37 / 48
Plant Genomics 2019
June 13-14, 2019
Berlin, Germany
Asian Journal of Plant Science & Research
ISSN: 2249-7412
Page 37
Plant Genomics
5
th
Edition of International Conference on
AJPSKY 2019, Volume 09
Genomic Reshuffle Among Hybrids Offers Strategies
for Survival of Segregates In Nature:
I. Ophioglossum L.
(Pteridophyta)
Mitesh Patel
Veer Narmad South Gujarat University, India
M
odern plant biology research is getting totally
trapped in laboratories but on making field surveys
and population enumeration over several years we
have encountered too many variations and evolutionary
mechanisms within the species and many species
of the same genus. One of the major reasons which
is becoming now popularly known and studied is the
incidence of natural hybridizations. Population biology
studies conducted (during 1970-2018) by one of us
(HKG) have presented such unusual features exhibited by
the genomes of the pteridophytic genera
Ophioglossum
L
and
Isoetes L
that have become unknown and unique
among the related genera and species. Lately, a similar
attempt has been under operation in Gujarat, in search of
intragenomic variations within the genus
Ophioglossum
in the Western part of India. We have not only discovered
unique and hitherto unknown features in several species
of
Ophioglossum
but also on the basis of morphological
and phylogenetic studies conducted on DNA isolation-
sequencing and comparative genomics have identified
new species. A few of them appear to be natural hybrids.
While in Central India and Rajasthan,
Ophioglossum
costatum
has been identified to be a one of the putative
parents, inGujrat populations, thegenus indicates genetic
involvement of
O. vulgatum
. Obviously, participation of
species depends upon their closer occurrence within
the ecological niche. Major but consistent variables are
some of the attributes of biological evolution to ascertain
the survival. Obviously, natural hybridizations abruptly
disrupt meiotic selections of the species; male-gamete
contribution remains unaffected; but female parent or
the diploid (Zygote) faces partial threat, because, the
product-hybrid undergoes survival tests at many stages.
Briefly, evolution of certain designated “new genomes”
tagged as new species, viz.
Ophioglossum
malviae
Patel & Reddy; O. eliminaum Khandelwal & Goswami; O.
indicum Yadav & Goswami; O. chalonerii Goswami et al;
O. aletumPatel, et al; and O. hitkishorei Patel & Reddy will
be presented.