Morphological traits defining species differences in wild relatives of maize are controlled by multiple quantitative trait loci

Evolution; International Journal of Organic Evolution
Anna Westerbergh, John Doebley

Abstract

We analyzed the genetic basis of morphological differences between two wild species of teosinte (Zea diploperennis and Z. mays ssp. parviglumis), which are relatives of maize. These two species differ in a number of taxonomically important traits including the structure of the tassel (male inflorescence), which is the focus of this report. To investigate the genetic inheritance of six tassel traits, quantitative trait locus (QTL) mapping with 95 RFLP markers was employed on a population of 425 F2 plants. Each trait was analyzed by interval mapping (IM) and composite interval mapping (CIM) to identify and characterize the QTL controlling the differences in tassel morphology. We detected two to eight QTL for each trait. In total, 30 QTL with IM and 33 QTL with CIM were found for tassel morphology. QTL for several of the traits mapped near each other, suggesting pleiotropy and/or linkage of QTL. The QTL showed small to moderate magnitudes of effect. No QTL of exceptionally large effect were found as seen under domestication and in the case of some other natural species. Thus, the model involving major QTL of large effect seems not to apply to the traits and species analyzed. A mixture of QTL with positive and negative allelic effe...Continue Reading

References

Mar 1, 1988·Genetics·B BurrC W Stuber
Jan 1, 1983·Annual Review of Genetics·J M Smith
Apr 1, 1994·Genetics·Z B Zeng
Jun 1, 1993·Genetics·M C deVicente, S D Tanksley
Dec 1, 1993·Proceedings of the National Academy of Sciences of the United States of America·Z B Zeng
Apr 16, 1998·Proceedings of the National Academy of Sciences of the United States of America·J KyozukaK Shimamoto
Jul 2, 1999·Genetics·C H KaoR D Teasdale
Dec 15, 1990·Proceedings of the National Academy of Sciences of the United States of America·J DoebleyM Edwards
Nov 1, 1992·The American Naturalist·H A Orr, J A Coyne
Jul 1, 1995·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Z LiW D Park
Nov 1, 1995·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Z Ran, G Michaelis
Oct 1, 1991·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·W D Beavis, D Grant

❮ Previous
Next ❯

Citations

Sep 1, 2004·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Anna Westerbergh, John Doebley
Jan 14, 2004·Proceedings of the National Academy of Sciences of the United States of America·Christen Brownlee
Apr 27, 2012·Genetics and Molecular Research : GMR·G WangR T Song
May 11, 2005·Genetica·Jeffrey Ross-Ibarra
May 1, 2007·Biochemistry and Molecular Biology Education : a Bimonthly Publication of the International Union of Biochemistry and Molecular Biology·Lauren WalshElizabeth A De Stasio
Feb 13, 2008·Evolution; International Journal of Organic Evolution·Noland H MartinMichael L Arnold
Nov 17, 2007·Evolution; International Journal of Organic Evolution·Arianne Y K AlbertDolph Schluter
Aug 30, 2007·Evolution; International Journal of Organic Evolution·Amy BouckMichael L Arnold
Sep 1, 2010·Evolutionary Applications·Leonie C Moyle, Christopher D Muir
Jun 8, 2006·Annals of Botany·Martin BrattelerAlex Widmer
May 13, 2017·The Journal of Heredity·Sri Pratima NandamuriKaren L Carleton
Apr 24, 2020·Cannabis and Cannabinoid Research·Lesley G CampbellSarah A Sabatinos
Aug 12, 2016·G3 : Genes - Genomes - Genetics·Daniel FulopNeelima R Sinha

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.