Inheritance of amplified fragment length polymorphism markers and their utility in population genetic analysis of <i>Plecoglossus altivelis</i>

Kakehi, Yoko; Nakayama, Kouji; Watanabe, Katsutoshi; Nishida, Mutsumi

doi:10.1111/j.0022-1112.2005.00683.x

Cited by 15 publications

(12 citation statements)

References 31 publications

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“…Moreover, five AFLP bands were diagnostic markers for C. sempervirens (one band) and C. dupreziana (four bands). A nuclear biparental inheritance is usually reported for AFLP markers (Lerceteau and Szmidt 1999;Kakehi et al 2005). A nuclear inheritance was also demonstrated for 6 of our 32 markers by analyzing segregation of AFLP bands in progeny produced by C. sempervirens-controlled crosses (data not shown).…”

Section: Resultssupporting

confidence: 71%

Cypress Surrogate Mother Produces Haploid Progeny From Alien Pollen

et al. 2008

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Although most living organisms reproduce sexually, some have developed a uniparental reproduction where the embryo usually derives from the female parent. A unique case of paternal apomixis in plants has been recently reported in Cupressus dupreziana, an endangered Mediterranean conifer. This species produces unreduced pollen that develop into all-paternal embryos within the seed tissues. We analyzed seedlings produced by open-pollinated C. dupreziana seed trees using morphological descriptors, ploidy levels assessed through flow cytometry, and AFLP genetic diversity. In situ C. dupreziana seed trees (from Algeria) produced only diploid C. dupreziana progeny. In contrast, only one-third of the progeny produced by ex situ C. dupreziana seed trees planted in French collections were similar to C. dupreziana seedlings; the other progeny were haploid or diploid C. sempervirens seedlings. These results demonstrate that C. dupreziana ovules allow for the development of all-paternal embryos from pollen produced by another species, C. sempervirens. Thus, the in planta androgenesis is achieved through the combination of the embryogenic behavior of pollen grains and the ability of seed tree ovules to act as a surrogate mother. This phenomenon offers a unique opportunity to produce, by natural means, highly valuable material for genetic studies and selection of sterile cultivars.

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Section: Resultssupporting

confidence: 71%

Cypress Surrogate Mother Produces Haploid Progeny From Alien Pollen

et al. 2008

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“…The presence or absence of nine AFLP fragments, however, was fixed between the two species and the NJ tree based on AFLP data clearly separated them (Fig. 4), whereas hybrid specimens can be expected to have an intermediate AFLP fragment pattern between the parental species (Young et al , 2001; Kai et al , 2011), due to those fragments being inherited following Mendelian expectations (Kakehi et al , 2005). The clear separation of S. longispinis and S. hubbsi in the AFLP fragment pattern suggested an absence of hybrid specimens in the material examined, with on‐going hybridization between the two species being likely to be very rare, if at all present.…”

Section: Discussionmentioning

confidence: 99%

The incomplete history of mitochondrial lineages between two rockfishes, Sebastes longispinis and Sebastes hubbsi (Scorpaeniformes: Scorpaenidae)

Kai

Park

Nakabo

2012

Journal of Fish Biology

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The genetic divergence between two closely related rockfishes, Sebastes longispinis and Sebastes hubbsi, was inferred from both mitochondrial DNA (mtDNA) sequence variations and amplified fragment length polymorphism (AFLP) markers. The two species were placed into two distinct clades in a neighbour-joining tree based on the AFLP data, clearly indicating that they represented separate species. Although this evidence, together with a previous morphological study, revealed clear differences between the two species, no obvious clustering of haplotypes by species was detected in the minimum spanning network inferred from sequence variations in the mtDNA control region (c. 500 base pairs). In fact, the significant Φ(ST) estimates indicated only a restriction of gene flow between the two species. Uncorrected pairwise sequence differences in mtDNA between two species were small (1·8% at maximum, on the lower end of the range of control region divergence between previously studied sister species pairs), suggesting their speciation event as having been fairly recent. The incongruent results of AFLP and mtDNA phylogenies suggested incomplete lineage sorting and introgression of mtDNA in the course of the evolution of the two species. Differences in their main distributional ranges and the small level of sequence divergence in mtDNA suggests that speciation and dispersal may have been associated with glacio-eustatic sea level fluctuations between the Japanese Archipelago and the Korean Peninsula during the past 0·4 million years.

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“…In the PCoA of AFLP, most specimens clearly fell into one or the other of the two groups on the PCo1 axis, although three specimens were intermediate. As the fragments detected by AFLP are inherited following Mendelian principles (Kakehi et al 2005), any hybrid specimens can be generally expected to have a fragment pattern that is intermediate between the parental species (e.g., Young et al 2001). Therefore, the three intermediate specimens on PCo 1 suggest a low rate of hybridization and introgression between the P-Ni and Nu-C species.…”

Section: Discussionmentioning

confidence: 99%

Genetic and morphological divergence within the Sebastes pachycephalus complex (Scorpaeniformes: Scorpaenidae)

2011

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Genetic and morphological divergence among the four subspecies in the Sebastes pachycephalus complex (S. pachycephalus pachycephalus, S. p. nigricans, S. p. nudus and S. p. chalcogrammus) was clarified. Principal coordinate analysis (PCoA) based on AFLP clearly divided 55 specimens of the complex into two groups, the S. p. pachycephalus-S. p. nigricans group (P-Ni group) and the S. p. nudus-S. p. chalcogrammus group (Nu-C group), although three specimens occupied intermediate positions.The minimum spanning network (MSN) based on partial sequences of the mitochondrial control region (mtCR) failed to separate either the P-Ni and Nu-C groups or the four subspecies into distinct clades, although restricted gene flow and genetic differentiation between the former were indicated by the F ST estimation. Differences in morphological characters, including counts of pectoral fin rays and counts of dorsal fin spines lacking basal scales, were also evident between the two groups. However, little or no genetic or morphological difference was found between the two subspecies within each group. It was concluded that the P-Ni and Nu-C groups of the S. pachycephalus complex actually represent two different species, which is further supported by their sympatric distribution. Differences in dorsal body coloration and the presence or absence of brown spots on the ventral surface, which were formerly used to discriminate between four ''subspecies,'' may simply represent intraspecific variation. The three specimens occupying intermediate positions in the AFLP PCoA also occupied equivocal positions between the two species in the principal component analysis (PCA) based on morphometric characters, suggesting that they were hybrids between the two species. The star-shaped MSN of mtCR, which lacks distinct clades representing the two species, may be due to not only interspecific hybridization but also the sharing of ancestral haplotypes.

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Inheritance of amplified fragment length polymorphism markers and their utility in population genetic analysis of Plecoglossus altivelis

Cited by 15 publications

References 31 publications

Cypress Surrogate Mother Produces Haploid Progeny From Alien Pollen

Cypress Surrogate Mother Produces Haploid Progeny From Alien Pollen

The incomplete history of mitochondrial lineages between two rockfishes, Sebastes longispinis and Sebastes hubbsi (Scorpaeniformes: Scorpaenidae)

Genetic and morphological divergence within the Sebastes pachycephalus complex (Scorpaeniformes: Scorpaenidae)

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