TY - JOUR
T1 - Hybridogenesis in the Water Frogs from Western Russian Territory
T2 - Intrapopulation Variation in Genome Elimination
AU - Miura, Ikuo
AU - Vershinin, Vladimir
AU - Vershinina, Svetlana
AU - Lebedinskii, Andrei
AU - Trofimov, Alexander
AU - Sitnikov, Ivan
AU - Ito, Michihiko
N1 - Funding Information:
This research was supported by JSPS and Russian Foundation for Basic Research (RFBR) under the Japan\u2013Russia Research Cooperative Program (2018\u20132019), the Russian Foundation for Basic Research (grant no. 18-54-50013 to V.V.), and the program 211 of the Government of the Russian Federation (agreement no. 02.A03.21.0006). This study was performed within the framework of the state contract with the Institute of Plant and Animal Ecology, Ural Branch of the Russian Academy of Sciences.
Funding Information:
Funding: This research was supported by JSPS and Russian Foundation for Basic Research (RFBR) under the Japan\u2013Russia Research Cooperative Program (2018\u20132019), the Russian Foundation for Basic Research (grant no. 18-54-50013 to V.V.), and the program 211 of the Government of the Russian Federation (agreement no. 02.A03.21.0006). This study was performed within the framework of the state contract with the Institute of Plant and Animal Ecology, Ural Branch of the Russian Academy of Sciences.
Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2021/2
Y1 - 2021/2
N2 - Hybridogenesis in an interspecific hybrid frog is a coupling mechanism in the gametogenic cell line that eliminates the genome of one parental species with endoduplication of the remaining genome of the other parental species. It has been intensively investigated in the edible frog Pelophylax kl. esculentus (RL), a natural hybrid between the marsh frog P. ridibundus (RR) and the pool frog P. lessonae (LL). However, the genetic mechanisms involved remain unclear. Here, we investigated the water frogs in the western Russian territory. In three of the four populations, we genetically identified 16 RL frogs living sympatrically with the parental LL species, or with both parental species. In addition, two populations contained genome introgression with another species, P. bedriagae (BB) (a close relative of RR). In the gonads of 13 RL frogs, the L genome was eliminated, producing gametes of R (or R combined with the B genome). In sharp contrast, one RL male eliminated the L or R genome, producing both R and L sperm. We detected a variation in genome elimination within a population. Based on the genetic backgrounds of RL frogs, we hypothesize that the introgression of the B genome resulted in the change in choosing a genome to be eliminated.
AB - Hybridogenesis in an interspecific hybrid frog is a coupling mechanism in the gametogenic cell line that eliminates the genome of one parental species with endoduplication of the remaining genome of the other parental species. It has been intensively investigated in the edible frog Pelophylax kl. esculentus (RL), a natural hybrid between the marsh frog P. ridibundus (RR) and the pool frog P. lessonae (LL). However, the genetic mechanisms involved remain unclear. Here, we investigated the water frogs in the western Russian territory. In three of the four populations, we genetically identified 16 RL frogs living sympatrically with the parental LL species, or with both parental species. In addition, two populations contained genome introgression with another species, P. bedriagae (BB) (a close relative of RR). In the gonads of 13 RL frogs, the L genome was eliminated, producing gametes of R (or R combined with the B genome). In sharp contrast, one RL male eliminated the L or R genome, producing both R and L sperm. We detected a variation in genome elimination within a population. Based on the genetic backgrounds of RL frogs, we hypothesize that the introgression of the B genome resulted in the change in choosing a genome to be eliminated.
KW - Pelopylax kl
KW - esculentus
KW - genome introgression
KW - cytochrome b
KW - Serum albumin
KW - Cytochrome b
KW - Pelopylax kl. esculentus
KW - Genome introgression
UR - http://www.scopus.com/inward/record.url?scp=85101206817&partnerID=8YFLogxK
U2 - 10.3390/genes12020244
DO - 10.3390/genes12020244
M3 - Article
SN - 2073-4425
VL - 12
SP - 1
EP - 14
JO - Genes
JF - Genes
IS - 2
M1 - 244
ER -