Insights into Species Delimitation of Selected Species in the Flowering Plant Genus Medicago section Buceras (Leguminosae)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14740%2F22%3A00127894" target="_blank" >RIV/00216224:14740/22:00127894 - isvavai.cz</a>
Result on the web
<a href="https://www.ingentaconnect.com/content/aspt/sb/2022/00000047/00000002/art00009" target="_blank" >https://www.ingentaconnect.com/content/aspt/sb/2022/00000047/00000002/art00009</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1600/036364422X16512564801533" target="_blank" >10.1600/036364422X16512564801533</a>
Alternative languages
Result language
angličtina
Original language name
Insights into Species Delimitation of Selected Species in the Flowering Plant Genus Medicago section Buceras (Leguminosae)
Original language description
The genus Medicago (Leguminosae, Papilionoideae) contains about 90 species including the important forage crop alfalfa Medicago sativa and the genomic model Medicago truncatula. Despite intensive research on the genus because of its agricultural importance, there is a relative lack of information about chromosome number and genome size in some Medicago species, especially those from Medicago section Buceras that were formerly placed in the sister genus Trigonella, and are paraphyletic to the remainder of the genus Medicago. Past studies revealed that previous species delimitations did not conform well with complex patterns of morphological or genetic variation. Some published chromosome numbers, e.g. 2n = 28 and 2n = 44, differ from those of the rest of the genus, which are mostly 2n = 16 or polyploids thereof, although some cases of aneuploid reduction or dysploidy (e.g. 2n = 14) do exist. Here we estimated phylogenetic relationships of 42 accessions corresponding to 14 currently recognized Medicago species that are paraphyletic to the remainder of Medicago with a focus on Medicago monantha; for a number of those accessions we obtained estimates of genome size (39) and chromosome number (14). We can confirm the delimitation of two species within M. section Buceras and our data suggest that there are at least two entities with distinct geographic distributions within the currently recognized species M. monantha, which differ in chromosome number and genome size. Our data also suggest that polyploidy and post-polyploid descending dysploidy played a significant role in genome evolution within M. section Buceras. Our data provide a strong foundation for whole-genome sequencing projects and further in-depth research of these paraphyletic lineages.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10611 - Plant sciences, botany
Result continuities
Project
<a href="/en/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
SYSTEMATIC BOTANY
ISSN
0363-6445
e-ISSN
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Volume of the periodical
47
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
431-440
UT code for WoS article
000815785300007
EID of the result in the Scopus database
2-s2.0-85132696484