scholarly journals Clade-Specific Plastid Inheritance Patterns Including Frequent Biparental Inheritance in Passiflora Interspecific Crosses

2021 ◽  
Vol 22 (5) ◽  
pp. 2278
Author(s):  
Bikash Shrestha ◽  
Lawrence E. Gilbert ◽  
Tracey A. Ruhlman ◽  
Robert K. Jansen
Keyword(s):  
Developmental Stages ◽  
Maternal Inheritance ◽  
Plastid Dna ◽  
Interspecific Crosses ◽  
Biparental Inheritance ◽  
Plastid Inheritance ◽  
Inheritance Patterns ◽  
Biparental Plastid Inheritance ◽  
Underlying Mechanisms ◽  
Plastid Transmission

Plastid inheritance in angiosperms is presumed to be largely maternal, with the potential to inherit plastids biparentally estimated for about 20% of species. In Passiflora, maternal, paternal and biparental inheritance has been reported; however, these studies were limited in the number of crosses and progeny examined. To improve the understanding of plastid transmission in Passiflora, the progeny of 45 interspecific crosses were analyzed in the three subgenera: Passiflora, Decaloba and Astrophea. Plastid types were assessed following restriction digestion of PCR amplified plastid DNA in hybrid embryos, cotyledons and leaves at different developmental stages. Clade-specific patterns of inheritance were detected such that hybrid progeny from subgenera Passiflora and Astrophea predominantly inherited paternal plastids with occasional incidences of maternal inheritance, whereas subgenus Decaloba showed predominantly maternal and biparental inheritance. Biparental plastid inheritance was also detected in some hybrids from subgenus Passiflora. Heteroplasmy due to biparental inheritance was restricted to hybrid cotyledons and first leaves with a single parental plastid type detectable in mature plants. This indicates that in Passiflora, plastid retention at later stages of plant development may not reflect the plastid inheritance patterns in embryos. Passiflora exhibits diverse patterns of plastid inheritance, providing an excellent system to investigate underlying mechanisms in angiosperms.

PLASTID INHERITANCE IN STREPTOCARPUS (GESNERIACEAE) AND AN INFERRED HYBRID ORIGIN FOR A POPULATION OF S. AFF. PRIMULIFOLIUS FROM IGODA RIVER, SOUTH AFRICA

2003 ◽  
Vol 60 (3) ◽  
pp. 389-408 ◽  
Author(s):  
M. MÖLLER ◽  
K. J. BROOKS ◽  
M. HUGHES
Keyword(s):  
South Africa ◽  
Maternal Inheritance ◽  
River Mouth ◽  
Intergenic Spacer ◽  
Morphological Data ◽  
Hybrid Origin ◽  
Interspecific Crosses ◽  
Eastern Cape ◽  
Plastid Inheritance ◽  
Maternal Parent

A length polymorphism in the trnL/trnF intergenic spacer was used as a marker to determine the mode of chloroplast inheritance in Streptocarpus (Gesneriaceae). Exclusively maternal inheritance was recorded for all the F1 progeny of reciprocal intraspecific crosses between S. primulifolius and a population referred to as S. aff. primulifolius from the Igoda River mouth, Eastern Cape, South Africa, and for interspecific crosses between S. rexii and S. dunnii. A combination of molecular and morphological data was used to clarify the origin of S. aff. primulifolius, which possesses S. rexii-type cpDNA and rDNA, while the morphological data suggest an intermediate position between S. rexii and S. primulifolius. The distribution of S. rexii and S. primulifolius, combined with molecular and morphological data, supports the hypothesis that the S. aff. primulifolius population is a hybrid between S. rexii and S. primulifolius, with S. rexii as the maternal parent, and that substantial molecular but limited morphological introgression into S. primulifolius has taken place.

scholarly journals Intra-individual heteroplasmy in the Gentiana tongolensis plastid genome (Gentianaceae)

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e8025 ◽  
Author(s):  
Shan-Shan Sun ◽  
Xiao-Jun Zhou ◽  
Zhi-Zhong Li ◽  
Hong-Yang Song ◽  
Zhi-Cheng Long ◽  
...  
Keyword(s):  
Plastid Genome ◽  
Female Parent ◽  
Plastid Dna ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
Protein Coding ◽  
Plastid Inheritance ◽  
Coding Regions ◽  
Plastid Genomes ◽  
Biparental Plastid Inheritance

