e-journal

Nucleotide variability and gene expression reveal new putative genes related to seed shattering in weedy rice

---

Abstract.
Seed shattering is one of the main traits related with the domestication of
cultivated rice and with the invasiveness and persistence of weedy rice. Two
independent studies in 2006 have indicated that qSH1 in Japonica and Sh4 in
Indica rice are major genes governing this trait. However, a wide variation of
seed shattering occurs in weedy rice ecotypes from the same geographic region
and even within the same ecotype. The aim of this study was to evaluate the
nucleotide variability of known and putative genes related to seed shattering
in cultivated rice and to identify and validate new genes related to this trait
in weedy rice. The qSH1 gene was not associated with seed shattering in
the evaluated genotypes. The nucleotide variability of the genes Os01g0849100
and Os08g0512400, previously identified based on a genome-wide resequencing
study, was related to seed shattering in rice. The nucleotide variability of three
single nucleotide polymorphisms (SNPs) of the OsXTH8 gene, which is related
to cell wall biosynthesis, was not associated with seed shattering. However, the
high expression of this gene was related to the occurrence of this trait. This study
evaluated jointly a series of genes involved in rice seed shattering and indicated
that the genes OsXTH8, Os08g0512400 and Os01g0849100 are important for the
regulation of this trait in weedy rice in addition to previously described genes.
Seed shattering in weedy rice has a more complex regulation than in cultivated
rice where few major genes were identified.

Keywords
Abscission layer; Oryza sativa; qSH1; red rice; seed dispersal; Sh4.

---

Ketersediaan

Tidak ada salinan data

Informasi Detail

Judul Seri

Annals of Applied Biology

No. Panggil

-

Penerbit

: Association of Applied Biologists., 2015

Deskripsi Fisik

Ann Appl Biol 166 (2015) 39–52

Bahasa

English

ISBN/ISSN

00034746

Klasifikasi

-

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

BIOLOGI
PEMULIAAN TANAMAN

Info Detail Spesifik

-

Pernyataan Tanggungjawab

agus

Versi lain/terkait

Lampiran Berkas

Komentar

---

Anda harus masuk sebelum memberikan komentar