Journal ArticleDOI
Cytotaxonomical analysis of Momordica L. (Cucurbitaceae) species of Indian occurrence.
L. K. Bharathi,A. D. Munshi,Vinod,Shanti Chandrashekaran,T.K. Behera,A. B. Das,K. Joseph John,Vishalnath +7 more
TLDR
Evidence from morphology, crossability, pollen viability and chromosome synapsis suggests a segmental allopolyploid origin for M. cymbalaria, a taxon of controversial taxonomic identity of the Momordica genus.Abstract:
Somatic chromosome number and detailed karyotype analysis were carried out in six Indian Momordica species viz. M. balsamina, M. charantia, M. cochinchinensis, M. dioica, M. sahyadrica and M. cymbalaria (syn. Luffa cymbalaria; a taxon of controversial taxonomic identity). The somatic chromosome number 2n = 22 was reconfirmed in monoecious species (M. balsamina and M. charantia). Out of four dioecious species, the chromosome number was reconfirmed in M. cochinchinensis (2n = 28), M. dioica (2n = 28) and M. subangulata subsp. renigera (2n = 56), while in M. sahyadrica (2n = 28) somatic chromosome number was reported for the first time. A new chromosome number of 2n = 18 was reported in M. cymbalaria against its previous reports of 2n = 16, 22. The karyotype analysis of all the species revealed significant numerical and structural variations of chromosomes. It was possible to distinguish chromosomes of M. cymbalaria from other Momordica species and also between monoecious and dioecious taxa of the genus. Morphology and crossability among the dioecious species was also studied. Evidence from morphology, crossability, pollen viability and chromosome synapsis suggests a segmental allopolyploid origin for M. subangulata subsp. renigera. The taxonomic status of the controversial taxon M. cymbalaria was also discussed using morphological, karyological and crossability data.read more
Citations
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Journal ArticleDOI
Draft genome sequence of bitter gourd (Momordica charantia), a vegetable and medicinal plant in tropical and subtropical regions
Naoya Urasaki,Hiroki Takagi,Satoshi Natsume,Aiko Uemura,Naoki Taniai,Norimichi Miyagi,Mai Fukushima,Shouta Suzuki,Kazuhiko Tarora,Moritoshi Tamaki,Moriaki Sakamoto,Ryohei Terauchi,Hideo Matsumura +12 more
TL;DR: Comparative analysis of genome sequences and predicted genes determined that putative trypsin-inhibitor and ribosome-inactivating genes were distinctive in the bitter gourd genome, which could characterize the bittergourd as a medicinal plant.
Journal ArticleDOI
Food prospects and nutraceutical attributes of Momordica species: A potential tropical bioresources – A review
TL;DR: The present review compares and highlights the current knowledge of the nutritional value, phytochemistry and physiological effects of wild species with known variety on Momordica species having several pharmacological activities.
Journal ArticleDOI
Mapping of the Gynoecy in Bitter Gourd (Momordica charantia) Using RAD-Seq Analysis
Hideo Matsumura,Norimichi Miyagi,Naoki Taniai,Mai Fukushima,Kazuhiko Tarora,Ayano Shudo,Naoya Urasaki +6 more
TL;DR: To identify the DNA markers for this gynoecy, a RAD-seq analysis was employed to reveal genome-wide DNA polymorphisms and to genotype the F2 progeny from a cross between OHB61-5 and a monoecious line.
Book
Momordica genus in Asia - An Overview
L. K. Bharathi,K. Joseph John +1 more
TL;DR: The current picture of the current understanding on the taxonomic status, distribution, genetics, cytology, reproductive biology, crossability relationships, genetic resources, crop improvement, husbandry and ethnobotany of this important group of under-utilised vegetables is given.
Journal ArticleDOI
Genomic evidence for local adaptation in the ovoviviparous marine fish Sebastiscus marmoratus with a background of population homogeneity
TL;DR: The present results suggest that the population structure is strongly influenced by locally adaptive pressure, and adaptive evolution in a heterogeneous environment plays an important role in inducing genetic differentiation among local populations.
References
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Cyto-genetical investigations in some common cucurbits, with special reference to fragmentation of chromosomes as a physical basis of speciation.
P N Bhaduri,P C Bose +1 more
TL;DR: Are sex chromosomes in higher pl,~nt~ nucleologenic?
Journal ArticleDOI
Cytological and Phylogenetic Studies in the Cucurbitaceae
TL;DR: The results of an experimental study of the fertility relations involving 4 genera and 8 species of the Cucurbitaceae indicate that species crossing is comparatively rare and not at all in accord with popular beliefs.
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A three-genome phylogeny of Momordica (Cucurbitaceae) suggests seven returns from dioecy to monoecy and recent long-distance dispersal to Asia.
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Cyto-genetical investigations in some common cucurbits, with special reference to fragmentation of chromosomes as a physical basis of speciation.
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