Results 161 to 170 of about 1,091 (183)
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Karyotype evolution in apomictic Boechera and the origin of the aberrant chromosomes
The Plant Journal, 2015SummaryChromosome rearrangements may result in both decrease and increase of chromosome numbers. Here we have used comparative chromosome painting (CCP) to reconstruct the pathways of descending and ascending dysploidy in the genus Boechera (tribe Boechereae, Brassicaceae).
Mandáková, T. +4 more
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Journal of Experimental Botany
In higher plants, sexual reproduction is characterized by meiosis of the first cells of the germlines, and double fertilization of egg and central cell after gametogenesis. In contrast, in apomicts of the genus Boechera, meiosis is omitted or altered and
Laura Binmöller +11 more
semanticscholar +1 more source
In higher plants, sexual reproduction is characterized by meiosis of the first cells of the germlines, and double fertilization of egg and central cell after gametogenesis. In contrast, in apomicts of the genus Boechera, meiosis is omitted or altered and
Laura Binmöller +11 more
semanticscholar +1 more source
2021
?????????????????????? ???????????????????????? ?????????????????????? ???????????????? ???????????????? ?????????? 1 ?? 2 ?????????????? ?????????????????? ???????????????????????? ?????????????????? ?? ???????????????????????????????????? ???????????????????? ???????? Boechera ?????????????? ???????????????????? ??????????????. ?????????????? ????????
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?????????????????????? ???????????????????????? ?????????????????????? ???????????????? ???????????????? ?????????? 1 ?? 2 ?????????????? ?????????????????? ???????????????????????? ?????????????????? ?? ???????????????????????????????????? ???????????????????? ???????? Boechera ?????????????? ???????????????????? ??????????????. ?????????????? ????????
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Evolution; international journal of organic evolution, 2019
Heritable genetic variation is necessary for populations to evolve in response to anthropogenic climate change. However, antagonistic genetic correlations among traits may constrain the rate of adaptation, even if substantial genetic variation exists. We
Jordan B. Bemmels, Jill T. Anderson
semanticscholar +1 more source
Heritable genetic variation is necessary for populations to evolve in response to anthropogenic climate change. However, antagonistic genetic correlations among traits may constrain the rate of adaptation, even if substantial genetic variation exists. We
Jordan B. Bemmels, Jill T. Anderson
semanticscholar +1 more source
2021
???????????????????? ?? ???????????????? ?????????? ?????????????? ???????????????????? ?????????????? ???? ???????????? ?????????????????????? Csp6I ?? ???????????????????????????? ???????????????????????? CG- ?????? ????-???????????????? ?????????????? ??????????????????. ?????????????????????? ?????????????????? ???????????????????? ????????????????
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???????????????????? ?? ???????????????? ?????????? ?????????????? ???????????????????? ?????????????? ???? ???????????? ?????????????????????? Csp6I ?? ???????????????????????????? ???????????????????????? CG- ?????? ????-???????????????? ?????????????? ??????????????????. ?????????????????????? ?????????????????? ???????????????????? ????????????????
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Molecular signatures of apomictic and sexual ovules in the Boechera holboellii complex
The Plant Journal, 2009SummaryApomixis, a natural form of asexual seed production in plants, has evolved independently in various taxa, and represents an important potential technology for agriculture. The switch to apomixis is based on de‐regulation of developmental pathways originally leading to sexual seed formation.
Sharbel, T. +7 more
openaire +3 more sources
2021
Aims. Apomixis is the clonal reproduction of floral plants by seeds without both meiosis and fertilization. Apomixis has great biotechnological benefits in excess of the gain from the ???green revolution??? Norman Borlaug. Nevertheless the genetic control of apomixis is not clear and speculative till now.
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Aims. Apomixis is the clonal reproduction of floral plants by seeds without both meiosis and fertilization. Apomixis has great biotechnological benefits in excess of the gain from the ???green revolution??? Norman Borlaug. Nevertheless the genetic control of apomixis is not clear and speculative till now.
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A new chromosome was born: comparative chromosome painting in Boechera
Trends in Plant Science, 2015Comparative chromosome painting is a powerful tool to study the evolution of chromosomes and genomes. Analyzing karyotype evolution in cruciferous plants highlights the origin of aberrant chromosomes in apomictic Boechera and further establishes the cruciferous plants as important model system for our understanding of plant chromosome and genome ...
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Boechera Dentata Is the Correct Name for B. Shortii (Brassicaceae)
Harvard Papers in Botany, 2008ABSTRACT The new combination Boechera dentata is proposed to replace the most commonly used B. shortii or Arabis shortii (Brassicaceae) for a species widespread in eastern and central United States and rare in Ontario, Canada. The complex nomenclatural history of the species is presented.
Ihsan A. Al-Shehbaz, James L. Zarucchi
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Boechera, a model system for ecological genomics.
Molecular ecology, 2012The selection and development of a study system for evolutionary and ecological functional genomics (EEFG) depend on a variety of factors. Here, we present the genus Boechera as an exemplary system with which to address ecological and evolutionary questions. Our focus on Boechera is based on several characteristics as follows: (i) native populations in
Catherine A, Rushworth +3 more
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