Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Morphotypes and genetic diversity of Dendrobaena schmidti (Lumbricidae, Annelida). / Shekhovtsov, S. V.; Rapoport, I. B.; Poluboyarova, T. V. и др.
в: Вавиловский журнал генетики и селекции, Том 24, № 1, 01.01.2020, стр. 48-54.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
}
TY - JOUR
T1 - Morphotypes and genetic diversity of Dendrobaena schmidti (Lumbricidae, Annelida)
AU - Shekhovtsov, S. V.
AU - Rapoport, I. B.
AU - Poluboyarova, T. V.
AU - Geraskina, A. P.
AU - Golovanova, E. V.
AU - Peltek, S. E.
N1 - Шеховцов С.В., Рапопорт И.Б., Полубоярова Т.В., Гераськина А.П., Голованова Е.В., Пельтек С.Е. Морфотипы и генетическая изменчивость Dendrobaena schmidti (Lumbricidae, Annelida) // Вавиловский журнал генетики и селекции. - 2020. Т. 24. - № 1. - С. 48-54
PY - 2020/1/1
Y1 - 2020/1/1
N2 - Dendrobaena schmidti (Michaelsen, 1907) is a polymorphic earthworm species from the Caucasus and adjacent regions. Adult D. schmidti individuals have highly variable body size (from 1.5 to well over 10 cm) and color (from dark purple to total lack of pigmentation), so a lot of subspecies of D. schmidti have been described; however, the existence of most of them is currently under dispute. We studied the genetic diversity of D. schmidti from seven locations from the Western Caucasus using mitochondrial (a fragment of the cytochrome oxidase I gene) and nuclear (internal ribosomal transcribed spacer 2) DNA. For both genes studied, we found that our sample was split into two groups. The first group included somewhat bigger (3-7.5 cm) individuals that were only slightly pigmented or totally unpigmented (when fixed by ethanol). The second group contained small (1.7-3.5 cm) specimens with dark purple pigmentation. In one of the studied locations these two groups were found in sympatry. However, there were no absolute differences either in general appearance (pigmented/unpigmented, small/big) or among diagnostic characters. Although the two groups differed in size (the majority of individuals from the first group were 5-6 cm long, and of the second one, 2-3 cm), the studied samples overlapped to a certain degree. Pigmentation, despite apparent differences, was also unreliable, since it was heavily affected by fixation of the specimens. Thus, based on the obtained data we can conclude that D. schmidti consists of at least two species that have identical states of diagnostic characters, but differ in general appearance.
AB - Dendrobaena schmidti (Michaelsen, 1907) is a polymorphic earthworm species from the Caucasus and adjacent regions. Adult D. schmidti individuals have highly variable body size (from 1.5 to well over 10 cm) and color (from dark purple to total lack of pigmentation), so a lot of subspecies of D. schmidti have been described; however, the existence of most of them is currently under dispute. We studied the genetic diversity of D. schmidti from seven locations from the Western Caucasus using mitochondrial (a fragment of the cytochrome oxidase I gene) and nuclear (internal ribosomal transcribed spacer 2) DNA. For both genes studied, we found that our sample was split into two groups. The first group included somewhat bigger (3-7.5 cm) individuals that were only slightly pigmented or totally unpigmented (when fixed by ethanol). The second group contained small (1.7-3.5 cm) specimens with dark purple pigmentation. In one of the studied locations these two groups were found in sympatry. However, there were no absolute differences either in general appearance (pigmented/unpigmented, small/big) or among diagnostic characters. Although the two groups differed in size (the majority of individuals from the first group were 5-6 cm long, and of the second one, 2-3 cm), the studied samples overlapped to a certain degree. Pigmentation, despite apparent differences, was also unreliable, since it was heavily affected by fixation of the specimens. Thus, based on the obtained data we can conclude that D. schmidti consists of at least two species that have identical states of diagnostic characters, but differ in general appearance.
KW - Cox1
KW - Dendrobaena schmidti
KW - Earthworms
KW - ITS2
KW - Phylogeny
KW - EARTHWORMS OLIGOCHAETA
KW - MITOCHONDRIAL
KW - cox1
KW - LINEAGES
KW - earthworms
KW - phylogeny
KW - CRYPTIC DIVERSITY
KW - NORDENSKIOLDI LUMBRICIDAE
UR - http://www.scopus.com/inward/record.url?scp=85082942444&partnerID=8YFLogxK
U2 - 10.18699/VJ20.594
DO - 10.18699/VJ20.594
M3 - Article
C2 - 33659780
AN - SCOPUS:85082942444
VL - 24
SP - 48
EP - 54
JO - Вавиловский журнал генетики и селекции
JF - Вавиловский журнал генетики и селекции
SN - 2500-0462
IS - 1
ER -
ID: 23985374