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Hybrids between Rubus idaeus and Rubus sect. Corylifolii and their relation to R. pruinosus and R. rosanthus

Ryde, Ulf LU orcid ; Montes, Melanie S. ; Zhou, Mingyue ; Mattsson, Tore ; Burén, Tomas and Hedrén, Mikael LU (2021) In Nordic Journal of Botany 39(8).
Abstract

We have studied hybrids between Rubus idaeus and various members of R. sect. Corylifolii, primarily in Sweden. With the help of DNA-ploidy level determinations using flow cytometry and microsatellite DNA analysis of over 500 samples, we show that the material can be divided into four stable apomictic species (belonging to subsect. Subidaei) and a large number of primary hybrids. Stable species can be recognised by a distribution that is distinct from the Corylifolii parent, a uniform morphology and an almost invariant genetic pattern. We confirm that R. cordatiformis has arisen from the hybrid R. eluxatus × idaeus. Moreover, our study shows that R. lagerbergii has arisen from the hybrid R. dissimulans × idaeus. For R. onsalaënsis, we... (More)

We have studied hybrids between Rubus idaeus and various members of R. sect. Corylifolii, primarily in Sweden. With the help of DNA-ploidy level determinations using flow cytometry and microsatellite DNA analysis of over 500 samples, we show that the material can be divided into four stable apomictic species (belonging to subsect. Subidaei) and a large number of primary hybrids. Stable species can be recognised by a distribution that is distinct from the Corylifolii parent, a uniform morphology and an almost invariant genetic pattern. We confirm that R. cordatiformis has arisen from the hybrid R. eluxatus × idaeus. Moreover, our study shows that R. lagerbergii has arisen from the hybrid R. dissimulans × idaeus. For R. onsalaënsis, we unexpectedly identify the Corylifolii ancestor as a previously unidentified species with a very restricted distribution in the northern part of the province of Halland, which is here described as R. antecedens. Furthermore, we show that R. pruinosus s. str. has arisen from the hybrid R. aureolus × idaeus and that it is known only from a rather restricted area in the provinces of Småland, Östergötland and Södermanland in eastern Sweden. On the other hand, the great majority of what has been called R. pruinosus is a diverse collection of primary hybrids between R. idaeus and various R. sect. Corylifolii species, which show a large variation both genetically and morphologically. The same applies to R. rosanthus, which represents R. norvegicus × idaeus hybrids: The microsatellite analysis shows that they have arisen independently and therefore should be considered as primary hybrids. We also identified primary hybrids between R. idaeus and R. gothicus (by far the most common hybrid in Sweden), R. aureolus, R. camptostachys, R. decurrentispinus, R. eluxatus, R. friesianus, R. hallandicus, R. lidforssii and R. norvegicus.

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organization
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type
Contribution to journal
publication status
published
subject
keywords
apomixis, Rubus antecedens, Rubus idaeus hybrids, Rubus lagerbergii, Rubus pruinosus, Rubus rosanthus, Weberian species concept
in
Nordic Journal of Botany
volume
39
issue
8
article number
e03111
publisher
Wiley-Blackwell
external identifiers
  • scopus:85114791284
ISSN
0107-055X
DOI
10.1111/njb.03111
language
English
LU publication?
yes
id
7d19f94d-913d-4c13-9cd0-b3e1b4cebaa3
date added to LUP
2021-10-11 11:43:12
date last changed
2023-04-02 18:10:59
@article{7d19f94d-913d-4c13-9cd0-b3e1b4cebaa3,
  abstract     = {{<p>We have studied hybrids between Rubus idaeus and various members of R. sect. Corylifolii, primarily in Sweden. With the help of DNA-ploidy level determinations using flow cytometry and microsatellite DNA analysis of over 500 samples, we show that the material can be divided into four stable apomictic species (belonging to subsect. Subidaei) and a large number of primary hybrids. Stable species can be recognised by a distribution that is distinct from the Corylifolii parent, a uniform morphology and an almost invariant genetic pattern. We confirm that R. cordatiformis has arisen from the hybrid R. eluxatus × idaeus. Moreover, our study shows that R. lagerbergii has arisen from the hybrid R. dissimulans × idaeus. For R. onsalaënsis, we unexpectedly identify the Corylifolii ancestor as a previously unidentified species with a very restricted distribution in the northern part of the province of Halland, which is here described as R. antecedens. Furthermore, we show that R. pruinosus s. str. has arisen from the hybrid R. aureolus × idaeus and that it is known only from a rather restricted area in the provinces of Småland, Östergötland and Södermanland in eastern Sweden. On the other hand, the great majority of what has been called R. pruinosus is a diverse collection of primary hybrids between R. idaeus and various R. sect. Corylifolii species, which show a large variation both genetically and morphologically. The same applies to R. rosanthus, which represents R. norvegicus × idaeus hybrids: The microsatellite analysis shows that they have arisen independently and therefore should be considered as primary hybrids. We also identified primary hybrids between R. idaeus and R. gothicus (by far the most common hybrid in Sweden), R. aureolus, R. camptostachys, R. decurrentispinus, R. eluxatus, R. friesianus, R. hallandicus, R. lidforssii and R. norvegicus.</p>}},
  author       = {{Ryde, Ulf and Montes, Melanie S. and Zhou, Mingyue and Mattsson, Tore and Burén, Tomas and Hedrén, Mikael}},
  issn         = {{0107-055X}},
  keywords     = {{apomixis; Rubus antecedens; Rubus idaeus hybrids; Rubus lagerbergii; Rubus pruinosus; Rubus rosanthus; Weberian species concept}},
  language     = {{eng}},
  number       = {{8}},
  publisher    = {{Wiley-Blackwell}},
  series       = {{Nordic Journal of Botany}},
  title        = {{Hybrids between Rubus idaeus and Rubus sect. Corylifolii and their relation to R. pruinosus and R. rosanthus}},
  url          = {{http://dx.doi.org/10.1111/njb.03111}},
  doi          = {{10.1111/njb.03111}},
  volume       = {{39}},
  year         = {{2021}},
}