World

Study identifies genomic region related to sex determination of macroalga Undaria pinnatifida & More Trending News

 

Study identifies genomic region related to sex determination of microalga Undaria pinnatifida
Undaria pinnatifida. Credit: CSIRO/Wikimedia Commons, CC BY

Undaria pinnatifida is an economically essential brown macroalga in China. There are three sexual phenotypes (feminine, male, and monoicous) within the haploid gametophytes of U. pinnatifida. However, the sex-determining mechanisms stay unknown.


Recently, a analysis workforce led by Prof. Pang Shaojun from the Institute of Oceanology of the Chinese Academy of Sciences (IOCAS) has recognized a genomic region related to sex determination of U. pinnatifida by genomic resequencing and genetic linkage analyses of a segregating gametophyte household.

The research was revealed in Journal of Phycology on Nov. 4.

The researchers established a segregating gametophyte household that was derived from meiosis of a hybrid sporophyte between a monoicous gametophyte clonal line (male function) and a feminine one. They re-sequenced the household based mostly on the male genome of U. pinnatifida and constructed a high-density genetic linkage map utilizing 9,887 single nucleotide polymorphisms (SNPs), with a median distance of 0.41 centimorgan (cM) between adjoining SNPs.

Sixty-two SNPs had been discovered to be tightly linked with sex phenotype based mostly on the genetic map and these SNPs had been at a place of 67.67 cM on the linkage group 23, corresponding to a bodily vary of 14.67 Mbp on the chromosome 23.

The researchers additionally reanalyzed the earlier particular size amplified fragment sequencing knowledge in accordance to the reference genome and recognized a sex-linked genomic region that contained the above-mentioned 14.67 Mbp region. Thus, they predicted that this overlapped genomic vary is the sex-determining region.

“We found 129 genes within this region, including the candidate male sex-determining gene encoding the high mobility group (HMG) domain protein,” stated Prof. Shan Tifeng, first creator of the research.

They additionally discovered that the HMG gene was expressed greater in vegetative male gametophytes, and in each the vegetative and gametogenesis phases of monoicous gametophytes, however considerably decrease within the gametogenesis section of male gametophytes.

“Now we are sequencing the genomes of female and monoicous sex. Once finished, we can compare the genomic difference of three different sexual phenotypes,” stated Prof. Pang, corresponding creator of the research.

More info:
Tifeng Shan et al, Identification of a genomic region linked with sex determination of Undaria pinnatifida (Alariaceae) by genomic resequencing and genetic linkage analyses of a segregating gametophyte household, Journal of Phycology (2022). DOI: 10.1111/jpy.13295

Provided by
Chinese Academy of Sciences

Citation:
Study identifies genomic region related to sex determination of macroalga Undaria pinnatifida (2022, December 9)
retrieved 9 December 2022
from https://phys.org/news/2022-12-genomic-region-sex-macroalga-undaria.html

This doc is topic to copyright. Apart from any truthful dealing for the aim of personal research or analysis, no
half could also be reproduced with out the written permission. The content material is supplied for info functions solely.

Study identifies genomic region related to sex determination of macroalga Undaria pinnatifida

I’ve made it my mission to maintain you up-to-date on all the most recent happenings on the earth as of proper now, within the 12 months 2022, by means of this web site, and I’m sure that you’re going to discover this to be an pleasurable expertise. Regardless of what the latest information might have to say, it stays a subject of intense curiosity.

It has all the time been our aim to talk with you and offer you up-to-date information and details about the information free of charge. information about electrical energy, levels, donations, Bitcoin buying and selling, actual property, video video games, client developments, digital advertising and marketing, telecommunications, banking, journey, well being, cryptocurrency, and claims are all included right here. You maintain seeing our messages as a result of we labored onerous to achieve this. Due to the wide range of content material sorts, please don’t hesitate to

Study identifies genomic region related to sex determination of macroalga Undaria pinnatifida

I’m sure you will discover the information I’ve ready and despatched out to be attention-grabbing and helpful; going ahead, we would like to embrace contemporary options tailor-made to your pursuits each week.

info with out going by us first, so we will present you the most recent and best information with out costing you a dime. The two of you could study the specifics of the information collectively, providing you with a leg up. We’ll get to the following step when somewhat time has gone.

Our aim is to maintain you up-to-date on all the latest information from across the globe by posting related articles on our web site, so that you could be all the time be one step forward. In this fashion, you will by no means fall behind the most recent developments in that information.

Study identifies genomic region related to sex determination of macroalga Undaria pinnatifida

The information tales I’ve shared with you might be both utterly authentic or will likely be utterly authentic to you and your viewers. Moreover, I’ve made all of this knowledge accessible to each one of you, together with Trending News, Breaking News, Health News, Science News, Sports News, Entertainment News, Technology News, Business News, and World News, so that you could be all the time be within the know, all the time be one step forward of the scenario, and all the time get at present’s information. The course that’s two steps forward of the present one ought to all the time be taken.

Read Entire Article🡽