lepidium-like, a Naturally Occurring Mutant of Capsella bursa-pastoris, and Its Implications on the Evolution of Petal Loss in Cruciferae

Naturally occurring mutants whose phenotype recapitulates the changes that distinguish closely related species are of special interest from the evolutionary point of view. They can give a key about the genetic control of the changes that led to speciation. In this study, we described lepidium-like (...

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Autores principales:	Anna V. Klepikova, Elina D. Shnayder, Artem S. Kasianov, Margarita V. Remizowa, Dmitry D. Sokoloff, Aleksey A. Penin
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	apetaly Capsella bursa-pastoris flower development genetic analysis heterochrony morphological evolution Plant culture SB1-1110
Acceso en línea:	https://doaj.org/article/efa12397534d46a3a730a9a464b4aa4d
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spelling	oai:doaj.org-article:efa12397534d46a3a730a9a464b4aa4d2021-12-01T02:28:56Zlepidium-like, a Naturally Occurring Mutant of Capsella bursa-pastoris, and Its Implications on the Evolution of Petal Loss in Cruciferae1664-462X10.3389/fpls.2021.714711https://doaj.org/article/efa12397534d46a3a730a9a464b4aa4d2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fpls.2021.714711/fullhttps://doaj.org/toc/1664-462XNaturally occurring mutants whose phenotype recapitulates the changes that distinguish closely related species are of special interest from the evolutionary point of view. They can give a key about the genetic control of the changes that led to speciation. In this study, we described lepidium-like (lel), a naturally occurring variety of an allotetraploid species Capsella bursa-pastoris that is characterized by the typical loss of all four petals. In some cases, one or two basal flowers in the raceme had one or two small petals. The number and structure of other floral organs are not affected. Our study of flower development in the mutant showed that once initiated, petals either cease further development and cannot be traced in anthetic flowers or sometimes develop to various degrees. lel plants showed an earlier beginning of floral organ initiation and delayed petal initiation compared to the wild-type plants. lel phenotype has a wide geographical distribution, being found at the northern extremity of the species range as well as in the central part. The genetic analysis of inheritance demonstrated that lel phenotype is controlled by two independent loci. While the flower in the family Cruciferae generally has a very stable structure (i.e., four sepals, four petals, six stamens, and two carpels), several deviations from this ground plan are known, in particular in the genus Lepidium, C. bursa-pastoris is an emerging model for the study of polyploidy (which is also very widespread in Cruciferae); the identification and characterization of the apetalous mutant lays a foundation for further research of morphological evolution in polyploids.Anna V. KlepikovaElina D. ShnayderElina D. ShnayderArtem S. KasianovMargarita V. RemizowaDmitry D. SokoloffAleksey A. PeninFrontiers Media S.A.articleapetalyCapsella bursa-pastorisflower developmentgenetic analysisheterochronymorphological evolutionPlant cultureSB1-1110ENFrontiers in Plant Science, Vol 12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	apetaly Capsella bursa-pastoris flower development genetic analysis heterochrony morphological evolution Plant culture SB1-1110
spellingShingle	apetaly Capsella bursa-pastoris flower development genetic analysis heterochrony morphological evolution Plant culture SB1-1110 Anna V. Klepikova Elina D. Shnayder Elina D. Shnayder Artem S. Kasianov Margarita V. Remizowa Dmitry D. Sokoloff Aleksey A. Penin lepidium-like, a Naturally Occurring Mutant of Capsella bursa-pastoris, and Its Implications on the Evolution of Petal Loss in Cruciferae
description	Naturally occurring mutants whose phenotype recapitulates the changes that distinguish closely related species are of special interest from the evolutionary point of view. They can give a key about the genetic control of the changes that led to speciation. In this study, we described lepidium-like (lel), a naturally occurring variety of an allotetraploid species Capsella bursa-pastoris that is characterized by the typical loss of all four petals. In some cases, one or two basal flowers in the raceme had one or two small petals. The number and structure of other floral organs are not affected. Our study of flower development in the mutant showed that once initiated, petals either cease further development and cannot be traced in anthetic flowers or sometimes develop to various degrees. lel plants showed an earlier beginning of floral organ initiation and delayed petal initiation compared to the wild-type plants. lel phenotype has a wide geographical distribution, being found at the northern extremity of the species range as well as in the central part. The genetic analysis of inheritance demonstrated that lel phenotype is controlled by two independent loci. While the flower in the family Cruciferae generally has a very stable structure (i.e., four sepals, four petals, six stamens, and two carpels), several deviations from this ground plan are known, in particular in the genus Lepidium, C. bursa-pastoris is an emerging model for the study of polyploidy (which is also very widespread in Cruciferae); the identification and characterization of the apetalous mutant lays a foundation for further research of morphological evolution in polyploids.
format	article
author	Anna V. Klepikova Elina D. Shnayder Elina D. Shnayder Artem S. Kasianov Margarita V. Remizowa Dmitry D. Sokoloff Aleksey A. Penin
author_facet	Anna V. Klepikova Elina D. Shnayder Elina D. Shnayder Artem S. Kasianov Margarita V. Remizowa Dmitry D. Sokoloff Aleksey A. Penin
author_sort	Anna V. Klepikova
title	lepidium-like, a Naturally Occurring Mutant of Capsella bursa-pastoris, and Its Implications on the Evolution of Petal Loss in Cruciferae
title_short	lepidium-like, a Naturally Occurring Mutant of Capsella bursa-pastoris, and Its Implications on the Evolution of Petal Loss in Cruciferae
title_full	lepidium-like, a Naturally Occurring Mutant of Capsella bursa-pastoris, and Its Implications on the Evolution of Petal Loss in Cruciferae
title_fullStr	lepidium-like, a Naturally Occurring Mutant of Capsella bursa-pastoris, and Its Implications on the Evolution of Petal Loss in Cruciferae
title_full_unstemmed	lepidium-like, a Naturally Occurring Mutant of Capsella bursa-pastoris, and Its Implications on the Evolution of Petal Loss in Cruciferae
title_sort	lepidium-like, a naturally occurring mutant of capsella bursa-pastoris, and its implications on the evolution of petal loss in cruciferae
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/efa12397534d46a3a730a9a464b4aa4d
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lepidium-like, a Naturally Occurring Mutant of Capsella bursa-pastoris, and Its Implications on the Evolution of Petal Loss in Cruciferae

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