Chloroplasts are typically inherited from the female parent and are haploid in most angiosperms, but rare intra-individual heteroplasmy in plastid genomes has been reported in plants. Here, we report an example of plastome heteroplasmy and its characteristics in Gentiana tongolensis (Gentianaceae). The plastid genome of G. tongolensis is 145,757 bp in size and is missing parts of petD gene when compared with other Gentiana species. A total of 112 single nucleotide polymorphisms (SNPs) and 31 indels with frequencies of more than 2% were detected in the plastid genome, and most were located in protein coding regions. Most sites with SNP frequencies of more than 10% were located in six genes in the LSC region. After verification via cloning and Sanger sequencing at three loci, heteroplasmy was identified in different individuals. The cause of heteroplasmy at the nucleotide level in plastome of G. tongolensis is unclear from the present data, although biparental plastid inheritance and transfer of plastid DNA seem to be most likely. This study implies that botanists should reconsider the heredity and evolution of chloroplasts and be cautious with using chloroplasts as genetic markers, especially in Gentiana.

scholarly journals Interspecific Hybrids Between Pelargonium × hortorum and Species From P. Section Ciconium Reveal Biparental Plastid Inheritance and Multi-Locus Cyto-Nuclear Incompatibility

2020 ◽  
Vol 11 ◽  
Author(s):  
Floris C. Breman ◽  
Ronald C. Snijder ◽  
Joost W. Korver ◽  
Sieme Pelzer ◽  
Mireia Sancho-Such ◽  
...  
Keyword(s):  
Interspecific Hybrids ◽  
Pcr Primers ◽  
Crop Wild Relatives ◽  
Wild Relatives ◽  
Biparental Inheritance ◽  
Diagnostic Pcr ◽  
Plastid Inheritance ◽  
Diverse Species ◽  
Segregation Ratios ◽  
Biparental Plastid Inheritance

The genetics underlying Cyto-Nuclear Incompatibility (CNI) was studied in Pelargonium interspecific hybrids. We created hybrids of 12 closely related crop wild relatives (CWR) with the ornamental P. × hortorum. Ten of the resulting 12 (F1) interspecific hybrids segregate for chlorosis suggesting biparental plastid inheritance. The segregation ratios of the interspecific F2 populations show nuclear interactions of one, two, or three nuclear genes regulating plastid function dependent on the parents. We further validated that biparental inheritance of plastids is common in section Ciconium, using diagnostic PCR primers. Our results pave the way for using the diverse species from section Ciconium, each with its own set of characteristics, as novel sources of desired breeding traits for P. × hortorum cultivars.

Inheritance of mitochondrial DNA in interspecific crosses of Piceaglauca and Piceaomorika

1996 ◽  
Vol 26 (3) ◽  
pp. 428-432 ◽  
Author(s):  
Andrew J. David ◽  
Daniel E. Keathley
Keyword(s):  
Mitochondrial Dna ◽  
Interspecific Hybrids ◽  
Maternal Inheritance ◽  
White Spruce ◽  
Mitochondrial Genes ◽  
Interspecific Crosses ◽  
Length Polymorphisms ◽  
Dna Restriction ◽  
Total Dna ◽  
Serbian Spruce

Fifteen interspecific hybrids of Serbian spruce (Piceaomorika (Panc) Purkyne) and white spruce (Piceaglauca (Moench) Voss) representing five separate crosses, including reciprocals, were used to demonstrate maternal inheritance of mitochondrial DNA. Total DNA was extracted from foliage samples of Serbian spruce (S), white spruce (W), and both S(♂) × W(♀) and W(♂) × S(♀) hybrids, digested and probed with one of two maize mitochondrial genes, ATPaseα or COXII. ATPaseα generated diagnostic Serbian and white spruce genotypes for all five enzymes tested, while COXII differentiated between the two species for four of five enzymes. Maternal inheritance was indicated in all hybrids for every diagnostic enzyme–probe combination. No paternal or nonparental bands were detected. A dilution experiment indicated that the Serbian and white spruce mitochondrial DNA restriction fragment length polymorphisms could be detected in as little as 60 and 500 ng of total DNA, respectively. It appears that the mechanism that controls the inheritance of mitochondria in Picea is still functional in wide interspecific crosses.

