Measurements of lethal and nonlethal inbreeding depression inform the de novo domestication of Silphium integrifolium.

American Journal of Botany
John H PriceKevin P Smith

Abstract

Inbreeding depression, or the reduction in fitness of progeny with related parents, has the potential to adversely affect the long-term viability of both wild and captive plant populations. Silphium integrifolium, a prairie plant native to the central United States, has been identified as a potential candidate for domestication as a perennial oilseed crop. Little is known about the potential for inbreeding depression in this species, but it is expected to be nonnegligible because S. integrifolium is both perennial and self-incompatible. Here, we measure lethal inbreeding depression expressed through embryo deaths, and nonlethal inbreeding depression expressed through changes in vigor and fitness phenotypes of progeny. First, we made controlled crosses among related and unrelated individuals to determine the effect of two different levels of inbreeding on seed production. Then, we grew inbred and outbred progeny from this population to reproductive maturity and measured 11 key traits. We found that within an improved S. integrifolium population, individuals carried an average of slightly less than one lethal allele per gamete. In progeny, significant inbreeding depression was observed in at least one family for eight of the 11 m...Continue Reading

References

Feb 25, 2000·The American Naturalist·Mark Kirkpatrick, Philippe Jarne
Dec 7, 2000·Evolution; International Journal of Organic Evolution·D L Remington, D M O'Malley
Jul 2, 2003·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·David E Carr, Michele R Dudash
May 25, 2005·Genetics·Jacob A Moorad, Michael J Wade
Nov 1, 1956·Proceedings of the National Academy of Sciences of the United States of America·N E MortonH J Muller
Jan 5, 2008·Molecular Ecology·Paul L Leberg, Brigette D Firmin
Oct 13, 2009·Evolution; International Journal of Organic Evolution·Stuart WageniusRuth G Shaw
Oct 17, 2009·Nature Reviews. Genetics·Deborah Charlesworth, John H Willis
Oct 19, 2014·American Journal of Botany·Lee R DeHaan, David L Van Tassel
Jun 16, 2016·Molecular Biology and Evolution·Thomas J Y KonoPeter L Morrell
Jan 1, 1984·Evolution; International Journal of Organic Evolution·Donald A Levin
Oct 11, 2017·The Journal of Heredity·Brook T MoyersJohn K McKay
Jan 31, 2019·Evolutionary Applications·Pirmin NietlisbachLukas F Keller

❮ 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.

Related Papers

Evolution; International Journal of Organic Evolution
Leslie A Pray, Charles J Goodnight
Evolution; International Journal of Organic Evolution
Hans Peter Koelewijn
© 2021 Meta ULC. All rights reserved