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Full-Text Articles in Plant Sciences

Allelic Diversity At Abiotic Stress Responsive Genes In Relationship To Ecological Drought Indices For Cultivated Tepary Bean, Phaseolus Acutifolius A. Gray, And Its Wild Relatives, María A. Buitrago-Bitar, Andrés J. Cortés, Felipe López-Hernández, Jorge M. Londoño-Caicedo, Jaime E. Muñoz-Florez, L. Carmenza Muñoz, Matthew Wohlgemuth Blair Apr 2021

Allelic Diversity At Abiotic Stress Responsive Genes In Relationship To Ecological Drought Indices For Cultivated Tepary Bean, Phaseolus Acutifolius A. Gray, And Its Wild Relatives, María A. Buitrago-Bitar, Andrés J. Cortés, Felipe López-Hernández, Jorge M. Londoño-Caicedo, Jaime E. Muñoz-Florez, L. Carmenza Muñoz, Matthew Wohlgemuth Blair

Agricultural and Environmental Sciences Faculty Research

Some of the major impacts of climate change are expected in regions where drought stress is already an issue. Grain legumes are generally drought susceptible. However, tepary bean and its wild relatives within Phaseolus acutifolius or P. parvifolius are from arid areas between Mexico and the United States. Therefore, we hypothesize that these bean accessions have diversity signals indicative of adaptation to drought at key candidate genes such as: Asr2, Dreb2B, and ERECTA. By sequencing alleles of these genes and comparing to estimates of drought tolerance indices from climate data for the collection site of geo-referenced, tepary bean accessions, we …


Identification Of Hydrated And Dehydrated Lipids And Protein Secondary Structures In Seeds Of Cotton (Gossypium Hirsutum) Line, Diwas Kumar Silwal, Nsoki Phambu, Bharat Pokharel, Ahmad Naseer Aziz Aug 2017

Identification Of Hydrated And Dehydrated Lipids And Protein Secondary Structures In Seeds Of Cotton (Gossypium Hirsutum) Line, Diwas Kumar Silwal, Nsoki Phambu, Bharat Pokharel, Ahmad Naseer Aziz

Chemistry Faculty Research

Cottonseeds from two parents (TM-1 and 3-79) and their 17 progeny (chromosomal substitution) lines were analyzed for various secondary structures of proteins and moisture content of lipids, separately in hulls and kernels. Fourier transform infrared spectroscopy (FTIR) was used on mature seeds from Upland cotton (G. hirsutum) progeny lines and parents. Based on secondary structures of proteins and hydration levels of lipids, differences were observed among the cottonseeds. The two progeny lines – CS-B12sh and CS-B22sh retained lipid moisture content and protein secondary structures similar to both parents, while CS-B06, CS-B15sh and CS-B16 remained distinct from either parent. On the …


Comparison Of Five Major Trichome Regulatory Genes In Brassica Villosa With Orthologues Within The Brassicaceae, Naghabushana K. Nayidu, Sateesh Kagale, Ali Taheri, Thushan S. Withana-Gamage, Isobel A. P. Parkin, Andrew G. Sharpe, Margaret Y. Gruber Apr 2014

Comparison Of Five Major Trichome Regulatory Genes In Brassica Villosa With Orthologues Within The Brassicaceae, Naghabushana K. Nayidu, Sateesh Kagale, Ali Taheri, Thushan S. Withana-Gamage, Isobel A. P. Parkin, Andrew G. Sharpe, Margaret Y. Gruber

Agricultural and Environmental Sciences Faculty Research

Coding sequences for major trichome regulatory genes, including the positive regulators GLABRA 1(GL1), GLABRA 2 (GL2), ENHANCER OF GLABRA 3 (EGL3), and TRANSPARENT TESTA GLABRA 1 (TTG1) and the negative regulator TRIPTYCHON (TRY), were cloned from wild Brassica villosa, which is characterized by dense trichome coverage over most of the plant. Transcript (FPKM) levels from RNA sequencing indicated much higher expression of the GL2 and TTG1 regulatory genes in B. villosa leaves compared with expression levels of GL1 and EGL3 genes in either B. villosa or the reference genome species, glabrous B. oleracea; however, cotyledon TTG1 expression was high in …