scholarly journals Deep Transcriptomic Analysis Reveals the Dynamic Developmental Progression during Early Development of Channel Catfish (Ictalurus punctatus)

2020 ◽  
Vol 21 (15) ◽  
pp. 5535
Author(s):  
Xiaoli Ma ◽  
Baofeng Su ◽  
Yuan Tian ◽  
Nathan Backenstose ◽  
Zhi Ye ◽  
...  
Keyword(s):  
Early Development ◽  
Ictalurus Punctatus ◽  
Channel Catfish ◽  
Developmental Stages ◽  
Differential Expression Analysis ◽  
Central Element ◽  
Phosphate Transport ◽  
Underlying Mechanisms ◽  
Regulation Of Cell Cycle ◽  
Differentiation And Proliferation

The transition from fertilized egg to larva in fish is accompanied with various biological processes. We selected seven early developmental stages in channel catfish, Ictalurus punctatus, for transcriptome analysis, and covered 22,635 genes with 590 million high-quality RNA-sequencing (seq) reads. Differential expression analysis between neighboring developmental timepoints revealed significantly enriched biological categories associated with growth, development and morphogenesis, which was most evident at 2 vs. 5 days post fertilization (dpf) and 5 vs. 6 dpf. A gene co-expression network was constructed using the Weighted Gene Co-expression Network Analysis (WGCNA) approach and four critical modules were identified. Among candidate hub genes, GDF10, FOXA2, HCEA and SYCE3 were involved in head formation, egg development and the transverse central element of synaptonemal complexes. CK1, OAZ2, DARS1 and UBE2V2 were mainly associated with regulation of cell cycle, growth, brain development, differentiation and proliferation of enterocytes. IFI44L and ZIP10 were critical for the regulation of immune activity and ion transport. Additionally, TCK1 and TGFB1 were related to phosphate transport and regulating cell proliferation. All these genes play vital roles in embryogenesis and regulation of early development. These results serve as a rich dataset for functional genomic studies. Our work reveals new insights of the underlying mechanisms in channel catfish early development.

scholarly journals Determination of the relatedness, ease of hybridization and gene exchange among members of the genus Capsicum in Nigeria

2020 ◽  
Vol 12 (3) ◽  
pp. 658-672
Author(s):  
Paul B. AHMODU ◽  
Joseph A. MORAKINYO ◽  
Catherine T. AHMODU
Keyword(s):  
Related Species ◽  
Maternal Inheritance ◽  
Interspecific Crosses ◽  
Gene Exchange ◽  
Closely Related Species ◽  
Partial Dominance ◽  
Leaf Density ◽  
Genus Capsicum ◽  
Flower Position

The fruit of Capsicum plants have a variety of names depending on place and type. This research was focused at studying the exchange of genes amongst members of the genus Capsicum in Nigeria. The process of interspecific and intervarietal hybridization of two (2) species of the genus Capsicum; C. annuum and C. frutasense were carried out and the results show that most of the studied attributes like arrangement of leaves, shape of leaves, leaf density were undetermined while majority with distinct changes follow maternal inheritance. There were less successes among the interspecific crosses and high successes between varietal crosses ranging from 19.5% to 2.4% for the inter-varietal cross and 9.3% to 2.4% for interspecific crosses. This indicates that there are more hybridization barriers among interspecific hybridization than inter-varietal hybridization. The closely related species and varieties had higher percentage success of hybridization and vice versa. Characters such as Hypocotyl colour had partial dominance. Erect flower position is dominant in W and hybrid T*W while pendant is recessive. Red fruit colour at maturity, green fruit stalk colour was dominant while yellow was recessive. A good knowledge of how related species of the genus Capsicum are, the easier it will enable researchers to hybridize and improve the genus.

M2013 Cyclic Vomiting Syndrome: Quantitative Pedigree Analysis for Maternal Inheritance Patterns in Adults and Children

2010 ◽  
Vol 138 (5) ◽  
pp. S-458 ◽  
Author(s):  
Thangam Venkatesan ◽  
Stephanie Wagler ◽  
Nilay Kumar ◽  
Jyotirmoy Sengupta ◽  
Abhilasha Pandey ◽  
...  
Keyword(s):  
Maternal Inheritance ◽  
Pedigree Analysis ◽  
Cyclic Vomiting Syndrome ◽  
Inheritance Patterns ◽  
Adults And Children ◽  
Cyclic Vomiting
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