Heterozygosity and Chain Multivalents during Meiosis Illustrate Ongoing Evolution as a Result of Multiple Holokinetic Chromosome Fusions in the Genus Melinaea (Lepidoptera, Nymphalidae)

Melanie McClure, Bernard Dutrillaux, Anne Marie Dutrillaux, Vladimir Lukhtanov, Marianne Elias

Результат исследований: Научные публикации в периодических изданияхстатьянаучнаярецензирование

4 Цитирования (Scopus)

Выдержка

Mitotic and meiotic chromosomes from 2 taxa of the genus Melinaea, M. satevis cydon and M. "satevis" tarapotensis (Lepidoptera: Nymphalidae), and from hybrids produced in captivity were obtained using an improved spreading technique and were subsequently analyzed. In one of the taxa, the presence of trivalents and tetravalents at diakinesis/metaphase I is indicative of heterozygosity for multiple chromosome fusions or fissions, which might explain the highly variable number of chromosomes previously reported in this genus. Two large and complex multivalents were observed in the meiotic cells of the hybrid males (32 chromosomes) obtained from a cross between M. "s." tarapotensis (28 chromosomes) and M. s. cydon (40-43 chromosomes). The contribution of the 2 different haploid karyotypes to these complex figures during meiosis is discussed, and a taxonomic revision is proposed. We conclude that chromosome evolution is active and ongoing, that the karyotype of the common ancestor consisted of at least 48 chromosomes, and that evolution by chromosome fusion rather than fission is responsible for this pattern. Complex chromosome evolution in this genus may drive reproductive isolation and speciation, and highlights the difficulties inherent to the systematics of this group. We also show that Melinaea chromosomes, classically considered as holocentric, are attached to unique, rather than multiple, spindle fibers.

Язык оригиналаанглийский
Страницы (с-по)213-222
Число страниц10
ЖурналCytogenetic and Genome Research
Том153
Номер выпуска4
DOI
СостояниеОпубликовано - 1 мар 2018

Отпечаток

Lepidoptera
Meiosis
Chromosomes
Karyotype
Reproductive Isolation
Meiotic Prophase I
Chromosomes, Human, Pair 2
Hybrid Cells
Haploidy
Metaphase

Предметные области Scopus

  • Генетика (клиническая)
  • Генетика
  • Молекулярная биология

Цитировать

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title = "Heterozygosity and Chain Multivalents during Meiosis Illustrate Ongoing Evolution as a Result of Multiple Holokinetic Chromosome Fusions in the Genus Melinaea (Lepidoptera, Nymphalidae)",
abstract = "Mitotic and meiotic chromosomes from 2 taxa of the genus Melinaea, M. satevis cydon and M. {"}satevis{"} tarapotensis (Lepidoptera: Nymphalidae), and from hybrids produced in captivity were obtained using an improved spreading technique and were subsequently analyzed. In one of the taxa, the presence of trivalents and tetravalents at diakinesis/metaphase I is indicative of heterozygosity for multiple chromosome fusions or fissions, which might explain the highly variable number of chromosomes previously reported in this genus. Two large and complex multivalents were observed in the meiotic cells of the hybrid males (32 chromosomes) obtained from a cross between M. {"}s.{"} tarapotensis (28 chromosomes) and M. s. cydon (40-43 chromosomes). The contribution of the 2 different haploid karyotypes to these complex figures during meiosis is discussed, and a taxonomic revision is proposed. We conclude that chromosome evolution is active and ongoing, that the karyotype of the common ancestor consisted of at least 48 chromosomes, and that evolution by chromosome fusion rather than fission is responsible for this pattern. Complex chromosome evolution in this genus may drive reproductive isolation and speciation, and highlights the difficulties inherent to the systematics of this group. We also show that Melinaea chromosomes, classically considered as holocentric, are attached to unique, rather than multiple, spindle fibers.",
keywords = "Atypical holocentric chromosomes, Butterfly, Chromosome fusion, Diversification, Hybrid, Meiotic chain multivalents, Melinaea, Meiosis/genetics, Species Specificity, Male, Animals, Spindle Apparatus/ultrastructure, Hybridization, Genetic, Genetic Speciation, Karyotyping, Metaphase, Spermatocytes/ultrastructure, Butterflies/genetics, Female, Heterozygote, Chromosomes/genetics, Mitosis/genetics, Peru, Evolution, Molecular, AGRODIAETUS BUTTERFLIES, SPECIATION, DIVERGENCE, KARYOTYPE EVOLUTION, SUTURE ZONE, NUMBERS, SYSTEMS, HOLOCENTRIC CHROMOSOMES",
author = "Melanie McClure and Bernard Dutrillaux and Dutrillaux, {Anne Marie} and Vladimir Lukhtanov and Marianne Elias",
year = "2018",
month = "3",
day = "1",
doi = "10.1159/000487107",
language = "English",
volume = "153",
pages = "213--222",
journal = "Cytogenetic and Genome Research",
issn = "1424-8581",
publisher = "S. Karger AG",
number = "4",

}

Heterozygosity and Chain Multivalents during Meiosis Illustrate Ongoing Evolution as a Result of Multiple Holokinetic Chromosome Fusions in the Genus Melinaea (Lepidoptera, Nymphalidae). / McClure, Melanie; Dutrillaux, Bernard; Dutrillaux, Anne Marie; Lukhtanov, Vladimir; Elias, Marianne.

