research Institute, in affiliation with the University of Dundee, United Kingdom.
Research Topic The genetic analysis of QTL influencing root architecture in lettuce.
Research Summary

Root architecture, although under genetic control is highly plastic. The preferential proliferation oflateral roots in nutrient-rich zones, permits the exploitation of uneven soil-nutrient distributions.Cultivated lettuce, Lactuca sativa, has a highly branched surface root structure in the upper partof the soil profile which enables efficient capture of water and nutrients supplied in agriculturalsystems. In contrast, the wild progenitor of cultivated lettuce, L. serriola has a long rootsystem which permits access to water deep in the soil profile. Potentially, modification of the rootmorphology of cultivated lettuce could allow not only more efficient water and nutrient usage, but alsoreduce nitrate leaching and contamination of groundwater.

Previous research from this department has resulted in the identification of quantitative trait loci (QTL)determining root architecture in the lower segment of the root system and correlation of these loci withthe ability of the plant to extract water from deep in the soil profile (Johnson et al., 2000.Theor Appl Genet 101 (7): 1066-1073). In order to fine-map these QTL, I will be analysing arecombinant inbred line (RIL) population generated from L. serriola x L. sativa cv. Salinas(the main crisphead lettuce grown in California). I will also be analysing wild x domesticate coremapping populations in order to determine the spectrum of QTL that influence root morphology and nutrientacquisition in lettuce. In parallel, a candidate gene approach is also being taken to identify possiblecandidates for these traits.

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