В: Cytogenetic and Genome Research, Том 153, № 4, 01.03.2018, стр. 213-222.

Результат исследований: Научные публикации в периодических изданияхстатьянаучнаярецензирование

TY - JOUR

T1 - Heterozygosity and Chain Multivalents during Meiosis Illustrate Ongoing Evolution as a Result of Multiple Holokinetic Chromosome Fusions in the Genus Melinaea (Lepidoptera, Nymphalidae)

AU - McClure, Melanie

AU - Dutrillaux, Bernard

AU - Dutrillaux, Anne Marie

AU - Lukhtanov, Vladimir

AU - Elias, Marianne

PY - 2018/3/1

Y1 - 2018/3/1

N2 - Mitotic and meiotic chromosomes from 2 taxa of the genus Melinaea, M. satevis cydon and M. "satevis" tarapotensis (Lepidoptera: Nymphalidae), and from hybrids produced in captivity were obtained using an improved spreading technique and were subsequently analyzed. In one of the taxa, the presence of trivalents and tetravalents at diakinesis/metaphase I is indicative of heterozygosity for multiple chromosome fusions or fissions, which might explain the highly variable number of chromosomes previously reported in this genus. Two large and complex multivalents were observed in the meiotic cells of the hybrid males (32 chromosomes) obtained from a cross between M. "s." tarapotensis (28 chromosomes) and M. s. cydon (40-43 chromosomes). The contribution of the 2 different haploid karyotypes to these complex figures during meiosis is discussed, and a taxonomic revision is proposed. We conclude that chromosome evolution is active and ongoing, that the karyotype of the common ancestor consisted of at least 48 chromosomes, and that evolution by chromosome fusion rather than fission is responsible for this pattern. Complex chromosome evolution in this genus may drive reproductive isolation and speciation, and highlights the difficulties inherent to the systematics of this group. We also show that Melinaea chromosomes, classically considered as holocentric, are attached to unique, rather than multiple, spindle fibers.

AB - Mitotic and meiotic chromosomes from 2 taxa of the genus Melinaea, M. satevis cydon and M. "satevis" tarapotensis (Lepidoptera: Nymphalidae), and from hybrids produced in captivity were obtained using an improved spreading technique and were subsequently analyzed. In one of the taxa, the presence of trivalents and tetravalents at diakinesis/metaphase I is indicative of heterozygosity for multiple chromosome fusions or fissions, which might explain the highly variable number of chromosomes previously reported in this genus. Two large and complex multivalents were observed in the meiotic cells of the hybrid males (32 chromosomes) obtained from a cross between M. "s." tarapotensis (28 chromosomes) and M. s. cydon (40-43 chromosomes). The contribution of the 2 different haploid karyotypes to these complex figures during meiosis is discussed, and a taxonomic revision is proposed. We conclude that chromosome evolution is active and ongoing, that the karyotype of the common ancestor consisted of at least 48 chromosomes, and that evolution by chromosome fusion rather than fission is responsible for this pattern. Complex chromosome evolution in this genus may drive reproductive isolation and speciation, and highlights the difficulties inherent to the systematics of this group. We also show that Melinaea chromosomes, classically considered as holocentric, are attached to unique, rather than multiple, spindle fibers.

KW - Atypical holocentric chromosomes

KW - Butterfly

KW - Chromosome fusion

KW - Diversification

KW - Hybrid

KW - Meiotic chain multivalents

KW - Melinaea

KW - Meiosis/genetics

KW - Species Specificity

KW - Male

KW - Animals

KW - Spindle Apparatus/ultrastructure

KW - Hybridization, Genetic

KW - Genetic Speciation

KW - Karyotyping

KW - Metaphase

KW - Spermatocytes/ultrastructure

KW - Butterflies/genetics

KW - Female

KW - Heterozygote

KW - Chromosomes/genetics

KW - Mitosis/genetics

KW - Peru

KW - Evolution, Molecular

KW - AGRODIAETUS BUTTERFLIES

KW - SPECIATION

KW - DIVERGENCE

KW - KARYOTYPE EVOLUTION

KW - SUTURE ZONE

KW - NUMBERS

KW - SYSTEMS

KW - HOLOCENTRIC CHROMOSOMES

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UR - http://www.mendeley.com/research/heterozygosity-chain-multivalents-during-meiosis-illustrate-ongoing-evolution-result-multiple-holoki

U2 - 10.1159/000487107

DO - 10.1159/000487107

M3 - Article

VL - 153

SP - 213

EP - 222

JO - Cytogenetic and Genome Research

JF - Cytogenetic and Genome Research

SN - 1424-8581

IS - 4

ER -